"Viperdoc" wrote in
:

Tumbles are the generic term for the gyroscopic maneuvers like
lomcevaks. The ones I've seen are all variations on outside snaps, but
the end tumble depends on the upline.


OK, I'm familiar with all of those, though I've never done one (tried in
Stearmans, but they never went over) I'd have called them all lomcevoks

The ones I've tried are not violent or especially disorienting.
However, my understanding is that it can be hard on a crankshaft, and
best done with a composite prop rather than an aluminum one.


Yes, that's always been the idea. Wood props were supposedly preferred, but
there weren't many guys doing them there (the model airplanes like you fly
were mostly in the future then) I've gotten plenty of RC models to do them,
however. They're surprisingly just like full size in the way they respond.
I take it you're doing fairly close to the vertical and just going conical
then, eh?


Bertie