638 lines
		
	
	
		
			31 KiB
		
	
	
	
		
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			638 lines
		
	
	
		
			31 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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| <!--
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| Blue Tube (from Always Ready Rocketry) parts file for OpenRocket.
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| 
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| by Dave Cook NAR 21953  caveduck17@gmail.com 2017
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| 
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| Summary
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| =======
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| This file provides Blue Tube parts definitions per the dimensions now shown on the vendor's web
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| site alwaysreadyrocketry.com.  
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| 
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| The Blue Tube product line is now in the hands of Always Ready Rocketry (alwaysreadyrocketry.com).
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| As of 2017, they produce CNC machined plywood bulkheads and centering rings to fit the blue tube
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| sizes, and also sell nose cones of unspecified origin.
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| 
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| The stock OpenRocket bluetube.orc only lists tubes and couplers; it does not have any of the
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| bulkheads, rings or nose cones currently listed by ARR.  We should be able to add the bulkheads
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| and centering rings; howeever the nose cones sold by ARR have no dimensions listed.  It's not
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| clear from where they are sourced.
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| 
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| Dimension Evolution over Time
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| =============================
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| The current (2017) dimensions are complete, but well hidden in the dropdown menu items on the ARR store page.
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| Dimensions previously available from vendors were very inconsistent.
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| 
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| It appears likely that various batches of Blue Tube produced over the years have not all had
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| identical dimensions.  There is an old RockSim parts file BTDATA.CSV that once was linked from the ARR
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| website that had mildly variant dimensions for some sizes and wall thicknesses.  Notably, the IDs
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| in that file were essentially identical to LOC tube IDs except for the 5.5" tube which was smaller by 0.035".
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| 
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| There is an interesting statement on the "Bulkheads" page in the ARR store that "we individually
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| fit each ring and bulkplate to current production Blue Tube 2.0 sizes...".  This rather strongly
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| implies that the Blue Tube sizes used to be different.
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| 
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| The current tube inside diameters (IDs) mostly align with the prevalent LOC Precision tube sizes;
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| the major exception is the 5.5" series tubes where the diameter is more than 0.1" different.
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| 
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| In the stock OpenRocket, the tubes were found in "bluetube.orc", and there is no mention of
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| Alwaays Ready Rocketry or the additional parts they make.  The dimensions in that file are from
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| non-current data; possibly they are derived from the old RockSim file.
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| 
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| Overall, there is not enough data available to track the historical Blue Tube size variants,
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| so I have elected to only show the current 2017 published dimensions.
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| 
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| Tube Density
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| ============
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| 
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| I have a tube density analysis based on my own actual and externally reported measurements that finds the
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| density of Blue Tube to be 1153.5 kg/m3 with a very good standard deviation of 17.3.  The stock
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| OpenRocket file has a density value of 1250, which is nearly 10% too high.
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| 
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| Part Numbers
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| ============
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| 
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| The PNs shown in the stock OpenRocket file came from previous editions of the ARR website.  On the current
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| (2017) site there are no PNs for any product - even when you add the items to your cart, they are shown by full description only.
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| The old tube PNs looked like "BT20-139C"; all started with "BT20", which is a bit confusing
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| until you know it means "BlueTube 2.0" and does not refer to a size.
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| Four foot lengths had an A suffix, while one foot lengths had a "C suffix."  The 6 foot lengths now
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| available for the 5.5, 6.0 and 7.5" sizes were not then represented.
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| 
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| There is a quirk in the listings for 1.15" and 1.52" x 48" tubes:  there are separate listings
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| for two apparently different items, one designated as "airframe", the other as "MMT ONLY".  The
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| dimensions shown are identical so it's not clear what the difference is.  For larger tubes 2.15"
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| and up, all are shown as "airframe/MMT".
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| 
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| Tube couplers are listed in "standard" 12-18 inch lengths, and also in 48" "full length" pieces.
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| Fortunately, as for the body tubes, complete dimensions are given in the store menu dropdowns.
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| 
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| To fix all this I have created consistent pseudo-PNs using the diameter and length in inches.
