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Old 08-24-2009 | 08:57 AM
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Nathan King
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Default RE: Replacing a 46 ax with 4 stroke
ORIGINAL: ChuckW

If you can still find one, a YS-63 will fly that plane as well or better than the .46 2-stroke and still be lightweight. It is being replaced by the YS-70 however which of course would be even better.

Beyond that, any good .70-.82 4-stroke will be excellent. If you can find a discontinued OS .70 Surpass-2 it would be a great choice. There new ones would be too.
That's a heck of a lot of power for a 40 sized airframe. May I suggest model rocketry?

I'd personally go with a Saito 56 and be done with it.
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