"wankle" rotary

captn kev · 05-30-2008, 06:23 AM

Found this @ http://bd5.com/forsale.htm
I cant move the photos
very neat but wont cool and the price?
Any ideas from here re the manufacturer.

For Sale: Wankel Rotary Engine for BD-5. The 814 Wankle is a twin rotor, charge cooled rotary engine. It weighs about 115# with alternator, muffler and ECU. It produces 75HP @ 6000 RPM. It runs real hot, and I was unable to cool it with the radiator size and airflow constraints in my BD-5. I did fly it for short flights. I mounted the wankle on hard rubber pads using the steel mounts shown in the pictures, which are included. I am still using the radiator in my BD-5 which has a core area of about 100 Sq inches. It is 2" thick and I estimate it would need to be about double in size. I will include a Micro Tach. Price is $8,000. I live 75 miles N of Seattle, 360-856-0332 Email Davidmischke@verizon.net (5/12/08)

My5ABaby · 05-30-2008, 06:27 AM

Cool find.

Quote:

It runs real hot, and I was unable to cool it with the radiator size and airflow constraints in my BD-5.

That would make me wary to buy it...

captn kev · 05-30-2008, 06:34 AM

As a BD5 owner myself, you have to understand that logical buying decisions are not part of the mind set

My5ABaby · 05-30-2008, 06:54 AM

Quote:

Originally Posted by captn kev

As a BD5 owner myself, you have to understand that logical buying decisions are not part of the mind set

Lol. Are there rebuild kits available? I see the mention of heat as a possible blown engine.

My5ABaby · 05-30-2008, 06:55 AM

I found this website about his plane/engine: http://www.geocities.com/eaa818/dmischkebd5.html

Barn Dirt · 05-30-2008, 08:31 AM

LOL, you WOULD find something like this, wouldn't you? :P

Phoenix7 · 06-03-2008, 07:48 PM

Quote:

Originally Posted by My5ABaby

I found this website about his plane/engine: http://www.geocities.com/eaa818/dmischkebd5.html

Quote:

11Feb2008 - UPDATE

I now have a rotary engine installed and running in my BD-5. It runs really hot. The stainless steel exhaust stacks glow bright red and the temp probe in the muffler reads 1300 F for short runs. However, SS 321 should be good for 1700 F, so I should be OK. The engine is throttle body fuel injected and has a dual electronic ignition system. It burns a mix of gas and 2 stroke oil, which is used to lubricate and cool the rotor and bearings before going into the combustion chamber; there is no seperate oil system. Timeing is computer controlled. I built the muffler and exhaust system to fit within the confines of the BD engine compartment. I used 321 Stainless Steel that can withstand the 1500 F that I expect for continuous operations. The engine couples to the standard BD-5 drive system. Engine RPM is reduced by pullys and a cog belt, 1.6 to 1, going to the drive shaft and prop. I have switched to the rotary hopeing for a smoother, more powerful and more reliable engine. We shall see. Stay tuned....

8May2008 - UPDATE
I tried to cool the 814 Wankle by recoreing the radiator and improving the airflow, but that was not enough. I would have to install a much larger radiator and make significiant changes to the existing airframe. I was able to get in some short flights with the Wankle and enjoyed the acceleration and smoothness. But short flights were not the plan, so I have pulled the Wankle and reinstalled the 3701 Hirth. I am going to sell the Wankle. If interested, check the Classified page

I guess he's limited to a certain size radiator in that tiny plane.

captn kev · 06-04-2008, 05:52 AM

Quote:

Originally Posted by phoenix7

I guess he's limited to a certain size radiator in that tiny plane.

Oh for sure this aircraft was originaly designed for an aircooled Polaris engine.
After that didnt work a Hirth aircooled was tried
After that didnt work a Zenoa aircooled was tried
after that didnt work ect *&^#
In the end the best but less than cost effective was a Turbine GPU from helicopters or a 2 stroke water cooled rotax.the hunt still goes on.

05-30-2008, 06:23 AM	#1
captn kev senior car dude Join Date: Apr 2008 Posts: 44 Rep Power: 0	"wankle" rotary Found this @ http://bd5.com/forsale.htm I cant move the photos very neat but wont cool and the price? Any ideas from here re the manufacturer. For Sale: Wankel Rotary Engine for BD-5. The 814 Wankle is a twin rotor, charge cooled rotary engine. It weighs about 115# with alternator, muffler and ECU. It produces 75HP @ 6000 RPM. It runs real hot, and I was unable to cool it with the radiator size and airflow constraints in my BD-5. I did fly it for short flights. I mounted the wankle on hard rubber pads using the steel mounts shown in the pictures, which are included. I am still using the radiator in my BD-5 which has a core area of about 100 Sq inches. It is 2" thick and I estimate it would need to be about double in size. I will include a Micro Tach. Price is $8,000. I live 75 miles N of Seattle, 360-856-0332 Email Davidmischke@verizon.net (5/12/08) __________________ TORYU

05-30-2008, 06:34 AM	#3
captn kev senior car dude Join Date: Apr 2008 Posts: 44 Rep Power: 0	As a BD5 owner myself, you have to understand that logical buying decisions are not part of the mind set __________________ TORYU

05-30-2008, 06:55 AM	#5
My5ABaby Sigh..... Join Date: Feb 2008 Location: Murfreesboro, TN Posts: 2,377 Rep Power: 20	I found this website about his plane/engine: http://www.geocities.com/eaa818/dmischkebd5.html __________________ 1986 Sport: 132k miles, 5A (Sapphire Blue Metallic), Tokico Blues, Racing Beat Springs, Custom LED tailights (only S4 LED tails in the world), SSR Mark II, Racing Beat exhaust, S5 black interior, Rotary Resurrection rebuild at 120k miles Community Service Manual RotorWiki "Imagination costs nothing; we could build square locomotives or fly to Mars" - Felix Wankel Yesterday is history, tomorrow is a mystery, but today is a gift. That is why it is called the "present."

05-30-2008, 08:31 AM	#6
Barn Dirt The Newbie Join Date: Apr 2008 Location: Ontario Posts: 19 Rep Power: 0	LOL, you WOULD find something like this, wouldn't you? :P