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| 
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| BT_1.15_12_MMT     1.15" (29mm) MMT tube 12" long
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| BT_1.15_48         1.15" (29mm) Airframe tube 48" long
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| BT_1.52_48_MMT     1.52" (38mm) MMT tube 48" long
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| BT_2.15_48         2.15" (54MM) airframe/MMT tube 48" long
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| BT_7.5_72          7.5" airframe tube 72" long
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| TC_5.5_12          Coupler for BT_5.5, 12" long
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| -->
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| <OpenRocketComponent>
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|     <Version>0.1</Version>
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|     <Materials>
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|         <!-- Blue Tube density from measurements.  Standard deviation is 17.3 kg/m3 -->
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|         <Material UnitsOfMeasure="g/cm3">
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|             <Name>Vulcanized Fiber</Name>
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|             <Density>1153.5</Density>
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|             <Type>BULK</Type>
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|         </Material>
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|     </Materials>
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|         <Material UnitsOfMeasure="g/cm3">
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|             <Name>Plywood, aircraft, 1/4 in. bulk</Name>
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|             <Density>344.3</Density>
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|             <Type>BULK</Type>
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|        </Material>
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| 
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|     <Components>
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| 
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|         <!-- ================================ -->
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|         <!-- AIRFRAME / MMT TUBES             -->
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|         <!-- ================================ -->
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| 
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|         <!-- 1.15" (29mm) tubes.  MMT sold in 12, 24, 48" lengths, aiframe in 48" only -->
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_1.15_12_MMT</PartNumber>
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|             <Description>Blue Tube, 1.15"/29mm, MMT, 12" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">1.150</InsideDiameter>
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|             <OutsideDiameter Unit="in">1.274</OutsideDiameter>
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|             <Length Unit="in">12.0</Length>
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|         </BodyTube>
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_1.15_24_MMT</PartNumber>
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|             <Description>Blue Tube, 1.15"/29mm, MMT, 24" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">1.150</InsideDiameter>
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|             <OutsideDiameter Unit="in">1.274</OutsideDiameter>
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|             <Length Unit="in">24.0</Length>
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|         </BodyTube>
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_1.15_48_MMT</PartNumber>
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|             <Description>Blue Tube, 1.15"/29mm, MMT, 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">1.150</InsideDiameter>
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|             <OutsideDiameter Unit="in">1.274</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_1.15_48</PartNumber>
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|             <Description>Blue Tube, 1.15"/29mm, airframe, 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">1.150</InsideDiameter>
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|             <OutsideDiameter Unit="in">1.274</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
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| 
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|         <!-- 1.52" (38mm) tubes, 48" lengths only, separate airframe and MMT types -->
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_1.52_48_MMT</PartNumber>
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|             <Description>Blue Tube, 1.52"/38mm, MMT, 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">1.520</InsideDiameter>
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|             <OutsideDiameter Unit="in">1.644</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_1.52_48</PartNumber>
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|             <Description>Blue Tube, 1.52"/38mm, airframe, 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">1.520</InsideDiameter>
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|             <OutsideDiameter Unit="in">1.644</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
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| 
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|         <!-- 2.15" (54mm) tube, combined airframe/MMT, 48" len only -->
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_2.15_48</PartNumber>
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|             <Description>Blue Tube, 2.15"/54mm, airframe/MMT, 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">2.15</InsideDiameter>
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|             <OutsideDiameter Unit="in">2.274</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
