Originally Posted by CPMcGraw

Nice going, Steve! Those coupons do come in handy for "special" purchases...

Translation: She can use 'em, too...

Now I can run the sim over again and get a more accurate profile...

The altitude came to 1138' with a slightly reduced Dv, down to 24 FPS, when burning the D12-5.

Interesting outcome with the C11-5. I get 565' with a Dv of 8 FPS. That's a really nice, clean flight with low velocity over the top.

Both motors seem to need a 48" x 3/16" rod with this bird, as they take at least 33" of guide length to reach flight V. An extra 12" wouldn't hurt.

What I really want is a "D" bird that Dv's below 10 FPS, and still gets off easily on a 36" rod. This one comes close, but I want the next one to be a little quicker on the launch.