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Old 10-05-2006, 04:53 PM
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MJD
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Default RE: Weston Magnum R. Engine question

ORIGINAL: Razor-RCU

Good to see this thread re-animated!

I just finished mine with the West-50, and I am waiting for the maiden flight...

I figured on starting with a 9x7 APC- Should I assume the thrust will be fine for the hand-launch? I WILL have someone throwing it for me...

Cheers!
Should be just fine, but in deference to the engine, personally I would go with the 9-6. IIRC the 9-7 is either the maximum load you should hang on that engine, or a bit too much. I have not used a 9-7, only 9-6, but can say the engine seems very content on that prop. Not suire if you'd be off the pipe with the 9-7. Running in a fat 2 cycle it makes 18.2- 18.3k, once leaned out a bit better yet, and static thrust is very high making for easy launches. Vertical is out of this world, it doesn't seem to slow down at all. It is the Weston recommended test flight and run-in prop.

MJD