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Post  getback Sun Aug 10, 2014 5:37 pm

I took tis engine off a plane I scratch built years ago ......soaked it alittle carb. sprayed the venture, tooke the cly. sleeve out she was not in bad shape just cleaning  was / good enough /opened the hole in the NV .... anyway mounted the thing ran it .15% omega 7x4 old prop..9.8 was all I could get the needle is a real work of art I think 7-8 rounds and it would be in your hand   Very Happy  Getback Very Happy Beer Cheers      
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Post  Oldenginerod Sat Aug 16, 2014 3:24 am

Enya .09 is my all time favorite. Strong, easy to start, virtually indestructible. Enya only recommend 5% nitro and with a cast iron piston, high castor is essential. 7X4 should be about right, but stick a 7X3 on it & you won't believe the difference, assuming it's broken-in. Shouldn't have any problem pulling 13-14K out of it. Enyas take forever to break-in. Use a hot plug. Long will work well but the original Enya plug is about halfway between a long and a short. They make the best plugs ever- never burned one out. Chasing the needle around was probably caused by the engine cleaning itself out. Run a couple of tanks through it and see how it improves. It should really break into a harsh barking peak. Back in my flying (teenage) days I didn't know anything about breaking in or running rich to preserve the engine. Bought a brand new Enya .15, bolted it to a plane, filled it with whatever fuel I had on hand, peaked it out as fast as I could and flew it. Didn't seem to do it any harm.
Stick with it. I'm sure it will be a great engine for you.
Oh, just make sure you have the cylinder and piston around the right way- baffle away from the exhaust, closest to the by-pass port.

Rod.
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Post  Surfer_kris Sat Aug 16, 2014 9:16 am

It sounds a bit weak to me, are you sure there is enough castor in that fuel? These are old-school lapped engines that need 20-25% all castor in order to work well.

What plug do you have in it, it doesn't look like an Enya one?
Try an Enya 3 or 4, or even an OS#8, they are both medium reach ones.

On the Enya .09 IV (RC) I'm getting about 14500rpm on a 7x4 and 13500 on a 7x5 (with the stock muffler on). The 7x3 is not enough load for these engines I think. The 8x3 is a good match though if you have the right plane for it.

Here is a "Topstick" where the Enya 09 has been working well;

1970's enya 09 rerun after yrs. Img_0910
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Post  getback Sat Aug 16, 2014 1:21 pm

Yea I thought 9.8 was low this engine has probably only got 30 min. max run in , Rod you can only put the liner in one way and fix it to were the exh. port is equally spacing ? Kris the same fuel 15% omega 17 % // 30castor / 70synthe. I still just don't have a 8" prop. you think I should add alittle more castor to it? (ilooked up the spec.s and I should be getting 13.5 or so out of it Eric Very Happy 
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Post  Surfer_kris Sat Aug 16, 2014 2:55 pm

I prefer straight castor, but if you add some more castor to the fuel it might be okey. The nitro will drop too, but around 10% will be fine.
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Post  GallopingGhostler Wed Aug 27, 2014 6:22 am

@getback wrote:I took tis engine off a plane I scratch built years ago ......soaked it alittle carb. sprayed the venture, tooke the cly. sleeve out she was not in bad shape just cleaning  was / good enough /opened the hole in the NV .... anyway mounted the thing ran it .15% omega 7x4 old prop..9.8 was all I could get the needle is a real work of art I think 7-8 rounds and it would be in your hand   Very Happy  Getback Very Happy Beer Cheers      
Engine you have is a mid 1960's Enya 09-III. Peter Chinn had a positive report on it. Sceptre Flight: Enya 09-III CL & 09-III RC Test

@getback wrote:Yea I thought 9.8 was low this engine has probably only got 30 min. max run in , Rod you can only put the liner in one way and fix it to were the exh. port is equally spacing ? Kris the same fuel 15% omega 17 % // 30castor / 70synthe. I still just don't have a 8" prop. you think I should add a little more castor to it? (ilooked up the spec.s and I should be getting 13.5 or so out of it Eric Very Happy

13.5K RPM on a 7x4 is a little high. My observations follow with Peter's, the Enya 09-III has strong torque at lower RPM's than your modern Schneurles. Peter obtained 12.6k RPM with a Tornado 7x4 nylon. Running of lesser props are of no advantage as they put the Enya beyond its optimal torque curve. I had best luck with a Top Flite wood 7x6 prop. I run them at higher nitro of 15% at this 4,300 feet elevation and it does fine. On a 7x3 prop, it ran so .049 like, confirming Peter Chinn's test observations. Also, using the lower inertia wood props made hand starting easier, needle was less fussy.

As a minimum I'd add at least 6 oz Castor to a gallon of your modern 18% oil with touch Castor fuels to up the oil content to 22% to help protect the iron piston in a steel sleeve technology and guard against lean runs. Treated well, these old Enya's perform well with the modern plain bearing sport Schneurles when properly propped and are long wearing.
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Post  Surfer_kris Wed Aug 27, 2014 6:53 am

I don't know what you mean with optimum torque?
Maximum torque is found well below 10000rpm and max power is made around 16000-18000rpm, depending on intake area (with or without restrictor) and fuel (5-30% nitro), see picture below.

