New model Enya 35 plane engine available

[redout]

I don't think anyone else has posted this and I thought it might be of interest to some. It looks like a completely new model, at least externally, and was first available only two weeks ago.

https://www.enya-engine.com/store156C_1/index.php?main_page=product_info&cPath=1_4&products_id=625

[Motorman]

Looks like the front end of a K&B 4011. Not much info about it.

[kevin king]

 The "ENYA SS35EX Engine" is a lightweight, compact, easy-to-handle, high-performance 2-stroke glow engine with an ABC-spec cylinder and piston based on the conventional steel cylinder specification product, and a new machined aluminum head. The cylinder liner is hard chrome plated and combined with a high silicon aluminum alloy piston, high performance and high durability are realized. The piston weight has been reduced and the exhaust port shape has been redesigned, resulting in a torquey engine that blows from low to high speeds without stress throughout the entire range. This engine can be used not only for sports and stunt engines, but also for scale engines.

The ENYA SS35EX engine is a lightweight, compact, and easy-to-use high-performance two-stroke glow engine that uses ABC cylinders and pistons based on conventional steel cylinder products and a new machined aluminum head. The cylinder liner is hard chrome plated, and the combination with the high-silicon aluminum alloy piston achieves high performance and durability. The lightweight piston and revised exhaust port shape make this an engine with full torque that can rev up from low to high speeds without stress. It can be used not only for sports and stunt machines, but also for scale machines.

[Steve Helmick]

The actual CL version is SOLD OUT, so there's that. Looks like it might be a good substitute for a Magnum XLS .36, though.  Steve

[Dave_Trible]

My son in law ordered one last night-no problem,  But don't know how many they had.

Dave

[BillLee]

5.52cc is actually .336 cu.in.

[Dave_Trible]

We discovered that Shtterman on the bay is selling the motor but in a ball bearing version-the Enya Direct one is plain bearing.   Our guess is he had the ones he is selling made special as BBs.   They are about 40-50 bucks more in the BB version. 

Dave

[Motorman]

Is the plain bushing version still bolt on front end?

[Dave_Trible]

Well I may need to get more info.....I was told they were plain bearing and they weight about 7.7 ounces.   They just added the item to their catalog a couple days ago and the picture shows a BB.   Kevin just ordered a second one last night so we'll know when they arrive.  YES it appears they have the bolt on front end.   That has long been the way Enya has done things since the 50s.  They already had tooling for that and in fact maybe had old stock of front ends used on Classic 5224s and other things.   I recently had to get a replacement front end for an ss30 I bought and had to get it from someone in Europe of all places.   I was surprised that it wasn't the same one used on the old .35 though.

Dave

[Paul Wescott]

The CL version is not showing as “Out of Stock” right now.  But $133 USD (before shipping).   I don’t know if I need another Enya 35 that badly no matter how new it is.

[Dave_Trible]

The CL version is not showing as “Out of Stock” right now.  But $133 USD (before shipping).   I don’t know if I need another Enya 35 that badly no matter how new it is.

Actually by today's standards thats pretty reasonable given there are no other engines in this class being made.   You were paying over $110.00 for new FP and LA .40s and .46s  ten plus years ago.......I also consider the quality of Enya engines.   They almost last forever with just reasonable care-far longer than OS.


Dave

[Dave_Trible]

Kevin got the first one today already( faster than mail from cross town).  It is BB and weighs 7.0 without muffler.  Very light for BB.  It also is a drop in fit to the 5224 model.

Dave

[Colin McRae]

Does anyone have any direct in-flight experience with this new engine in a stunt application?

Also, power wise, would it be on par with an OS 40 or 46 LA?

