That's different than what I had in mind.

Nearly all of my early flights were done with the 18.1x10 pattern prop. It worked fine.

Started to work on the Extra, fitting the engine first. Firewall had to be moved back 1 1/4" to accomodate the soft mount and stand offs. Just for grins I weighed the firewall....85 gramsa real whopper.

A similarly sized piece made from cross grained balsa and carbon will weigh 20 grams. I don't think I'm going to make this thing stock after all.


Sorry guys I just can't resist the tinkerbell

Matt