[quote]ORIGINAL: LSP972
ORIGINAL: jetmech05
If you're flying the Mustang PTS with the 3 bladed prop...get a two blade APC...take off the speed brakes, raise the flaps and go teach him.....
Nope, have a Graupner
11X7.5 on an OS .46SF, flaps are operational (i.e., up unless I call for them), never installed the "speed brakes", and got rid of the droops after the first flight.
Its still a pig below half throttle.
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11X7.5 is not a good choice for a trainer. If you want to build up speed, I guess it could do that, but I think thrust is more what a trainer needs. Go toi 11X5 or 11X6 and see the improved performance.