ORIGINAL: SpinnerRow
ORIGINAL: DarZeelon
OK, OK, we are way off subject here.
We can conclude that most folks here are sure that the Rolls-Royce 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...
Yea, I've been sidetracked a bit with the .90 on a .40 plane but I'm liking it! I agree, it won't fly as intended but that is pretty much the point. My .19-.25 sized little stick with a G-51 and pipe/header flies nothing like a Little Stick did in the 70s and it still lands at a crawl. Besides, the Ultra Stick has flaps! I let another guy at the field fly my little stick and he said he has to have one. Only the purists don't seem to "get it". Don't knock it until you've tried it!
The Rolls-Royce combo sounds wicked by the way! Have no idea what it is but it sounds wicked!
Jay Leno has a Merlin V12 in an old Standley Steamer. There is excess everywhere!!!!!! If I had the money, none of my cars would have the stock motor in them. They would all be filled with excessive motors. Too much is just right!
I once saw a Suzuki Samurai at the drag strip with a 632ci big block Chevy in it. It was cool!
One last comment. If you just have to fly a Super Tigre .90, look around on the various auction sites for a NIBST .90K. It has a two piece block instead of the one piece block of the G90, which is a fine engine itself. The thing is, the S.90K is more powerful than the G90. Why Super Tigre would bring out the G90 to replace the S90K, which produces more power, is a mystery to me. Of course, they went out of business a short time later, so it may have been the same logic involved.
Ed Cregger