ORIGINAL: Sourkraut
Murdoc,
The GMS .47 is a very powerful engine for its displacement. My son has one on his Hanger 9 .46 size Harrier and with a 12X4 APC prop it will pull it vertical till out of site. Hovering with it is no problem at all. He also has an OS .46 AX and an OS .46 FX and the GMS will out pull both of those engines easily on the same size props. Just be aware that the engine does require a proper break in period and it can be cranky till broken in fully. It isn't as user friendly right out of the box the way OS engines can be but once broken in it will out run and out last the OS engines in its size class.
AMEN to that brother!!
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I received my 61 Evolution today.
I set in a stand and put that in a vice.
No problem starting.
I used a 14x5 prop to load it down a bit and I used a full quart of fuel to run it in.
It's idling nice and smooth and my TAC was showing close to 18,000 RPM
Now i'm waiting for the Tower hobby 60 MK III with an OS 65LA engine.
I want to compare the two different engines.
That trainer has semi symmetrical type of wing so it should fly nice.
I have already ordered that and the [parts needed to converted to a tail dragger.
Vegas/