Chris,

Here's the updated version of your design. It was under-finned, as you thought. Now, it flies with rather good performance, and only needs 0.375 oz of ballast (three 1/8th ounce fishing sinkers) at the inside-tip of the nose cone.

Attached Thumbnails

   

Attached Files

Gooney Corporal.rkt (52.5 KB, 117 views)

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