[Dave_Trible]

This engine is just coming out so likely not much experience should be expected yet.   I will say the old Enya 35 5224 model was,  I believe from my experience with it,  the most powerful 'stunt' .35 out there.   The OS .35S was pretty close.  The 5224 model came with two heads, one for stunt/sport and a high compression head for combat/racing and three venturi.   It could actually do both pretty well.   Also a lot was determined by what fuel you put in it.  These days we have our best 'stunt luck' using 2 1/2 to 5 % nitro.   They can get cranky when you push more nitro.   They are/were made for the world market where nitro was either banned or scarce.  Hence they are more compressed than American made engines.  The new one is Schnerle ported so apt to produce even more power.   It MAY want to run faster with a flatter pitch prop-TBD.   To compare it against .40s and .46s- not sure that's fair because it won't tolerate the larger prop diameters that more bore does but I'd guess it's the equivalent of at least the milder .40s.  I'm finding with the Enya and Mercos I run the fuel costs are less by virtue of less nitro but also they seem to have higher mileage ratings and don't need as large fuel tanks.

Dave

[Dave_Trible]

I am now in possession of one of these little jewels.   It is light and rather small for a .35 but still calls for 10-6 or 11-4 props in the instructions which tells me despite being Schnerle ported it is still timed to run ‘stunt’ runs at moderate rpm and produce some torque.   The case is noticeably smaller that the old standard 5224 model and is in fact the same case used on the SS .25 and .30.  The muffler is the same as provided with the last run of the Classic 5224 model which was a bit smaller and lighter than the earlier version.   The new style red anodized red head makes it stand out.  Since it doesn’t fit the footprint of the 5224 I guess I will need to build something new to fly it .   Sort of considering a Talon but we’ll see what happens after I complete my new ‘Shark killer’.   If I get the chance I might start bench runs next week.   It calls for up to two hours of break in which is in line with other Enya engines.

Dave

[Dave_Trible]

The lineup

[Dave_Trible]

A few shots

[Dave_Trible]

Next

[Dave_Trible]

Next

[Dave_Trible]

Finally the mufflers

[Jake Moon]

That's a cool-looking motor right there. Thanks for sharing photos. I look forward to hearing how your experience with them goes. A couple pilots here in Singapore ordered them as well. I may end up ordering one too if they go as good as they look. My poor mother—moved all the way to Japan thinking she wouldn't have to deal with control line stuff anymore and now she gets packages of CL stuff showing up on her doorstep before each time I visit.

[Dave_Trible]

She’s learned she can run but can’t hide….

Dave

[Colin McRae]

I also decided to pick up one of these new Enya CL engines.

Quite light at 8.9 oz (7.3 oz engine + 1.6 oz muffler)

The Enya instructions are relatively poor. Only really basic info. I'm a bit used to OS manuals that are quite detailed.

The manual mentions 15-25% nitro which seems odd. Enya's advertising calls it 'high power and high torque'. I'm wondering if they are taking credit for the high nitro when making this statement. When the time comes, I'll be running mine on probably 10% nitro.

The manual does not mention fuel oil content. It just says use a high-quality fuel. I assume being an ABC -BB engine that 20% total oil is acceptable. The fuel I normally run is VP Power Master 18% oil, but I add a bit of castor to boost the total oil to 20% as recommended in the OS manuals I have. My oil blend ends up being 32% castor / 68% synthetic.

The spray bar is 4mm. Venturi 7 mm (0.276") Throat effective area approx 0.0164 sqin.

6.5mm and 7.5mm venturi's are also available, but the stock 7mm seems about right for a good stunt run.

The manual also says use props (10-6 to 11-4) that provide 11,000-13,000 rpm in the ground. Sounds like the sweet spot for power output is right around 12,000 rpm.

[Dave_Trible]

Yes I read about the nitro with some skepticism.   All my other Enya engines get balky over 5-7% nitro.  They are generally more compressed than typical American engines due to the lack of or high price of nitro outside the US.  Also the rpm verbiage.  I'm sure it will turn rpm like that with an 8 or 9 inch prop.  Not normally with a stunt 10-6 which it calls for.   I'm betting a launch rpm at around 9800-10000.  We will see.   I am also a believer in oil-cheaper than new engines.  I'll start out with the 2 1/2-25 all castor I use on the other Enyas,  Mercos, and OS S .35s.  I'll adjust once I get it sorted out better.

