As a matter of fact, he does. He got them directly from Bob English (PAMPA directory) who did an excellent job of drawing them.

George

Thank you George. I checked the internet looking for a Bob English with no luck. I'll try looking up this PAMPA organization.

Bill

The source is Tom Dixson Plans. In his "Classic Era Plans" he lists the plan for a Veco Little Thunderbird, 46" Span and 435 Sq. In wing area..

Ralph

I have a worn, low compression 25fp on my arf streak and it is too much, I needle it rich to keep it from running away. At the end of the flight it goes lean for a few laps and tries to corkscrew me into the ground.

I think a .19 or .20 would be the perfect engine for this plane.

I've got a new (and very strong) Series 21 McCoy .40 on a light Mongoose running a 9x8 prop. It easily outruns most modern "sport" .40's. I love it ;->

Ralph,

You might want inquire about those Veco Little Thunderbird plans before ordering. I got a plan years ago (don't remember source) that was just an isometric assembly drawing. Make sure you are getting a plan that you can build from.

George

Thank you Ralph.

Bill

Ralph,

You might want inquire about those Veco Little Thunderbird plans before ordering. I got a plan years ago (don't remember source) that was just an isometric assembly drawing. Make sure you are getting a plan that you can build from.

George

[/quote]



George,

Thanks, I'm interested in the Veco Tom-Tom, I appreciate the heads up, and will check the situation out, as I do want plans I can build from. Veco Tom-Tom Kits come up on ebay now and then, but I really don't want to pay the price.

Ralph

I have gotten some wonderful responses from my friends at RCU. I'm aware of the vague plans available. I'm set upon the Robert English plans:

Robert (Bob) English
106 Troy Court
Vacaville, CA 95687-5739

I'm not certain of the address as I got it from a fellow who ordered them some five years ago. Can anyone give me an idea what this aircraft looks like? It's for an Enya .19 application and I'm leaning toward a Brodak ARF Flying Clown. I don't care for profile ships but at least my dad had a Clown - nostalgia I guess.

Bill

Suprisingly those are the kit plans.
Dennis

Cool, works for me. Thank you.

Bill

On Monday my mate Steve (steve111) and I gave my Enya 19-V some flights in his 360 square inch or so profile stunter, in place of the Olly clone that was in it previously. The 19-V had been chosen as it was a close match for the Oliver Tiger mount pattern, and seems to have similar performance.

I was running a Taipan black 9x4, Enya #3 plug, 5% nitro, 22% oil fuel. The oil was mostly castor with a bit of synthetic in it. Launch with it running in a slightly rich two stroke, RPM had previously been tached around the mid 11,000s with it running that way on the bench. No muffler. The tank was a conventionally vented Brodak 2oz.

The verdict is - absolutely wonderful!!!

After launch it picked up revs noticeably with just a hint of richness still, and proceeded to give a nice even run throughout the entire flight, only burping a couple of times on some tight maneuvers, and for a lap or two before cutting out. Steve and I each had a couple of flights, and really enjoyed the performance of the engine & plane.

Alas, after lunch we stuck his David Owen reworked Olly back in it, had a bad run (too rich or under compressed), and lost the plane to a wind gust while flying upwind with marginal engine power. I will be building another of Steve's design, as I want to get that Enya back in the air.

We were running two circles and managed to get two Enya powered planes airborne simultaneously - the 19-V and my friend Mike's SS30S powered ARF streak. The contrast in exhaust notes between the unmuffled 19-V and the muffled SS30 was stark. I like the old one better (but the SS30 is a great engine its own right).

cheers,
Colin

Thanks for the feedback. I have two used Enya .19 VI 4006s thanks to your mates at Supercool Racing Propellers/Bob Allan. My .19s will probably fly either a Li'l Thunderbird of a Brodak ARF Superclown of 355 sq. in. It's nice to know you had positve experience with your 360 sq. in. ship. I also have a new .09 and .40BB which will power a highly modified Cox Hyper Viper and Brodak ARF Oriental respectively.

Thank you for your encouraging feedback.