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| 
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|         <!-- 2.56" (63mm) tube, airframe, 48" len only -->
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_2.56_48</PartNumber>
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|             <Description>Blue Tube, 2.56"/63mm, airframe, 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">2.56</InsideDiameter>
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|             <OutsideDiameter Unit="in">2.684</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
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| 
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|         <!-- 3.0" (75mm) tube, combined airframe/MMT, 48" len only -->
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_3.00_48</PartNumber>
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|             <Description>Blue Tube, 3.00"/75mm, airframe/MMT, 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">3.00</InsideDiameter>
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|             <OutsideDiameter Unit="in">3.124</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
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| 
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|         <!-- 4" (3.9" / 98mm) tube, combined airframe/MMT, 48" len only -->
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_3.90_48</PartNumber>
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|             <Description>Blue Tube, 3.90"/98mm, airframe/MMT, 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">3.9</InsideDiameter>
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|             <OutsideDiameter Unit="in">4.024</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
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| 
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|         <!-- 5.5" tube, 48" and 72" lengths available -->
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_5.5_48</PartNumber>
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|             <Description>Blue Tube, 5.5", airframe, 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">5.5</InsideDiameter>
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|             <OutsideDiameter Unit="in">5.654</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_5.5_72</PartNumber>
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|             <Description>Blue Tube, 5.5", airframe, 72" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">5.5</InsideDiameter>
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|             <OutsideDiameter Unit="in">5.654</OutsideDiameter>
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|             <Length Unit="in">72.0</Length>
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|         </BodyTube>
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| 
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|         <!-- 6" (150mm) tube, 48" and 72" lengths available -->
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_6.0_48</PartNumber>
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|             <Description>Blue Tube, 6.0", airframe/MMT, 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">6.0</InsideDiameter>
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|             <OutsideDiameter Unit="in">6.148</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_6.0_72</PartNumber>
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|             <Description>Blue Tube, 6.0", airframe, 72" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">6.0</InsideDiameter>
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|             <OutsideDiameter Unit="in">6.148</OutsideDiameter>
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|             <Length Unit="in">72.0</Length>
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|         </BodyTube>
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| 
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|         <!-- 7.5" tube, 48" and 72" lengths available -->
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_7.5_48</PartNumber>
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|             <Description>Blue Tube, 7.5", airframe, 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">7.5</InsideDiameter>
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|             <OutsideDiameter Unit="in">7.660</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>BT_7.5_72</PartNumber>
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|             <Description>Blue Tube, 7.5", airframe, 72" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">7.5</InsideDiameter>
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|             <OutsideDiameter Unit="in">7.660</OutsideDiameter>
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|             <Length Unit="in">72.0</Length>
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|         </BodyTube>
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| 
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|         <!-- ================================ -->
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|         <!-- TUBE COUPLERS                    -->
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|         <!-- ================================ -->
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| 
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|         <!-- TC_1.15 available in 8" and 48" lengths -->
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>TC_1.15_8</PartNumber>
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|             <Description>Blue Tube coupler, 1.15", 8" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">1.023</InsideDiameter>
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|             <OutsideDiameter Unit="in">1.147</OutsideDiameter>
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|             <Length Unit="in">8.0</Length>
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|         </BodyTube>
