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Old Nov 29, 2004, 11:58 PM
mikekosatka is offline
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airplane engine vs. helicopter


Is there any real difference between a helicopter engine and the same size motor used in a r/c airplane?
Mike
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Old Nov 30, 2004, 02:24 AM
Flying Weasle is offline
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The size of the head.
You SHOULD NOT use a plane engine on a heli (overheating problems) but, you can use a heli engine on a plane if it's inside a cowling. If it's out in the open with the prop wash it really won't heat up to proper operating temps. But, it can be done.
Old Nov 30, 2004, 03:51 AM
russern is offline
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the heli engine also has more power, and torque. it is accually more like a rc car engine, than a rc plane engine, but the torque is higher
Old Nov 30, 2004, 01:36 PM
Paul Susbauer is offline
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Most heli engines are ringed engines as well. Not many ringed plane engines left anymore.

--Paul
Old Nov 30, 2004, 11:12 PM
rcsoar4fun is offline
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The carbs are also different. A heli engine spends a lot more time at 75% throttle than an airplane engine. If I had to bet I would guess the timing is a bit different as well.

Kristopher
Old Dec 02, 2008, 06:07 AM
UNGAB is offline
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PLEASE I NEED TO KNOW THE variation IN THEIR COMPONENTS ie the structural difference and the
Old Dec 02, 2008, 06:14 AM
UNGAB is offline
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pls does anyone know the difference between the engine components of airplane helicopters and automobiles?
Old Dec 02, 2008, 08:48 AM
barracudahockey is online now
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The helicopter engine has a bigger heat sink, usually a carb optimized for mid range, and most importantly, a shorter crank shaft.
Old Dec 02, 2008, 02:19 PM
Pinecone is offline
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And they tend to run at higher RPM. So timing is different. Heli engines run in the 17,000 RPM range.
Old Dec 07, 2008, 02:18 PM
DarkHeli is offline
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oil + its lubrication is different.
Old Dec 08, 2008, 05:28 AM
Pinecone is offline
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The extra oil used is due to the generally higher power settings used in helis.

But Cool Power 15% Aircraft and Heli are the same fuel, same oil content.
Old Dec 10, 2008, 07:53 AM
GunnyGlow is offline
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piro-maniac........
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Quote:
Originally Posted by Pinecone
The extra oil used is due to the generally higher power settings used in helis.

But Cool Power 15% Aircraft and Heli are the same fuel, same oil content.
But do they taste the same??!!
Old Dec 10, 2008, 01:39 PM
Pinecone is offline
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Yeap.
Old Dec 14, 2008, 04:37 PM
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The extra oil is due to the fact they are at the mercy of the efficency of the cooling shroud and fan and not hanging out in the airstream being cooled by prop wash for the most part. Most heli engine manufacturers reccomend 18 percent oil.
Old Feb 02, 2009, 05:06 AM
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SO, on a scale of 1-10. with one being snap-in-and-go, and ten being impossible. How hard would it be to take a "Traxxis TRX .15 pro" engine, and put it in a similarly sized heli. Also consider we may have stuff like a CNC machine, expensive measuring tools, and engineering experience. And we were not afraid to mod the aircraft and/or engine.

I only ask because I have this engine (as you might have guessed) and I am considering getting a heli if the price is right. And being able to do this "conversion" could save me lots of cash. But it may be more expensive to do then just buying an engine.

Here is the engine

http://www.traxxas.com/products/nitr...x_trx15pro.htm


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