Best regards,

Bill

Hi Bill, its nice to know that at least ONE person read my Enya articles ! Just to set the record straight though, when I said - "I recommend that anyone blah-blah", I was actually talking about the ball raced versions of the Enya 19-V & VI, not the plain bearing jobs. That's not to say that the bronze bushed 19's aren't great engines - they are (well, ALL Enya's are !). Its just that from an engineering point of view, the twin ball raced Enya 19 is a delight. The only drawback with the 19 BB is, its a bit heavier than the plain bearing model, and it doesn't really produce much more power, so unless you need a bit of weight up front (such as in a Barnstormer)
you'd be better off with the plain bearing. Speaking of Enya articles too, we (that's me and two other guys) are working on producing a
more comprehensive and cohesive set of articles dealing with the Enya brand, to improve on my somewhat disjointed earlier efforts.
Finally, the original author of this thread (Bass1) showed us a photo of HIS Enya 19, which is actually a 19-IV. These earlier models are even better suited to C/L stunt work, as they are old technology with a longer stroke than the V or VI, but they need a wider spacing between the engine mounts to fit 'em in. I hope I can now prevail upon Colin Weaver to extoll the virtues of his Enya 19-IV ! Cheers, BOB ALLAN

Thanks for your response Bob. I have printed all of your contributions to S.R.P. along with Mr. Zwoiak's piece on the .40SS. There are two Enya .19 VI 4006 BBs, on eBay right now from the same seller and they are nearly new. About $33.00 for both as of now. I was tempted but what in the worldwould I do with four .19s. -build a B-17. I don't think that there are any parts available for the IV anymore per Ken Enya - the VI is OK. One of the .19s I bought on eBay came with a piston rusted fast to the cylinder and the cylinder liner corroded tight into the block. I thought it was a write off. Propane heat and a-lot of patience and TLC and I think I'm OK. It's a shame in that the cylinder head still had bare aluminum showing so I know it had little use. I'll break it in as new. I was amazed that the little .19 has a full floating piston pin (wrist pin) with nice little brass "wrist pin buttons" to retain the pin. Beautiful engineering. Thanks to you, my good sir, I also have a new .09 and SS.40BB. You got me hooked and I'm not sorry. Now for a nice (any size) four cycle Enya just to run on a stand when I'm bored.

I'll be eagerly awaiting your future contributions to Supercool Racing Propellers

Best regards - and thanks,

Bill

Bill, your mention of a 4 engined B-17 reminded me of an email I got recently. The author was none other than Clair Sieverling, who was one of my boyhood heroes, and the designer of the "Sun Devil," and El Conquistador amongst others. In this short excerpt, Clair is discussing his time as a GI near Tokyo in the mid 50's. Enjoy !

What a story!

Might be a day late (? ), but God bless all the Vets out there and everywhere...and thank you [8D]

Can't resist! Here are my thoughts on this lovely engine. (Note, this is very biased material - I have never met an Enya I didn't like!)

I have yet to fly a 19-IV, and the one I'm running now it seems to need more running in time before it is ready to go.

BUT - I have been bench running one in an effort to get it broken in and ready to go in a model.

My initial impressions were that it was cranky and hard to start, with a tendency to bite back or sit there oscillating. At that stage I was running a Taipan 9x4 on it. I then noticed that my example - from eBay - despite appearing to not have been run in had two problems. Firstly, the spraybar was non-standard. Secondly, the steel venturi insert was missing, leading it to have poor fuel draw and a distinct tendency to snuff.

After replacing the NVA with the correct one for a 19-IV, and fitting the venturi insert from another 19-IV in my collection, I was able to get much easier starting & tuning. I then noticed a tendency to spit fuel out the venturi when running rich. Altering the spraybar hole orientation from straight down to sprinkling rearward cured most of this.

The next thing I did was experimented with different plugs. In common with my 19-V, which I have now flown, it seems to like moderately hot plugs. Enya #3 and OS A3 give much better runs & behaviour than cooler plugs. The 19-V is more tractable in this area, the 19-IV tends to snuff randomly when rich if you run it with an OS#8 or equivalent, but put an OS A3 or Enya #3 in and it keeps right on going. Nitro makes absolutely no difference except for tolerance of rich settings. NO observable difference in peak performance between 5% nitro fuel or straight 75/25 fuel. The only difference is less tendency to stuff when rich with 5% nitro.

