RE: Is An OS 55AX The Right Engine?
OK, OK, we are way off subject here.
We can conclude that most folks here are sure that the Rolls-Royce AE 2100D, spinning a Dowty R391 prop, will provide just enough power for a .40 size 3D plane...[:'(]
Seriously; there is absolutely no need and no advantage, in installing a heavy .91 engine in a .40 model. You are all wrong!
It will not fly as intended, or as gracefully, as it would with a .40-.55 engine.
It will also land like an anchor; not like an eagle...
Why don't all of you guys opt to install a 16,000 HP marine Diesel, in your next family car? Good idea, no!?
The question was regarding the replacement of the ST .51 with an OS.55AX, for a little extra power (POOWWWAAAHHH)... Not getting unlimited vertical performance, with the engine idling...