07-29-2020, 12:55 PM
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Lost his Drifter
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Join Date: Mar 2013
Location: Northeast Ohio
Posts: 1,286
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Quote:
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Originally Posted by snaquin
These are fin dimensions that I had saved. Compare with what you were working with in your file as I did not have a chance to download or view your OpenRocket file before you removed it.
4 Trapezoidal 1/8" Fins
Root Chord Length: 8"
Tip Cord Length: 2"
Sweep Length: 8"
Sweep Angle: 55 Deg.
Semi Span: 5.625"
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The .ork file that I put up there went out of date quickly.
I've encountered these fin dimensions in rocksim files of two U.S. Rockets versions of the Mongrel. These files can be found on the Rocket Reviews website . When I compare them to a photo of the original, the semi-span seems too wide and the tip cord too short. So I don't believe that these represent the original.
See attached drawings that illustrate what I see, and the .ork file.
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NAR 28643 - TRA 15520
MTMA Section #606 President
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