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  #1  
Old 01-05-2012, 04:40 PM
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CPMcGraw CPMcGraw is offline
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Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Exclamation New Design -- Hi-Five

With a little inspiration from the old Estes Aero-Fin, and a little from the Centuri Vector-V...

The fins are shown as one piece, but they need to be made from three pieces each. Two sections of 3/32" balsa sheet, and a length of 1/8" dowel stock.

Length: 20.175"
Diameter: 1.34" (Paper Transition #2)
Fin Span: 8.26"
Weight: 1.15 oz


B4-4.......546'......Dv 18 FPS
C6-5......1091'......Dv 16 FPS


Both engines reach flight V on a 36" x 1/8" rod.

I'll post fin and transition patterns shortly...

Enjoy!
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File Type: rkt Hi-Five.rkt (127.4 KB, 37 views)
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  #2  
Old 01-05-2012, 05:58 PM
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CPMcGraw CPMcGraw is offline
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Join Date: Mar 2005
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Exclamation

Here are the patterns...

One sheet for the LL standoff. This is 1/8" thick balsa. One required.

One sheet for the main fins. This is 3/32" thick balsa. Five required.

One sheet for the transitions. Cardstock. One required.

The dowel stock starts as 9" lengths, but will be trimmed to fit the layout.
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Name:  Transitions.PNG
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File Type: zip Hi-Five.zip (79.8 KB, 32 views)
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