Dave

[Motorman]

The new Red Head.

[Colin McRae]

I know it's still early, but does anyone have any bench or in-flight experience as yet with the new Enya 35 SS BB ABC engine.

[Dave_Trible]

I know it's still early, but does anyone have any bench or in-flight experience as yet with the new Enya 35 SS BB ABC engine.

Not yet here.   Don't have a plane built for it yet.   However It looks like it should be a good one.   Based on past experience with getting the .61 CXLRS pipe motor I wouldn't wait to long if you are interested.  They may only make a limited number then you are out of luck.

Dave

[Colin McRae]

Not yet here.   Don't have a plane built for it yet.   However It looks like it should be a good one.   Based on past experience with getting the .61 CXLRS pipe motor I wouldn't wait to long if you are interested.  They may only make a limited number then you are out of luck.

Dave

I did pick up one of the new engines. It's still in the box but might get it in my test stand soon to start the break-in process.

I'm thinking about trying it out on my Nobler ARF. I currently am using an OS 40 LA on the Nobler. The model needs 2.5 oz of tail lead to CG balance.

The Enya 35 SS w/ muffler is about 2 oz lighter than the OS 40 LA w/ muffler. Will be able to reduce tail lead some resulting in an overall lighter model. Maybe a full 3 oz!

It fits perfectly on the ARF stock bearers.

[Dave_Trible]

That sounds like a GREAT idea!  I may get mine on the test stand soon if we get a few warmer days-may be too windy to fly but can run engines at least.  I also still have my .61 CXLRS in the box and it needs a break in too.   I plan to start a build for one or the other soon-can't decide which.

Dave

[Brian Hampton]

I also still have my .61 CXLRS in the box and it needs a break in too.

It shouldn't need much breaking in. I got mine back in 2011 and actually gave it some running in given that it's ringed but once I put it in my model for its first flight I set the needle for a 4 stroke with the barest hint of a 2 stroke and let it loose. In level flight it went to a full 4 stroke burble but the moment I pulled the nose up, instant 2 stroke then back to 4 stroke. All I could think of was "Holy cow, so this is what they mean by a 4-2-4 run!". Running like that, you could essentially run it in simply by flying it. The liner is brass but nickel plated of silicon carbide composite so essentially "Nikasil" but as that's a trade name Enya can't call it as such.

[Dave_Trible]

It shouldn't need much breaking in. I got mine back in 2011 and actually gave it some running in given that it's ringed but once I put it in my model for its first flight I set the needle for a 4 stroke with the barest hint of a 2 stroke and let it loose. In level flight it went to a full 4 stroke burble but the moment I pulled the nose up, instant 2 stroke then back to 4 stroke. All I could think of was "Holy cow, so this is what they mean by a 4-2-4 run!". Running like that, you could essentially run it in simply by flying it. The liner is brass but nickel plated of silicon carbide composite so essentially "Nikasil" but as that's a trade name Enya can't call it as such.

Brian was yours rear exhaust or side exhaust?   Pipe or muffler?

Dave

[Brian Hampton]

Dave, rear exhaust with header and muffler from Randy Smith in an SV-11. Fuel was a simple 80/20 castor. The CXLRS designation means that it's a CX type, L means rear exhaust, R is ringed and S for stunt. The only mod I made was to swap the original 7.5mm venturi for an 8mm stolen from my re-issued Enya 60IIIB.

[Steve Lotz]

I wonder if this new 35 would fly a profile Cardinal.

[Colin McRae]

I wonder if this new 35 would fly a profile Cardinal.

I have a few break-in runs completed on my new Enya 35 on my test stand and plan to try it out on my Nobler ARF in the next few weeks. On the test stand it was easy to start and appears to be quite powerful. I was running 10% nitro / 20% oil (68% syn/32% castor)

My Nobler runs an OS 40 LA with MAS 10-1/2 - 4 prop (cut down from an 11-4). It needs to run around 11,000 rpm to pull the Nobler. I will find out soon enough if the Enya will spin the same prop at 11k.