I don't have my notes for the Enya III, but the numbers I gave earlier for the Enya IV model are easily obtained even with the stock muffler on.

1970's enya 09 rerun after yrs. Scan1010
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Post  GallopingGhostler Wed Aug 27, 2014 7:35 am

Looking at the power curves for the Enya 09-III, torque falls off rapidly at the higher RPMs. Power is depended upon both the horsepower and torque curves. This is why props smaller than 7x4 are of no use as Enya can't spin them at an RPM to provide optimal output, like the Schneurles do.

Following is from the article link in my earlier post:

Peter Chinn wrote:Using a mild (5 percent nitromethane) R/C blend of fuel, we obtained the following maximum/minimum rpm on various props: 8100/2600 on a 10x3-1/2 Top-Flite wood, 8400/2700 on a 9x4 Top-Flite nylon, 10,250/2900 on a 8x5 Power-Prop, 10,400/300 on a 8x4 Tornado nylon, 12,000/3300 on an 8x4 Power-Prop and 12,600/3600 on a 7x4 Tornado nylon. We also tested the engine on smaller props but there is little point in using these on the 09-III TV since this engine will then be running beyond the peak of its power curve in the air.

The later Enya 09-IV is a touch more powerful than the 09-III, although the 09-III is still a powerful engine. Hence this is why you obtained a slightly higher RPM output. getback has the earlier 09-III, so I was comparing apples to apples.


Last edited by GallopingGhostler on Wed Aug 27, 2014 7:37 am; edited 2 times in total (Reason for editing : Spelling correction.)
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Post  getback Wed Aug 27, 2014 7:50 am

Thanks for the read, I have ran it a couple times about 8 oz. of fuel with some extra castor . Rich runs 7-8000 rpms and I have noticed the engine / head is getting pretty hot ! I am going to richen the castor more and hopefully get some more run time in today. The plug don't have any marking on it that I can see, I was able to get 10,000 at one time on a run so it is getting better I feel. I see it says 1 hour of breakin time is required sooooo Smile Smoking Eric
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Post  Surfer_kris Wed Aug 27, 2014 8:59 am

@GallopingGhostler wrote:
The later Enya 09-IV is a touch more powerful than the 09-III, although the 09-III is still a powerful engine. Hence this is why you obtained a slightly higher RPM output. getback has the earlier 09-III, so I was comparing apples to apples.

Yes, hopefully the model IV is a little stronger than the III.
But I also believe that the numbers given for the Enya III, e.g. 12600rpm on a 7x4, were with a restriction in the intake and 5% Nitro. So without this restriction (as the OP has), and a little higher nitro content, numbers around 13500rpm would be perfectly normal. So only around 10000rpm on a 7x4 prop still sounds low, to me.

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Post  GallopingGhostler Wed Aug 27, 2014 9:43 am

[quote="Surfer_kris"]
@GallopingGhostler wrote:Yes, hopefully the model IV is a little stronger than the III. But I also believe that the numbers given for the Enya III, e.g. 12600rpm on a 7x4, were with a restriction in the intake and 5% Nitro. So without this restriction (as the OP has), and a little higher nitro content, numbers around 13500rpm would be perfectly normal. So only around 10000rpm on a 7x4 prop still sounds low, to me.
True, CL venturi is less restrictive and will produce more power (rpm). Sounds like the Enya isn't quite broke in yet. I run mine with shorter runs on a 1 oz. tank with cooling off period between. They take some work to break in, but even though they are the older cross scavenge technology, they are real work horses. Laughing
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Post  Surfer_kris Wed Aug 27, 2014 9:53 am

Yes, they are great engines. The cross-scavenging makes them a little loud though, especially on the older smaller mufflers (for Enya III). They now come with the .15 muffler though, which is a shame as these are unnecessarily large and heavy. The best muffler I have is a "car" muffler, it is very quite and makes the engine run very smooth, without any power loss compared to the regular airplane muffler.

1970's enya 09 rerun after yrs. Img_1411

1970's enya 09 rerun after yrs. Img_1412
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Post  getback Wed Aug 27, 2014 8:23 pm

Now that's a muffler !!!  test to day still 10.5 was all I am going to get and if u let it lean out then starting was a problem second run my son started it his first hands on Very Happy  1970's enya 09 rerun after yrs. Trans_10  castor fogggggggggg1970's enya 09 rerun after yrs. Trans_11 next break in is with nose cone for elect. start lol! lol! Eric Pssss . I did add some extra castor oil to make the fogg.
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Post  Oldenginerod Wed Aug 27, 2014 10:28 pm

As far as I'm aware the .09-III & .09-IV are exactly the same except the exhaust is on the opposite side and later IVs has a wider exhaust for a bolt-on muffler rather than a strap-on. All internal parts (part numbers) are the same- piston, rod, liner etc. Just reversed. Tests may prove differences but with the same porting and internal dimensions I can't see how you would see a lot of difference. If there is a notable difference, I'd be interested to see if I can get any performance differences in my Torpedo .40 with the crankcase reversed. Maybe the rotation of the crank creating inertia in the air/fuel mix can effect transfer performance.