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>TC_1.15_48</PartNumber>
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|             <Description>Blue Tube coupler, 1.15", 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">1.023</InsideDiameter>
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|             <OutsideDiameter Unit="in">1.147</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
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| 
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|         <!-- TC-1.52 available in 8" and 48" lengths -->
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>TC_1.52_8</PartNumber>
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|             <Description>Blue Tube coupler, 1.52", 8" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">1.393</InsideDiameter>
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|             <OutsideDiameter Unit="in">1.517</OutsideDiameter>
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|             <Length Unit="in">8.0</Length>
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|         </BodyTube>
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>TC_1.52_48</PartNumber>
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|             <Description>Blue Tube coupler, 1.52", 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">1.393</InsideDiameter>
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|             <OutsideDiameter Unit="in">1.517</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
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| 
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|         <!-- TC-2.15 available in 8" and 48" lengths -->>
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>TC_2.15_8</PartNumber>
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|             <Description>Blue Tube coupler, 2.15", 8" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">2.023</InsideDiameter>
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|             <OutsideDiameter Unit="in">2.147</OutsideDiameter>
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|             <Length Unit="in">8.0</Length>
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|         </BodyTube>
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>TC_2.15_48</PartNumber>
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|             <Description>Blue Tube coupler, 2.15", 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">2.023</InsideDiameter>
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|             <OutsideDiameter Unit="in">2.147</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
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| 
 | |
|         <!-- TC-2.56 available in 8" and 48" lengths -->>
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>TC_2.56_8</PartNumber>
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|             <Description>Blue Tube coupler, 2.56", 8" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">2.433</InsideDiameter>
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|             <OutsideDiameter Unit="in">2.557</OutsideDiameter>
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|             <Length Unit="in">8.0</Length>
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|         </BodyTube>
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>TC_2.56_48</PartNumber>
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|             <Description>Blue Tube coupler, 2.56", 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">2.433</InsideDiameter>
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|             <OutsideDiameter Unit="in">2.557</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
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| 
 | |
|         <!-- TC-3.00 available in 8" and 48" lengths -->>
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|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>TC_3.00_8</PartNumber>
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|             <Description>Blue Tube coupler, 3.00", 8" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">2.873</InsideDiameter>
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|             <OutsideDiameter Unit="in">2.997</OutsideDiameter>
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|             <Length Unit="in">8.0</Length>
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|         </BodyTube>
 | |
|         <BodyTube>
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|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>TC_3.00_48</PartNumber>
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|             <Description>Blue Tube coupler, 3.00", 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">2.873</InsideDiameter>
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|             <OutsideDiameter Unit="in">2.997</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
 | |
|         </BodyTube>
 | |
| 
 | |
|         <!-- TC-3.90 available in 8" and 48" lengths -->>
 | |
|         <BodyTube>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>TC_3.90_8</PartNumber>
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|             <Description>Blue Tube coupler, 3.90", 8" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">3.773</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">3.897</OutsideDiameter>
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|             <Length Unit="in">8.0</Length>
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|         </BodyTube>
 | |
|         <BodyTube>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
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|             <PartNumber>TC_3.90_48</PartNumber>
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|             <Description>Blue Tube coupler, 3.90", 48" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
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|             <InsideDiameter Unit="in">3.773</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">3.897</OutsideDiameter>
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|             <Length Unit="in">48.0</Length>