[Dave_Trible]

I have a few break-in runs completed on my new Enya 35 on my test stand and plan to try it out on my Nobler ARF in the next few weeks. On the test stand it was easy to start and appears to be quite powerful. I was running 10% nitro / 20% oil (68% syn/32% castor)

My Nobler runs an OS 40 LA with MAS 10-1/2 - 4 prop (cut down from an 11-4). It needs to run around 11,000 rpm to pull the Nobler. I will find out soon enough if the Enya will spin the same prop at 11k.

I haven't run mine yet but I will say this may not be the best way (to start anyway) running this engine and/or judging it's performance.  You might even ruin it trying in this way.   I plan to start at least running mine the way the previous Enya versions run well and go from there.  I wouldn't put more than a 10" prop on so as to not overheat the engine and go with 5 or 6 inches of pitch.   This should give you more thrust and the 9000 rpm range.  This one is Schnerle ported unlike the earlier versions -like the OS-  but may not be timed to run that way.   I learned this the hard way years ago with the late model ST .51.   Making the assumption that being a Scnerle it would want to run at very high rpm on flat props I burnt up a couple trying to run them that way.   Once I figured out it really needs to run exactly like the non-Schnerle ST .46 then all went well.
I'm also going with all or mostly all castor oil in the fuel.   The older Enya called for that in their instructions and in practice I've not had good experience relying on heavy synthetic mixtures.   Both of these thing can be altered once you get a feel for the motor and understand it's quirks but you won't do damage to the engine starting here and see were it takes you.

Dave

[Colin McRae]

I haven't run mine yet but I will say this may not be the best way (to start anyway) running this engine and/or judging it's performance.  You might even ruin it trying in this way.   I plan to start at least running mine the way the previous Enya versions run well and go from there.  I wouldn't put more than a 10" prop on so as to not overheat the engine and go with 5 or 6 inches of pitch.   This should give you more thrust and the 9000 rpm range.  This one is Schnerle ported unlike the earlier versions -like the OS-  but may not be timed to run that way.   I learned this the hard way years ago with the late model ST .51.   Making the assumption that being a Scnerle it would want to run at very high rpm on flat props I burnt up a couple trying to run them that way.   Once I figured out it really needs to run exactly like the non-Schnerle ST .46 then all went well.
I'm also going with all or mostly all castor oil in the fuel.   The older Enya called for that in their instructions and in practice I've not had good experience relying on heavy synthetic mixtures.   Both of these thing can be altered once you get a feel for the motor and understand it's quirks but you won't do damage to the engine starting here and see were it takes you.

Dave

Thx Dave for the notes and suggestions.

I'm aware to not put much load on any new engine during the break-in process. I used a 9-5 prop on my test stand and ran a bit rich during the cycles. Engine ran very cool. I was even able to touch the head shortly after shutdown. Was quite cool to the touch.

Being an ABC-BB engine I would expect it to turn faster than the older iron/steel P/L and plain bearing engines. The Enya owner's manual specifically states to select a prop that produces 11-13k on the ground for best performance. That tells me max power is probably around 12k. And 10-6 to 11-4 props are recommended. A 10.5-4 is well within this range. And I don't claim to know more than the engineers at Enya.

I also follow the care and feeding write-up on engines that Randy Smith put together on SH for all of us. Modern ABC-BB engines should be fine with a syn/castor blend. The Enya manual also says to use a 'high quality fuel', but no specifics are offered. Most modern fuels on the market today are a syn/castor blend. The VP Power Master fuel I use is 18% oil (80/20 syn/castor blend). I add a bit of castor to boost the oil to 20% ending up with a 68/32 syn/castor blend.

