combs1

Can anyone tell me if you can or can't use a heli engine in a plane? Just wondering. I have one setting around and thought I might try it in a plane.

R. C. Day

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Combs 1,

Yes it will work, the engine most likely won't like being cowled in, overheating may be an issue.

R. C.

combs1

Thanks for the info. The plane I was going to try it in is scratch built Hawker Sea Fury. The cowl is very large with lots of space in front for air intake. I built the scale exhaust openings to let the air pass through the cowl.

blvdbuzzard

I would think that with more cooling fins and a larger head it would not mind being in a cowl. It might not come up to temp. with all of the air flow.

I had a car engine in a plane. It fraged after a little while. The piston was scored anf the con rod broke. The top of the liner had the chrome worn off. It did not get hot enough to allow for expansion.

I am running a ST 34H in a 20 size plane now for a little over two gallons of fuel with no problems.

Dru.

Cactus.

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a friend has a heli irvine 36 in his supra, with the heli head, no cowl, it has 2k over a normal irvine and gos like stink. only problem is the prop and spinner thickness on the shorter shaft

greenboot

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I'm using an OS32sxh in my 4-Star. It makes a great plank engine after serving hard time in a Concept 30.

Tom

smchale

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combs1,
take a cruise on over to the pattern threads....i think those guys over there have a few postings on heli engines and fuels in there a/c.

HITNDIRT

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I used an os 61sx in a fantrainer. chose it because the heli engines are usually higher performance than the plane engines.
Aka: thr heli went to 18,000 over the planes 16,000 rated
and never had problem.

Jemo

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I have been putting Heli engines on planes for years.
Put it in anyway you want. Provide cooling the same way you would with any engine.

Heli engines are the same as non heli, the difference is the heat sink head, and many times the main shaft is shorter.

I can tell you this........ The engine will not know where it is...