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Old 01-05-2008, 11:06 PM
James Pierson James Pierson is offline
Master Modeler
 
Join Date: Dec 2005
Location: Washington State
Posts: 654
Lightbulb New Design: Cap Ship

Now that is it 2008 look like we need to bring this thread back on top. Lately I have added all of the Semroc Classic tubes and balsa transitions to my database and my parts options have doubled. Still have yet to get around to the Centering Rings files. I also need to update alot of early designs using the Maximum Frontal Diameter and other necessary changes in the next year.

The bad news is that Tranquility 1 will need a slight redesign. Only found this out after it was built. There is a problem with the lower retaining cup that hold the pods. I use a 1/2 inch piece of ST-16 and the pods fit just fine, however there is no room for a streamer once they are wraped around the pods. The fix will be to change the ST-16 to an ST-18 and replace all the lower fins . This give enough room for the streamer and a little extra for easy deployment. This is called learning the hard way .

Here is a ring fin design that I call the Cap Ship. It was inspired by a vintage cap toy that I saw on ebay. It uses 1 inch section of ST3030 which are about 3.6 iches in diameter.

Enjoy and Thanks Again, JP

Cap Ship (18mm)
Launch guide length: 36.0000 In

MOTOR.................MAX. ALTITUDE...........DEP. VELOCITY
A8-3..................152.30348 Ft.............14.5008 ft/s
B4-4..................382.48360 Ft..............5.1734 ft/s
B6-4..................389.86549 Ft..............3.6389 ft/s
C6-5..................867.97244 Ft..............1.8969 ft/s

James Pierson
NAR# 77907
Attached Thumbnails
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Name:  Cap Ship 2D Image.jpg
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Name:  Cap Ship 3D Image #1.jpg
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Size:  20.6 KB  Click image for larger version

Name:  Cap Ship 3D Image #2.jpg
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Attached Files
File Type: rkt Cap Ship Dmmy Fins.rkt (68.9 KB, 269 views)
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