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|         </BodyTube>
 | |
| 
 | |
|         <!-- TC-5.5 available in 12", 16" and 48" lengths, 0.077" wall -->>
 | |
|         <BodyTube>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>TC_5.5_12</PartNumber>
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|             <Description>Blue Tube coupler, 5.5", 12" len</Description>
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|             <Material Type="BULK">Vulcanized Fiber</Material>
 | |
|             <InsideDiameter Unit="in">5.343</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">5.497</OutsideDiameter>
 | |
|             <Length Unit="in">12.0</Length>
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|         </BodyTube>
 | |
|         <BodyTube>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>TC_5.5_16</PartNumber>
 | |
|             <Description>Blue Tube coupler, 5.5", 16" len</Description>
 | |
|             <Material Type="BULK">Vulcanized Fiber</Material>
 | |
|             <InsideDiameter Unit="in">5.343</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">5.497</OutsideDiameter>
 | |
|             <Length Unit="in">16.0</Length>
 | |
|         </BodyTube>
 | |
|         <BodyTube>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>TC_5.5_48</PartNumber>
 | |
|             <Description>Blue Tube coupler, 5.5", 48" len</Description>
 | |
|             <Material Type="BULK">Vulcanized Fiber</Material>
 | |
|             <InsideDiameter Unit="in">5.343</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">5.497</OutsideDiameter>
 | |
|             <Length Unit="in">48.0</Length>
 | |
|         </BodyTube>
 | |
| 
 | |
|         <!-- TC-6.0 available in 12", 16" and 48" lengths, 0.074" wall -->>
 | |
|         <BodyTube>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>TC_6.0_12</PartNumber>
 | |
|             <Description>Blue Tube coupler, 6.0", 12" len</Description>
 | |
|             <Material Type="BULK">Vulcanized Fiber</Material>
 | |
|             <InsideDiameter Unit="in">5.849</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">5.997</OutsideDiameter>
 | |
|             <Length Unit="in">12.0</Length>
 | |
|         </BodyTube>
 | |
|         <BodyTube>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>TC_6.0_16</PartNumber>
 | |
|             <Description>Blue Tube coupler, 6.0", 16" len</Description>
 | |
|             <Material Type="BULK">Vulcanized Fiber</Material>
 | |
|             <InsideDiameter Unit="in">5.849</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">5.997</OutsideDiameter>
 | |
|             <Length Unit="in">16.0</Length>
 | |
|         </BodyTube>
 | |
|         <BodyTube>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>TC_6.0_48</PartNumber>
 | |
|             <Description>Blue Tube coupler, 6.0", 48" len</Description>
 | |
|             <Material Type="BULK">Vulcanized Fiber</Material>
 | |
|             <InsideDiameter Unit="in">5.849</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">5.997</OutsideDiameter>
 | |
|             <Length Unit="in">48.0</Length>
 | |
|         </BodyTube>
 | |
| 
 | |
|         <!-- TC-7.5 available in 12", 16" and 48" lengths, 0.080" wall -->>
 | |
|         <BodyTube>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>TC_7.5_12</PartNumber>
 | |
|             <Description>Blue Tube coupler, 7.5", 12" len</Description>
 | |
|             <Material Type="BULK">Vulcanized Fiber</Material>
 | |
|             <InsideDiameter Unit="in">7.337</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">7.497</OutsideDiameter>
 | |
|             <Length Unit="in">12.0</Length>
 | |
|         </BodyTube>
 | |
|         <BodyTube>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>TC_7.5_16</PartNumber>
 | |
|             <Description>Blue Tube coupler, 7.5", 16" len</Description>
 | |
|             <Material Type="BULK">Vulcanized Fiber</Material>
 | |
|             <InsideDiameter Unit="in">7.337</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">7.497</OutsideDiameter>
 | |
|             <Length Unit="in">16.0</Length>
 | |
|         </BodyTube>
 | |
|         <BodyTube>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>TC_7.5_48</PartNumber>
 | |
|             <Description>Blue Tube coupler, 7.5", 48" len</Description>
 | |
|             <Material Type="BULK">Vulcanized Fiber</Material>
 | |
|             <InsideDiameter Unit="in">7.337</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">7.497</OutsideDiameter>
 | |
|             <Length Unit="in">48.0</Length>
 | |
|         </BodyTube>
 | |
| 
 | |
|         <!-- Centering Rings.  No dimensional or weight data given; using offsets from tube sizes. -->
 | |
|         <!-- Up to 4" are 6mm Baltic Birch ply, 5.5" are 9mm ply, and 6.0 and 7.5" sizes are 12mm plywood -->
 | |
|         <!-- 29mm OD to 38mm ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-38/29</PartNumber>
 | |
|             <Description>Centering ring, plywood, 29mm to 38mm, .25"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/4 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">1.279</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">1.515</OutsideDiameter>
 | |
|             <Length Unit="in">0.25</Length>
 | |
|         </CenteringRing>
 | |
|         <!-- 29mm OD to 54mm ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-54/29</PartNumber>
 | |
|             <Description>Centering ring, plywood, 29mm to 54mm, .25"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/4 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">1.279</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">2.269</OutsideDiameter>
 | |
|             <Length Unit="in">0.25</Length>
 | |
|         </CenteringRing>
 | |
|         <!-- 38mm OD to 54mm ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-54/38</PartNumber>
 | |
|             <Description>Centering ring, plywood, 38mm to 54mm, .25"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/4 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">1.649</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">2.145</OutsideDiameter>
 | |
|             <Length Unit="in">0.25</Length>
 | |
