01-04-2007, 04:42 PM
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BARCLONE Rocketry
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Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
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New Plans -- Whippit and Whippit-X
Schoolyard Sounders.
These are two-stage designs for 13mm motors. The design is inspired by the old Estes Farside and Estes Delta models; they are not simple reductions of those designs. Both of these models will provide reasonably good small-field action, gaining less than 700'.
Whippit:
Length: 22.45"
Diameter: 0.908" (ST-8)
Fin Span: 4.41"
Weight: 1.38 oz
A10-0T / 1/2A3-4T......446'......Dv 6 FPS
A10-0T / A3-4T.........695'......Dv 27 FPS
Whippit-X:
Length: 20.75"
Diameter: 1.04 (ST-10)
Fin Span: 4.41"
Weight: 1.41 oz
A10-0T / 1/2A3-4T......437'......Dv 6 FPS
A10-0T / A3-4T.........683'......Dv 25 FPS
All motor combinations reach safe flight velocity on a standard launch rod.
Enjoy!
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