After a bit of breaking in, I did some tachometer readings. There were some real surprises here. The 19-IV is definitely a "torquer" and displays diesel like operating characteristics. I started off with a 9x4 Taipan, on which it was a bit snappy/balky. Brief bursts of peak would max out in the 11,200 - 11,500 RPM range, which I thought was low. The 19-V will happily do 12,000 on the same prop. I then thought "long stroke engine - try a bigger/heavier prop". What a difference! The optimal prop to date is the Bolly Clubman 9.5x6, on which the 19-IV displays awesome diesel like torque and power, and equals the PAW 19BR! Steady, rock solid 10,600 RPM on 9.5x6 for a huge amount of thrust. To put this in context, that calculates as about 0.35bhp (well over Enya's claim), is 500 RPM MORE than my two plain bearing PAW 19s, 200 more than my mate Steve's PAW 19 BR, and the exact equal of my Saito FA-30S four stroke on the same prop. The verdict, for best results use a 9x6, 9.5x6 or 10x4 on the 19-IV, use a smaller prop like 9x4 and you're throwing away half the performance of the engine.

My impression is that the 19-IV is a damn fine engine, and a direct glow equivalent to the lovely PAW 19 which is my favourite diesel. The two engines are basically interchangeable - I would not hesitate to put a 19-IV in a plane designed for a PAW 19.

cheers,
Colin

Sheesh, I should have put two and two together . Your Enya articles have been my bible whenever someone asks a question about Enyas and sometimes I'll give a link to them, or at least to Stuart's articles page. They must be fairly well read by now .

BTW, I've got a really nice Taipan 2.5 marine engine.......oh, I'd better not mention that.

Large or small it looks like the B-29 was intended to kick butt. Hardwood indeed! Clair must have been one heck of a pilot to even get it airborn. It's a wonder those poor little Enyas didn't blow their cylinder heads off!

Bill

Flew the KYO B-36 with 2 os and 4 Enya 19 engines, Two laps for takeoff and 10 laps level and mercifully then 2 engines would quit and I'd set up for a landing with a lap roll out. Shame I had to leave it when I rotated back to the states.
Dennis

My .19 VI is cranky also. It's anything but a "one flip" engine but it may be my clumsiness in determining an initial needle setting. I can't wait to use up all my 25% lube break-in fuel and really let it eat on 20% with 5% nitro. I'm breaking-in on an R/C carb but have proper C/L venturis and spray bar. I'll keep your recommendation of orienting the spraybar discharge toward the rear of the venturi on the C/L spray bar. I noticed that the threaded R/C spray bar discharge on my new .09 is located in the dead center of the venturi. Mine is set up with the discharge flush to the outside edge of the venturi - my doing. I will attempt a run with the discharge in the center. I'm going to experiment also. I noticed that my .40 R/C carb has a small discharge tube depositing in or near the center of the venturi. I have never seen a carb (Weber, Holly, Stromberg, Tillotson, Zenith, Mikuni, etc.) that didn't have a discharge like my Enya .40. I have copper tubing - .062 OD, .032 ID - that I want to solder into the spraybar orfice on the R/C discharge with the dicharge end of the copper tube filed to a 45 degree angle. Of course the 45 degree discharge would be oriented to the down stream of the incoming air charge. I've got to believe that this arrangement would lead to less obstruction of the cross sectional venturi area and improve fuel atomization. By comparison, the discharge tube on my Enya .40 is .063" ID. .19 = .032", .40 = .063". I don't think a .032" discharge on the .19 will starve the engine at full throttle. Anyway, it will cost me nothing to do the modification and nothing to undo it.

I have no idea what my plugs are on my newly acquired Enyas. I assume, at present, they are Enya #3s. I'll order some new #3s from Enya and compare.

I'm breaking-in on a light 7 x 6 APC prop. Wow, this little devil will pull from a 9 x 6 to a 10 x 4? Torquey little engine or what! Top Flight recommends a max of 9 x 4. I guess I have a-lot to learn. Keep posting please.

Best regards,
Bill

Later: I wish to correct myself. The fuel discharge tube in the venturi of the average carburetor is at a 45 degree angle to the incoming air flow and the 45 degree bevel cut on the end is parallel to to air flow. Mikuni carbs main discharge is circular, perpendicular to the incoming air charge and very close to the perimeter of the venturi. Moral - Don't shift into first gear until you have started your engine (brain). I'm still doin' what I said.

I hope to heck you have a picture or two you might share with us. Simulated GE J47-19 jet engines on the wingtips too? As my 13 year old son would say "Sweet".

Bill

I must get around to asking Clair what happened to the B29 AFTER the nose came off ! BOB