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In America maybe,but here it is still the Lycoming.Some Ultralights are using a converted Subaru engine or the Rotax.

By the way the engine of choice for light aircraft is the rotor. The 13B mazda wankel design. Theyve been proven to be more cost effective and reliable than the 4 times more expensive light aircraft piston engines.

When people bag the rotor they have no idea and just go on by their mates tales who had a rotor rebuilt with second hand seals and shortcuts left right and centre like as expected in lazy 99% Australian workshops.
As it is possible to just spend a few bucks and get them going for beyond the warranty period as many workshops do and call them a refresh. Then these people who pay from 1500au-2500au expect it to be reliable. Rotors have won many endurance races to be banned at bathurst by the v8 camp since 1983. They ran the weird bridge porting cause Peripheral porting has been banned in almost all forms of racing.

Check out and its links:

http://www.monito.com/wankel/wankel.html

The aircraft motor gurus know their stuff and are more thorough than we auto guys. The worst that can happen to us is the car stops and we can walk or taxi home.

Dodgeman, thanks for more fully answering the question "whats a rotary?". I enjoy learning about engines of all types.

More funny stories are avaliable on purchase of

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Ummm, the title of the post was framed as a question. I provided an answer that makes the point that the description of "rotary engine" was used a long time ago, & the Mazda / Wankel design does not have a monopoly on the use of that name or description. Net result,... there are those who's fund of automotive / mechanical knowledge has been increased by learning something that they didn't know before. I have the e-mails to tell me that.

As for picking, for the purpose of finding tiny little faults, you got the wrong man. Just look at a nearby post for a good example of nit picking. Then re-read what i ACTUALLY wrote.

How much have you been drinking anyway?

I agree with the phunk dok here. There is no need to go picking into people's questions to find tiny little faults.

If you wanna be a smartarse at least be funny about it.

Hey, who else is drunk tonight????????

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No, sorry this is the subject.

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This is the question.
Note" 1200 coupe with a 13B extended port"
Given benifit of doubt as maybe you were unsure. But 13B is a mazda engine.
And 1200's dont have propellers.

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this means godabaute has limited knowledge of this engine, so it is asked to not make it confusing.

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Really means something you should be asking yourself.

And just to help you out abit dictionary meanings;

Point (point) n. gist of argument; striking or effective part of speech, story, etc; purpose.

Now (nou) adv. at this present time; conj. this being the case.

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The question was "Mummy, what's a rotary?" [engine]
Now you know. The rotary engine was a dead end design with limited applications, but it was built in large numbers, it was used by all the major combatants in the Great War & some still fly today. It has a history that goes back almost a hundred years.
The assumption that Mazda / Wankel have a monopoly on the title "rotary" for an engine design is a myth.

The question that was actually asked, was answered. You got the point now?

exactly, so its not even worth it to get a bodgy engineers certificate. Cause if the time comes the engineer wont care, its not his problem, he just says he never certified it that way

Yeah ill get John Otter to take a look at it for me. I have a distant distant distant distant distant relative who is a mechanical engineer maybe he could dodgy up a certificate for me. I need to get it all legal cause IF i crash and take someone out i dont want a new boyfriend named bubba.