I always seem to hold an unpopular position on Lomcevaks with fellow RC pilots... Shanes300, I seriously doubt your Eagle does a Lomcevak. I would readily believe it tumbles, but not a Lomcevak.

OK, my 35% will sometimes do a very sloppy lomcevak. If I catch it just right and open that DA100 up, the kick from going from idle to full throttle will sometimes precess such that the second tumble is KE, but it is rare. It will always flip, but it will rarely precess. This is the same reason torque effects on takeoff are more readily seen on full scale compared to models, etc.

Here is some vid of a full scale Lomcevak, variation on a main lomcevak
http://www.goldentriangleima.org/AS/mvc-313v.mpg

Here's another full scale that looks like a positive conic lomcevak, but it is hard to tell.
http://www.collmer.com/jcas/images/airshow5.mpg

Look closely at the vid, esp the first one. A lomcevak is not a three rotation tumble. It is not a end over end tumble. It is not a back flip or anything like that. If you do perform a 45 up 3 flip Lomcevak, such as shown in the first vid, the first tumble is sort-of forward, the second tumble is rotated so it looks like a KE spin and the 3rd is rotated again to ~level flight. The orientation change in each tumble is due to gyroscopic precession, NOT flight control surface movement.

I realize this may seem like splitting hairs to some, but it is really no different than calling a barrel roll a snap... if you don't depart, it wasn't a snap; if you don't precess, it isn't a lomcevak.

I don't doubt some model has performed a decent Lomcevak and I'd love to see it. Please post if anyone has model lomcevak vid.

Cheers!