diff --git a/core/src/net/sf/openrocket/gui/SpinnerEditor.java b/core/src/net/sf/openrocket/gui/SpinnerEditor.java
index be367f03c..be4b79525 100644
--- a/core/src/net/sf/openrocket/gui/SpinnerEditor.java
+++ b/core/src/net/sf/openrocket/gui/SpinnerEditor.java
@@ -24,4 +24,14 @@ public class SpinnerEditor extends JSpinner.DefaultEditor {
 		formatter.setOverwriteMode(false);
 	}
 
+	/**
+	 * Constructor which sets the number of columns in the editor.
+	 * @param spinner
+	 * @param cols
+	 */
+	public SpinnerEditor(JSpinner spinner, int cols ) {
+		this(spinner);
+		getTextField().setColumns(cols);
+	}
+	
 }
diff --git a/core/src/net/sf/openrocket/gui/configdialog/MotorConfig.java b/core/src/net/sf/openrocket/gui/configdialog/MotorConfig.java
index 227a475c6..45eca30f0 100644
--- a/core/src/net/sf/openrocket/gui/configdialog/MotorConfig.java
+++ b/core/src/net/sf/openrocket/gui/configdialog/MotorConfig.java
@@ -131,7 +131,7 @@ public class MotorConfig extends JPanel {
 		
 		dm = new DoubleModel(mount, "IgnitionDelay", 0);
 		spin = new JSpinner(dm.getSpinnerModel());
-		spin.setEditor(new SpinnerEditor(spin));
+		spin.setEditor(new SpinnerEditor(spin,3));
 		panel.add(spin, "gap rel rel");
 		
 		//// seconds
diff --git a/core/src/net/sf/openrocket/gui/configdialog/ParachuteConfig.java b/core/src/net/sf/openrocket/gui/configdialog/ParachuteConfig.java
index b8e87edde..1e767a78a 100644
--- a/core/src/net/sf/openrocket/gui/configdialog/ParachuteConfig.java
+++ b/core/src/net/sf/openrocket/gui/configdialog/ParachuteConfig.java
@@ -201,7 +201,7 @@ public class ParachuteConfig extends RecoveryDeviceConfig {
 		
 		m = new DoubleModel(component, "DeployDelay", 0);
 		spin = new JSpinner(m.getSpinnerModel());
-		spin.setEditor(new SpinnerEditor(spin));
+		spin.setEditor(new SpinnerEditor(spin,3));
 		panel.add(spin, "spanx, split");
 		
 		//// seconds
diff --git a/core/src/net/sf/openrocket/gui/configdialog/StreamerConfig.java b/core/src/net/sf/openrocket/gui/configdialog/StreamerConfig.java
index 576e6cded..491370454 100644
--- a/core/src/net/sf/openrocket/gui/configdialog/StreamerConfig.java
+++ b/core/src/net/sf/openrocket/gui/configdialog/StreamerConfig.java
@@ -202,7 +202,7 @@ public class StreamerConfig extends RecoveryDeviceConfig {
 		
 		m = new DoubleModel(component, "DeployDelay", 0);
 		spin = new JSpinner(m.getSpinnerModel());
-		spin.setEditor(new SpinnerEditor(spin));
+		spin.setEditor(new SpinnerEditor(spin,3));
 		panel.add(spin, "spanx, split");
 		
 		//// seconds