OS Wankel engines

corsair167 · 09:17 AM

I purchased a great twin and it has Wankel engines installed. Previously flown, it is a great flier and I know NOTHING about Wankels. What do I need to know for careing for them?

Wing & Prayer · Dec 08, 2012, 04:40 PM

Nice engines. Powerful and heavy. Uses a lot of fuel, wet running. do not over or under prop.
Very quiet little or no vibration. My experience is from running one on a arf designed for a .46. Long takeoff run but when in the air power and speed to spare. Really like it!
Joe

corsair167 · Dec 09, 2012, 09:37 PM

The twin I purchased has twin OS wankel engines with 3 blade props and flies FAST.......this owner also flies turbines

Dave Campbell · Dec 19, 2012, 01:07 AM

These engines are revvers.... Mine liked the Graupner 8-6 3 blade a lot, but anything in that range should be good. A 10-4 will overheat the engine, from memory. You definitely won't confuse it for a 4 stroke... Really neat engines!

ahicks · Dec 19, 2012, 08:07 AM

That was my experience as well. It acts similar to a .25 (maybe a 32?) from a power and proping perspective. I still have one, but it hasn't flown in 20 years or more....

Dec 08, 2012, 09:16 AM	#1
corsair167 Registered User USA, IN, Seymour Joined Oct 2009 183 Posts	OS Wankel engines I purchased a great twin and it has Wankel engines installed. Previously flown, it is a great flier and I know NOTHING about Wankels. What do I need to know for careing for them?
	Last edited by corsair167; Dec 08, 2012 at 09:17 AM. Reason: grammer

Dec 09, 2012, 09:37 PM	#3
corsair167 Registered User USA, IN, Seymour Joined Oct 2009 183 Posts	Wankel engines The twin I purchased has twin OS wankel engines with 3 blade props and flies FAST.......this owner also flies turbines

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Dec 08, 2012, 04:40 PM	#2
Wing & Prayer Navy Retired Dixfield, Maine Joined Apr 2008 8 Posts	Nice engines. Powerful and heavy. Uses a lot of fuel, wet running. do not over or under prop. Very quiet little or no vibration. My experience is from running one on a arf designed for a .46. Long takeoff run but when in the air power and speed to spare. Really like it! Joe

Dec 19, 2012, 01:07 AM	#4
Dave Campbell Registered User Westland (Detroit), MI USA Joined Dec 2000 1,236 Posts	These engines are revvers.... Mine liked the Graupner 8-6 3 blade a lot, but anything in that range should be good. A 10-4 will overheat the engine, from memory. You definitely won't confuse it for a 4 stroke... Really neat engines!

Dec 19, 2012, 08:07 AM	#5
ahicks Registered User United States, MI, Waterford Township Joined Aug 2008 520 Posts	That was my experience as well. It acts similar to a .25 (maybe a 32?) from a power and proping perspective. I still have one, but it hasn't flown in 20 years or more....