I have about 30 minutes on the engine in the test stand. I plan to do another 30 minutes on the stand before it ever goes on the Nobler. Then take it easy with the larger 10.5-4 prop and make sure the engine is running a bit on the rich side. If it won't turn the 10.5-4 prop to the necessary 11k rpm while still being on the rich side, I will abandon it on the Nobler and do something with another smaller model. 11k is on the low side per the Enya manual.

I also have an older Enya engine instruction sheet. It does mention 20% oil (castor). But castor was the only thing available back in the day. I've boosted the VP 18% oil to 20%.

BTW, I run quite a few OS LA's (ABN-plain bearing) on the same 20% fuel (syn/castor blend). Lots of hours on these engines. The OS manuals recommend castor oil, but say syn is acceptable, just run a bit on the rich side which I always do.

[BOB ALLAN]

Not so much about the "new" ENYA 35, but rather an "old" one. In 1961 ENYA released their new 35-II Model 6001 as a follow up to the old 35 Model 5001, and by 1964 the long lived 35 (and 29) Model 5224 had arrived superseding the 35-II. Why was this model 35 virtually ignored - was it because it was only available for around 4 years or was it considered too heavy (by 2 oz.) back when FOX 35's held sway, or was it that everyone opted for the larger plain bearing 45 Model 6001 at a time when larger stunters were appearing ? The only printed test of the 35-II was of the choked down R/C variant which showed a torquey preference for the larger props. A low production, hidden gem perhaps and now sought after.
https://sceptreflight.com/Model%20Engine%20Tests/Enya%2035-II%20TV.html

[Dave_Trible]

Not so much about the "new" ENYA 35, but rather an "old" one. In 1961 ENYA released their new 35-II Model 6001 as a follow up to the old 35 Model 5001, and by 1964 the long lived 35 (and 29) Model 5224 had arrived superseding the 35-II. Why was this model 35 virtually ignored - was it because it was only available for around 4 years or was it considered too heavy (by 2 oz.) back when FOX 35's held sway, or was it that everyone opted for the larger plain bearing 45 Model 6001 at a time when larger stunters were appearing ? The only printed test of the 35-II was of the choked down R/C variant which showed a torquey preference for the larger props. A low production, hidden gem perhaps and now sought after.
https://sceptreflight.com/Model%20Engine%20Tests/Enya%2035-II%20TV.html

I am not familiar with this particular model.   I can only surmise that the 5224 model was an improvement for some reason an so replaced the 35 II.   As far as sought after?   Not to my knowledge.   Enya engines are actually very nice, well made and durable engines.   They have always been under appreciated by most in the US.   I think there are two main reasons;    they were always quite a bit pricey compared to the many US made engines during their prime period of the 1960s-70s.   Some of that might have been import taxes placed on imported stuff.   I wish I could have understood back then that the difference was probably worth it in the long run since they would outlast two or three McCoys and Foxes.  I also think there was some public hesitation because of the war to buy anything made in Japan at that time,  especially since many of those modellers were also veterans.   The 'made in Japan'  feelings are a bit like 'made in China' or 'made in Viet Nam' might be today with buyers looking elsewhere where possible.   The positive side for us today is that due in large part to the durability and abundance of new or hardly used Enya engines they can be easily found and at very low prices on Ebay and will help keep IC airplanes going for a long while still.   There is also a pretty good supply of parts available for them.   Many of the ones out there are RC- no problem,  they are easily converted to control line with a new venturi and NV assembly.

Dave

[katana]

The 'made in' feelings made me think - look how many of our engines are actually produced by our past 'war' adverseries! Japan, Germany, Italy, Austria and how they tend to dominate the general market whilst 'home' produced products never progressed beyond basic in most cases! 

[John Rist]

The 'made in' feelings made me think - look how many of our engines are actually produced by our past 'war' adverseries! Japan, Germany, Italy, Austria and how they tend to dominate the general market whilst 'home' produced products never progressed beyond basic in most cases! 