Rod.
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Post  GallopingGhostler Wed Aug 27, 2014 10:57 pm

AFAIK, differences are subtle but they are there. Best thing I like about the Enya 09-III is that it is more powerful than my mid 1960's OS Max 10R/C of the same vintage, although that is a really nice, sweet operating sport engine. The 10R/C is very light at 3 oz, good upgrade to an 049.

If flies with plenty of power using my Tatone 09-19 Peace Pipe muffler, which I believe is lighter than the Enya muffler.
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Post  Surfer_kris Thu Aug 28, 2014 7:40 am

Oh I have that "peace-pipe" too, it is anything but peaceful!
It is one noisy exhaust collector, at best...

I suspect that they made a spelling mistake there, it should probably have been "piece-pipe" as it comes in two-pieces... lol!
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Post  GallopingGhostler Thu Aug 28, 2014 10:25 am

I don't have an audio meter, so all is subjective. To me, the Tatone 09-19 Peace Pipe seems no louder than the older style single chamber Enya muffler. I wouldn't put it on anything larger than a .10 sized motor, though due to its smaller chamber and outlet, definitely not on a .19.
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Post  GallopingGhostler Fri Nov 07, 2014 8:50 am

Speaking of Enya 09's, I just bagged me two Enya .09-III CL engines from E-Bay. These engines are targeted for my Sterling P-38 profile, a 36" (914mm) wingspan CL plane. There's been interesting debate on this particular model, a few commenting it is not a pristine stunter. I think they miss the point that back in the 1950's, there were many CL planes produced that were sport fliers. Just as we have in RC nowadays gents who are not interested in flying the AMA or FAI pattern, but bore holes in the sky, so was back then. RC gear was expensive and beyond most hobby enthusiasts. Just as turbine powered aircraft are expensive in this day and age, so was multichannel RC flying back then. CL provided a venue for all sport fliers then.

I am impressed with the power output of these smaller Enya engines. Even though cross scavenged with fenced piston, propped correctly can keep up with the modern plain bearing sport Schneurles of similar displacement. My Enya .09-III TV with wooden 7x6 prop and Tatone 09-19 Peacepipe muffler is really sweet running.

1970's enya 09 rerun after yrs. Enya_010

1970's enya 09 rerun after yrs. Sterli10

Here's a photo of I downloaded some time back of the model, don't know whose model though.

1970's enya 09 rerun after yrs. P-38_p10
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Post  GallopingGhostler Fri Nov 07, 2014 6:30 pm

I ran one this afternoon after reorienting the NVA to the engine's left side. It started without complaint, was easy starting, consistent running through the entire tankful, produced good thrust. I was able to easily operate the needle without getting singed by the engine exhaust. This little engine doesn't put out the hot exhaust volume of a larger engine, say a .40. They both should work fine on my P-38 Lightning.
These little Enya's are real jewels. Clapping Leaves

1970's enya 09 rerun after yrs. Enya0910
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Post  706jim Fri Nov 07, 2014 10:25 pm

My Fox 15 from 1963 had a quoted output of 0.25hp.

Looks like the Enya 0.09 has pretty much the same power as the Fox.

Not that either of these engines compare to the claimed output of modern R/C car engines.
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Post  getback Sat Nov 08, 2014 7:11 am

George , when you get that p-38 to Maiden try and make us a video like to hear /see that thing in action / what fuel did you use when running those enya's ? I got a peace pipe looks like it would fit my 09 says 29-40 on it is that engine size ? looks way too small for that application  1970's enya 09 rerun after yrs. Wp_20112  Eric Very Happy
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Post  rsv1cox Sat Nov 08, 2014 7:30 am

Yes, X2 on that. The P-38 is my all time favorite aircraft and Enya's my favorite R/C engine. I would love to hear those two in sync on that P-38.
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Post  GallopingGhostler Sat Nov 08, 2014 7:41 am

I'm using 10% to 15% nitro fuel on them, standard RC fuel with added Castor to bring oil up to 25%. I'll post photos, and if there's someone to video, will post that, too.

I've got one of those Peacepipes, but it is the longer version with same size chamber. I'm using it on an Enya .19-VI TV.

1970's enya 09 rerun after yrs. Enya1910

Muffler you've got, only way to find out is try it. The wider spread mount might present a challenge, IMO. If on a CL plane, may add more weight than desired. I have the smaller 09-19 version, it woks fine on the 09, had really spirited performance on a 40" wingspan foam Cessna 180 ARF with 7x6 wood prop. Can't find a photo of that mount to plane, but have an earlier photo before:

1970's enya 09 rerun after yrs. Eny09t10
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