diff --git a/core/test/net/sf/openrocket/masscalc/MassCalculatorTest.java b/core/test/net/sf/openrocket/masscalc/MassCalculatorTest.java
index 193bcf0ac..f04e0f88f 100644
--- a/core/test/net/sf/openrocket/masscalc/MassCalculatorTest.java
+++ b/core/test/net/sf/openrocket/masscalc/MassCalculatorTest.java
@@ -1064,7 +1064,7 @@ public class MassCalculatorTest extends BaseTestCase {
 		double calcTotalMass = structure.getMass();
 		assertEquals(" Booster Launch Mass is incorrect: ", expMass, calcTotalMass, EPSILON);
 
-		final double expCMx = 1.0446069131149498;
+		final double expCMx = 1.1191303646438673;
 		Coordinate expCM = new Coordinate(expCMx, 0, 0, expMass);
 		assertEquals(" Booster Launch CM.x is incorrect: ", expCM.x, structure.getCM().x, EPSILON);
 		assertEquals(" Booster Launch CM.y is incorrect: ", expCM.y, structure.getCM().y, EPSILON);
@@ -1076,7 +1076,7 @@ public class MassCalculatorTest extends BaseTestCase {
 		double boosterMOI_xx = structure.getRotationalInertia();
 		assertEquals(" Booster x-axis MOI is incorrect: ", expMOI_axial, boosterMOI_xx, EPSILON);
 
-		final double expMOI_tr = 0.036243133045;
+		final double expMOI_tr = 0.040989095911;
 		double boosterMOI_tr = structure.getLongitudinalInertia();
 		assertEquals(" Booster transverse MOI is incorrect: ", expMOI_tr, boosterMOI_tr, EPSILON);
 	}