Enya 29, 35 for Stunt

I have a pair of Enya plain bushing baffle pistoned engines that I am considering putting to work on (re)learn-to-fly-stunt airplanes. The .35 is a square-venturi version III with r/c carburetor, although some years ago I found some NOS venturis and a K&B needlevalve assembly for it, and the .29 is a round-venturi R/C version I put a couple of hours on a long time ago in r/c. I have spoken with GMA about retiming (raising the intake port) these for Stunt use. The price for milling the cylinders is very reasonable and I suspect I can scare up a needle valve and venturi for the .29 pretty readily. My question: worth the trouble? I know Enya's are the next best thing to perpetual motion when they are cared for, but do I stand a chance of having these perform decently enough so that I can get on with the job of (re)learning to fly c/l stunt?

Thanks very much

PeterH --

If you haven't done so, click on the "Search" icon and look for "Enya". There were a couple of threads as I recall. Add that base info to the knowledgeable answers you will get here!

They are a little heavy. They are a little less powerful. But they can be adapted into a good stunt type engine for sport use. Just balance the cost you will have in it with the cost of a comparable or better engine, less what you could get for those if you sold them. Sometimes people prefer engines they have to engines they dont have.

Were I in your situation, I think I would build a Twister or Profile Oriental, bolt on an Enya with one of your RC tanks, put a 10 x 5 or 11 x 5 on it, set it for a rich two cycle and go fly. If I got to the point that I felt that the airplane and engine were holding me back, then I'd start getting the latest stuff (a four-stroke diesel with a variable length pipe?) and building better airplanes.

>Were I in your situation, I think I would build a
>Twister or Profile Oriental, set it for a rich
>two cycle and go fly.

Personally, my opinion if he's going to use the vintage Enya 29, stick with Banshee/Twister size stuff, or smaller, in profiles. Getting up in the bigger sizes, such as the Oriental's, with a .29, he needs to be able to fly a LIGHT version, which is possible with a built-up fuselage, but difficult with a profile.

> ... start getting the latest stuff (a four-stroke
>diesel with a variable length pipe?)

And, of course, you mean an in-flight-variable length, right?

K.

These engines work fine for general sport flying. But set them at a rich 2 cycle. Don't try to run them as you would a Fox.

The added weight usually isn't a problem. And make sure that there's at least some break in before hand. Yes, it takse some time with an Enya. Currell

I flew both Enya 29 and 35 in stunt planes some decades ago. As Currell says, these engines should be set at a rich 2-cycle. Properly broken-in,their performance is very satisfactory in any model with a wing area around 500 sq in.

jmh

Yes, but don't put one on a Banshee with the standard nose length unless you want to add almost four ounces of weight to the tail!!

Old Sourdough