not flying

Well, you may know me as the designer of the crappy Mini SR-71s, but I want to start some other designs, and the best thing I could think about making was a couple of small Korean War fighters, like the F-86 and MiG-15 (not warbirds because I can't stand looking at prop planes without props). I...

I scratch build a Tiny Trainer and used the Power Pack A. I checked CG and thought it was ok. Here's what happened: Two complete nosedives. Any ideas? The CG was fine, I don't think that's the issue. Perhaps wond but it was light today and the same thing happened both times.

I started gathering parts to build a multirotor awhile ago I got a bunch of cheap parts hoping to get it to fly. Originally I was going to program an arduino to be the controller but changed my mind in hopes to get it to fly and switched to a naze32 rev5. Problem is it won't lift off, it keeps...