Originally Posted by
Homsap
. The G115 Tutor is the usual RAF upgrade, so like the difference between the Beagle Pup 100 (which was underpowered) and BAe Bulldog.
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I once checked out in a Pup 100. In my opinion it wasn't underpowered; about the same weight as a C150 with the same (O-200) engine but with a higher wing loading hence it had a longer takeoff run, I found it very pleasant to fly, but having said that, the O-240 would have made it better!