RCU Forums - View Single Post - trying to decied on engine for tower trainer 40
Old 05-04-2008 | 10:17 AM
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Cyclic Hardover
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From: New Mexico,
Default RE: trying to decied on engine for tower trainer 40


ORIGINAL: jentzsch

My top choices are: (not in any order)

1) O.S. .40 FX
2) Thunder Tiger PRO 46 BB ABC
3) O.S. .46 FX
4) Magnum XLS-46 BB ABC
5) O.S. .46 AX

What do you guys think and why?

Thank you.

I see your in Utah. Riverton seems to be around 4500ft. Elevation plays a big part in this stuff. Now your not obligated here but these are just thoughts of what many do around New Mexico

There is an approximate 3% loss of power or performance for every 1000ft elevation. You install a 40 in your trainer and you'll have a flying POS. Don't go less than a 46. Also when choosing engines inthe future. Most planes have recommended engines sizes. Go with the larger of what is recommended.

Example of a 60-90 size engines are mainly the same casing size. I go with 90's. Nothing like spending $300 on an engine and be disappointed and thenstuck with it. With your altitude, you always need to consider the better of the choice