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Old 02-16-2009, 11:38 PM
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CPMcGraw CPMcGraw is offline
BARCLONE Rocketry
 
Join Date: Mar 2005
Location: Mobile, Alabama
Posts: 5,357
Exclamation A First Answer to the Challenge

Solo,

Here are three very basic, easily-buildable single-engine designs that meet your criteria. They are all ST-10 size models, which means they should have a nice "feel" in their hands. Not too small, like a BT-20 or ST-7 design, and not too large, like a BT-55 or ST-13 design. All of these use a standard 36" x 1/8" rod for launch.

The fin pattern is slightly modified from what RockSim offered. They are larger, and they are 1/8" thick balsa. That should also be a plus for small fingers, in that it has a bit more ruggedness when being handled.


XFNC Challenge #1:

Length: 21.10"
Diameter: 1.04" (ST-10)
Fin Span: 6.04"
Weight: 1.04 oz

A10-3T.....292'......Dv 8 FPS......Deploys on the way UP



XFNC Challenge #2:

Length: 31.10"
Weight: 1.42 oz

A10-3T......205'......Dv 8 FPS......Deploys on the way DOWN



XFNC Challenge #3:

Length: 29.10"
Weight: 1.36 oz

A10-3T......217'......Dv 5 FPS......Deploys AT APOGEE
Attached Thumbnails
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Name:  XFNC Challenge #1 3D.jpg
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Name:  XFC Challenge #1 Sim Runs.jpg
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Size:  212.8 KB  Click image for larger version

Name:  XFNC Challenge #2 3D.jpg
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Size:  15.2 KB  Click image for larger version

Name:  XFC Challenge #2 Sim Runs.jpg
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Size:  207.9 KB  Click image for larger version

Name:  XFNC Challenge #3 3D.jpg
Views: 116
Size:  16.2 KB  Click image for larger version

Name:  XFC Challenge #3 Sim Runs.jpg
Views: 109
Size:  210.2 KB  
Attached Files
File Type: rkt XFNC Challenge #1.rkt (112.3 KB, 121 views)
File Type: rkt XFNC Challenge #2.rkt (115.6 KB, 115 views)
File Type: rkt XFNC Challenge #3.rkt (115.6 KB, 112 views)
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