|         </CenteringRing>
 | |
|         <!-- 29mm OD to 63mm ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-63/29</PartNumber>
 | |
|             <Description>Centering ring, plywood, 29mm to 63mm, .25"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/4 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">1.279</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">2.555</OutsideDiameter>
 | |
|             <Length Unit="in">0.25</Length>
 | |
|         </CenteringRing>
 | |
|         <!-- 38mm OD to 63mm ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-63/38</PartNumber>
 | |
|             <Description>Centering ring, plywood, 38mm to 63mm, .25"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/4 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">1.649</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">2.555</OutsideDiameter>
 | |
|             <Length Unit="in">0.25</Length>
 | |
|         </CenteringRing>
 | |
|         <!-- 29mm OD to 75mm ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-75/29</PartNumber>
 | |
|             <Description>Centering ring, plywood, 29mm to 75mm, .25"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/4 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">1.279</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">2.995</OutsideDiameter>
 | |
|             <Length Unit="in">0.25</Length>
 | |
|         </CenteringRing>
 | |
|         <!-- 38mm OD to 75mm ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-75/38</PartNumber>
 | |
|             <Description>Centering ring, plywood, 38mm to 75mm, .25"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/4 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">1.649</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">2.995</OutsideDiameter>
 | |
|             <Length Unit="in">0.25</Length>
 | |
|         </CenteringRing>
 | |
|         <!-- 54mm OD to 75mm ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-75/54</PartNumber>
 | |
|             <Description>Centering ring, plywood, 54mm to 75mm, .25"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/4 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">2.279</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">2.995</OutsideDiameter>
 | |
|             <Length Unit="in">0.25</Length>
 | |
|         </CenteringRing>
 | |
|         <!-- 29mm OD to 98mm ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-98/29</PartNumber>
 | |
|             <Description>Centering ring, plywood, 29mm to 98mm, .25"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/4 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">1.279</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">3.895</OutsideDiameter>
 | |
|             <Length Unit="in">0.25</Length>
 | |
|         </CenteringRing>
 | |
|         <!-- 38mm OD to 98mm ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-98/38</PartNumber>
 | |
|             <Description>Centering ring, plywood, 38mm to 98mm, .25"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/4 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">1.649</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">3.895</OutsideDiameter>
 | |
|             <Length Unit="in">0.25</Length>
 | |
|         </CenteringRing>
 | |
|         <!-- 54mm OD to 98mm ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-98/54</PartNumber>
 | |
|             <Description>Centering ring, plywood, 54mm to 98mm, .25"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/4 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">2.279</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">3.895</OutsideDiameter>
 | |
|             <Length Unit="in">0.25</Length>
 | |
|         </CenteringRing>
 | |
|         <!-- 75mm OD to 98mm ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-98/75</PartNumber>
 | |
|             <Description>Centering ring, plywood, 75mm to 98mm, .25"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/4 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">3.129</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">3.895</OutsideDiameter>
 | |
|             <Length Unit="in">0.25</Length>
 | |
|         </CenteringRing>
 | |
|         <!-- 38mm OD to 5.5" ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-139/38</PartNumber>
 | |
|             <Description>Centering ring, plywood, 38mm to 5.5", .50"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/2 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">1.649</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">5.495</OutsideDiameter>
 | |
|             <Length Unit="in">0.50</Length>
 | |
|         </CenteringRing>
 | |
|         <!-- 54mm OD to 5.5" ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-139/54</PartNumber>
 | |
|             <Description>Centering ring, plywood, 54mm to 5.5", .50"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/2 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">2.279</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">5.495</OutsideDiameter>
 | |
|             <Length Unit="in">0.50</Length>
 | |
|         </CenteringRing>
 | |
|         <!-- 75mm OD to 5.5" ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-139/75</PartNumber>
 | |
|             <Description>Centering ring, plywood, 75mm to 5.5", .50"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/2 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">3.129</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">5.495</OutsideDiameter>
 | |
|             <Length Unit="in">0.50</Length>
 | |
|         </CenteringRing>
 | |
|         <!-- 98mm OD to 5.5" ID -->
 | |
|         <CenteringRing>
 | |
|             <Manufacturer>Always Ready Rocketry</Manufacturer>
 | |
|             <PartNumber>CR-139/98</PartNumber>
 | |
|             <Description>Centering ring, plywood, 98mm to 5.5", .50"</Description>
 | |
|             <Material Type="BULK">Plywood, aircraft, 1/2 in. bulk</Material>
 | |
|             <InsideDiameter Unit="in">4.029</InsideDiameter>
 | |
|             <OutsideDiameter Unit="in">5.495</OutsideDiameter>
 | |
|             <Length Unit="in">0.50</Length>
 | |
|         </CenteringRing>
 | |
|     </Components>
 | |
| </OpenRocketComponent>
 |