Very interesting thread Wolf and great information. I recognize the photo of Chris but I wasn't aware that was Ace Mongrel kit #1 or that the black nose cone pictured was all one long nose cone.

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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Steve Naquin
TRA# 677 L2
NAR# 85518 L2
SAM# 0052

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