Ok, bme 50, prozinger 22/8, 7200 rpm, guessing 25+lbs thrust at sea level. Plane is a portly cap, 18lbs dry...

Great power, but not unlimited, dies out about 1000ft up...

Does the lower air density, at 1000ft up, really cause the lack of verticle. I would think 7-8lbs thrust over weight (25-18=) would be more than adequate...

Thoughts?

It should be enough to keep going, but it may not necessarily keep the same speed as when you are entering the maneuver. The plane should slow down to the point where drag equals whatever excess thrust you have, then it should keep going at that speed.

You may want to try another prop like the Menz or Mejlik. I hear the Zingers are not that great.

Azhar

Do a search on the pro zinger's, a lot of guys don't like them on the bigger aerobats. I would try a 3W 22-10. I feel the 3W, menz type props take a better bite of air.

Just my .02

Later, Scott

I hear the Airwild props are awesome... better than Menz some say