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What prop for my ST G51 engine.

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What prop for my ST G51 engine.

Old 08-08-2004, 08:06 AM
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Default What prop for my ST G51 engine.

I plan on using a ST G51 engine in a 5 lb. profile model. What size prop do you suggest and what rpm should I expect.
Old 08-08-2004, 01:45 PM
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Default RE: What prop for my ST G51 engine.

APC 12x4
Old 08-09-2004, 07:52 AM
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Default RE: What prop for my ST G51 engine.

I would also try a 11x4. Mine didn't like the 12x4. Had more vertical w/11x4.
Old 08-09-2004, 08:37 AM
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Default RE: What prop for my ST G51 engine.

Which brand 11x4 did you use.
Old 08-09-2004, 08:39 AM
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Default RE: What prop for my ST G51 engine.

APC
Old 08-09-2004, 10:33 AM
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Default RE: What prop for my ST G51 engine.

I run 11x4 apc on my st 45 getting around 13200 rpm's. with mcp getting over 14,000.
Old 08-09-2004, 08:43 PM
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Default RE: What prop for my ST G51 engine.

Tried a APC 12x4 and at 12,500 it felt good, would easily fly out of my hand. A TF Power Point 11x4 gave more rpm but less pull, seems a bit too small for the engine as the 51's are not screamers.
Old 08-10-2004, 11:35 AM
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Default RE: What prop for my ST G51 engine.

Don't forget the APC 12.25-3.75, I see a lot of these around here on .46 to .50 sized engines.

RJ
Old 08-10-2004, 04:11 PM
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Default RE: What prop for my ST G51 engine.

MA 12x4, my Hard Bet aceelerates nice out of tail slides.

Mike

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