On Jun 5, 9:18*am, Bertie the Bunyip wrote:
More_Flaps wrote in news:7d7074a7-c7bc-4a8b-9fe8-
:

My aerobatic traing is going very well, I'm having all the fun I
thought it should provide. So far I haven't messed up a manouver but
I'm nagged by the thought: How can I tell if my loops are perfect
circles? At present I go to full power at the vertical phase and over
the top but then throttle back a lot as I go vertical again .My wings
are level when inverted. I'm pulling 3.5 G as I pull up and level out
again. I hit my wake every time but I wonder how much I should
throttle back on the descent phase. Should I just try to keep rpm
constant? Any ifeas BtB or Dudley or other aerobatic pilot?

Dudley's the guy, but the only really reliable way I know of to tell
until you become experienced enough to know by feel is to get an outside
observer, or, better yet, a tripod mounted recording of them.
Into the wind helps a lot BTW, but "L" shaped or "granny" loops are
pretty much standard at this stage of your game!


OK but it's not practical for me to have a ground camera. Should rpm
be constant at all stages? What do you use in your Citabria? Could I
try counting through verticals to give me an indication? With a 3.5 G
entry I'm puliing about 0.5 G at the top is that going to give me a
near circular loop?

Cheers