It's my understanding that post war USSR and other post war governments put a lot of money into model engine
 development to dominate in world completion just like they did for the Olympics.  Part of the cold war.   

[realSteveSmith]

...I have about 30 minutes on the engine in the test stand. I plan to do another 30 minutes on the stand before it ever goes on the Nobler. Then take it easy with the larger 10.5-4 prop and make sure the engine is running a bit on the rich side. If it won't turn the 10.5-4 prop to the necessary 11k rpm while still being on the rich side, I will abandon it on the Nobler and do something with another smaller model. 11k is on the low side per the Enya manual....

Hi Colin,

Have you had a chance to fly the new Enya 35 yet?

[Colin McRae]

Hi Colin,

Have you had a chance to fly the new Enya 35 yet?

Not yet. I want to put in some more time on my test stand. Then will try it out on my Nobler ARF. Hopefully in a couple of weeks. I already have maybe 30 minutes on it so far on an APC 9-5 sport prop. Has run very well so far.

[BOB ALLAN]

Not yet. I want to put in some more time on my test stand. Then will try it out on my Nobler ARF. Hopefully in a couple of weeks. I already have maybe 30 minutes on it so far on an APC 9-5 sport prop. Has run very well so far.

Could someone confirm the actual metallurgy used in the SS 35 EXS piston & liner.  It is quoted as being ABC which usually means the liner can be seen as brass, looking in the exhaust. This new 35 has a shiny liner denoting either an aluminum one (AAC) or possibly a chrome plated steel one (unlikely) like Enya used in a couple of their early 1960's engines. Another explanation is, they have chrome plated the outside of the liner as well as the inside. Just wondering........?

[Colin McRae]

Could someone confirm the actual metallurgy used in the SS 35 EXS piston & liner.  It is quoted as being ABC which usually means the liner can be seen as brass, looking in the exhaust. This new 35 has a shiny liner denoting either an aluminum one (AAC) or possibly a chrome plated steel one (unlikely) like Enya used in a couple of their early 1960's engines. Another explanation is, they have chrome plated the outside of the liner as well as the inside. Just wondering........?

Owner's manual states:

'ABC-spec cylinder and piston'

then also says

'Cylinder liner is hard chrome plated and combined with a high silicon aluminum alloy piston'

So, I assume a brass liner that is chrome plated, or Enya couldn't really call it ABC.

[Brian Hampton]

There's one way to at least discount it being ABN. Put the liner on a flat surface then use a neodymium magnet and slowly bring it closer to the liner. Nickel is attracted to magnets and if so then the liner, if ABN, will roll towards the magnet. I tried this with an OS liner and it worked while an ABC didn't move.

[BOB ALLAN]

There's one way to at least discount it being ABN. Put the liner on a flat surface then use a neodymium magnet and slowly bring it closer to the liner. Nickel is attracted to magnets and if so then the liner, if ABN, will roll towards the magnet. I tried this with an OS liner and it worked while an ABC didn't move.

Brian, I'm thinking it's more likely to be AAC or as ENYA calls it, Al-Chrome

[Colin McRae]

Brian, I'm thinking it's more likely to be AAC or as ENYA calls it, Al-Chrome

The classic definition of an ABC engine is an aluminum piston fitted inside a brass sleeve that has been chrome plated.

Why would we not believe that is what it is given Enya says it's an ABC engine?

[Dave_Trible]

Guess I’m just curious why it matters….

Dave

[Colin McRae]

Guess I’m just curious why it matters….

Dave

It doesn't.

A member was simply inquiring about the metallurgy used on the new Enya 35 engine. But as commonly happens, these types of posts end up taking on a life of their own.

[Dave_Trible]

It looks like it may just get warm enough (low 50's) for the next few days so that I may get to the flying field and if so I will get a chance to get mine on the test stand.    I've been asked what I think the manner of this engine will be, ie,  4-2 runner or 2 cycle screamer.    I should know after a couple break-in runs.   Somehow I just think it will operate more like it predecessor 5224 but we'll see.

Dave