who's flying with Enya 61CX ?

How many people are using the Enya 61CX and what has been your flying experience with it?

There was some one at Brodaks with one, flying a big profile, so I heard. Unfortunately I didn't have the opportunity to see it working there.

I did just a few test flights with it using a larger venturi, 8.0mm one, and the engine ran well the Bolly 13x4.5 but it felt it need a little more pitch on the prop, then we used a Zinger 13x6 but we had to run the engine too rich, it acctually worked like an Fox 35 with a very distinct 4-2-4. I put this flight online http://www.youtube.com/watch?v=9G48BxBo2Nw

Noticed on the wingover how the plane slowed down and then accelerate again, the engine almost quit there because it was running sooooo rich hehe.

Of course we would have a much better run with a smaller venturi. This plane belong to a friend and he had different power plant plans for it. But at least we saw that even with the large venturi this engine did not run away, it worked well at high rpms with the Bolly and very rich with the Zinger.

Please let us know how yours are running.

Martin

Saw the video. What a luxury circle you have!!! Wow.

On your question: I fly the Enya 61CXS, you already know it. It is a good and reliable engine. I never used any other prop than the 13x5 UC Brian Eather 2-blade. The engine likes this prop so I never tested anything else.
On 5% nitro my fuel consumption is low, around 130 ccm/flight. Still the needle setting is very stable, however, in heat I have to close the needle.
There are no signs of overheating or run away though the engine has no ring. It starts well when hot, just like a ringed engine and has so far been one of the most user friendly motors I ever flew. Again, as user-friendly as an OS 46 LA.

I have now 90 flights on it and will use it in France this year on the WC.

If you like it then continue using it, regardless of other people experiences

Christoph Holtermann, Germany

Thank you Christoph, This is a new field that opened up a few months ago near by. I am so lucky, there are 5 great fields within 50min from home.

I know there are more people using this engine out there, it would be great to know who they are, what they are flying and how they are setting'em up.

I bet this engine will be one of those that will be famous for C/L, it is just a question of time.

Good luck in France my friend!


Martin

Hey Martin:
Did you see the write ups in the Product Review section..
One by Cowboystunt and another by E167.

Allan Perret

I have one in a Score. Only a half dozen flights but very promising so far. Using a 12 x 5 Zinger Pro, Sig 10-10-10 fuel with a little extra castor to bring it to about 22% oil just out of caution. Put 75 minutes of bench time on it before putting it into the air. Launch around 9400 revs. Runs a subtle 4-2-4, more of a continuous wet 2-stroke. This engine dropped into the mounting holes for the ST51 I had been using. Minor changes to the cowl was all the change needed. Using Randy Smith tube muffler. I will be experimenting with props, hopefully this weekend. My guess is it will like a 13 x 4 3-blade, or thereabouts. Model is fairly heavy, 67 oz.

>I have one in a Score. Only a half dozen flights but very
>promising so far. Using a 12 x 5 Zinger Pro, Sig 10-10-10 fuel
>with a little extra castor to bring it to about 22% oil just
>out of caution. Put 75 minutes of bench time on it before
>putting it into the air. Launch around 9400 revs. Runs a
>subtle 4-2-4, more of a continuous wet 2-stroke. This engine
>dropped into the mounting holes for the ST51 I had been using.
>Minor changes to the cowl was all the change needed. Using
>Randy Smith tube muffler. I will be experimenting with props,
>hopefully this weekend. My guess is it will like a 13 x 4
>3-blade, or thereabouts. Model is fairly heavy, 67 oz.



The 61CX comes with a 7.5mm venturi and for using with a 13" size prop I thing opening it a bit would get a better 4-2-4 and more power.


I used the 8mm venturi and that was too much for the Zinger 13x5 and 13x6 we tried, engine had to run to rich, but did a very distinct 4-2-4. Our field is at 2100' MSL

If you try the Bolly 13x4.5 3 blade with the stock venturi, I am afraid it will not get in the RPM you'll need, if not try the 8mm ventury, and perhaps you'll need ad a tad more pitch to the prop.


Martin

Several more flights today with the same setup, 12 x 5 wood Zinger Pro in the Score. I have to say it seems pretty happy with this combination. Good appropriate lap times (or more to the point appropriate airspeed) on 65' eye-to-eye Tom Morris lines. My field is at sea level (and indeed only about 50' FROM the sea). Conditions around 70 F and low humidity, typical Northern California. Very little noticeable break, if any. Which is how I like it. Very good power on the up lines like into wingover. No problems at all so far with this engine.

Maybe even more interesting was Larry Wong (on his birthday no less) putting up several flights on own-design electric powered Seraphim, about a 600 inch model. This sure looks like the way of the future, quiet, no mess, each "engine run" just like the last. No wasted time and fuel due to a slightly mis-needled engine. A little odd to see no oil smoke trail, though. Next is to put a pusher APC on it and run the motor in the opposite direction to use torque to keep it out on the lines!

Mike,

I think some people will be more intersted now in this engine knowing that they can easyly replace their ST 51

Are you burning more fuel or about the same as the ST 51 you had before?


Martin

Fuel consumption is about the same as the ST51, 5 oz for 6 minutes run time. (Not sure how that translates into metric units.) This is in dry, warm, sea level air. I expect fuel economy will improve as I get more time on the engine.

By the way I have no complaints about the ST51 either, a fine engine at a modest price. Mine has a Bowman ring and some other mods. Not a huge difference with the Enya 61, but it is better and I find the Enya easier to start. First flip if primed right. The Enya is also a bargain for such a quality piece. Randy Smith now handles them, though mine came from Ken Enya directly.

I use mostly Enya engines

this is my CAP look-alike, call it 20 or 21

Enya 61 CX unchanged out of box
Plane is based on Legacy wing
weight around 68 ounces
Tom Morris full take-apart construction
12 x 6 black Master prop
Fuel 10% nitro 10% castor 10% synthetic
65' x 018 lines
flies the pattern comfortably in wind
with a fast 2 stroke
Love Enya engines, they fly my heavy planes well !

Vincent

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Hi Vincent,

wow another one, you must have an airforce up there!

You have a Trivial Pursuit with an Enya 61CX as well don't ya?

I also feel that Enyas are stronger then others brands and more reliable too. After finding out that Enya had parts for my old engines I got really hooked on the Enya brand.


Martin

>Hi Vincent,
>
>wow another one, you must have an airforce up there!
>
>You have a Trivial Pursuit with an Enya 61CX as well don't
>ya?
>NOT NOW MARTIN, FRAID IT WAS UNDERBUILT,CONTROLS PULLED
OUT OF THE INSIDE WING.......IN FLIGHT, SOB,SOB
>I also feel that Enyas are stronger then others brands and
>more reliable too. After finding out that Enya had parts for
>my old engines I got really hooked on the Enya brand.
>
>
>Martin
>