http://www.djaerotech.com/dj_askjd/d.../lomcevak.html
http://www.fightercombat.com/maneuvers/Lomcevak.pdf


Most RC pilots will call any tumble they started on a 45 degree line a Lomcevak. Fine, what ever makes 'em happy. I mean it really doesn't matter as we are all out to have fun. But any ole tumble is not a Lomcevak. A Lomcevak has a very unique look and can only be produced by gyroscopic precession. I believe there are five major Lomcevak variations, and they all have a very precise definition. If the plane does not undergo precession in the tumble due to prop inertia, it was not a Lomcevak. Only very large models (probably 40%+) would have a chance, and they would really need those light carbon fiber props replaced with metal to increase prop mass. My 35% will not Lomcevak. Sure, it will tumble like mad, but I can't get significant gyroscopic precession. Maybe my 99.99% figure is stiff, but I have only seen one model ever that looked like it might have significantly precessed. It had a wood prop, but was a magneto engine with a massive flywheel.