ED Bee MK1

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ED Bee MK 1 Diesel
Circa Mid 1950's

Design History:
Manufacturer Electronic Developments (Surrey) Ltd in the mid 1950's;
Distributed by E.D. Kingston on Thames, Surrey, England;
This engine is the very successful MK1 Bee which was followed by the equally successfully MK 2




Design Features:
Diesel power class 2 stroke;
Fixed type carburetor without speed control;
Induction by rear rotary valve;
Non ball bearing crankshaft running in bronze journal bearing; and
Integral plastic fuel tank often missing from well used engines.




Specifications and Data:
Displacement 0.060 cu. in. (0.983 c.c.)
Bore 0.437 in diameter. (11.11 mm.)
Stroke 0.400 in. (10.17 mm.)



Observations:

This was my first diesel engine and it sat in a box for many years before getting around to running it. Installed in a single channel Keil Kraft high wing cabin model controlled via a rubber powered simple escapement hooked to the rudder (one pulse right two left). A perfect recipe for relaxing flying, until faced with a downwind fly away. The engine is pictured here sporting its new Kirby manufactured needle valve assembly and custom compression adjuster made with a special thread to match the thread restoring Helicoil insert that was used to repair the stripped head threads.  See this little gem run on homemade fuel, using a mixture of 33 % Kerosene, 33% Castor oil and 33% Cold Engine Quick Start (Ether) with the remainder Cetaine Boaster added to improve combustion.
It was not easy to start and I found that it was particularly sensitive to both needle valve and compression settings. Where, in the case of the compression, less than 1/8 turn meant the difference between running and not running.


http://youtu.be/H4Px10SPCIs
  



MAKE YOUR OWN MODEL DIESEL FUEL- FREE BOOK SHOWS YOU HOW; GET IT AT THE ENGINE TRADING POST
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Uctkam 2.5 cc Racer Diesel

Data:   UCTKAM Model 2.5 D (CSTKAM) Manufacturer U.R.S.S. (C.C.C.P.)
Distributed by U.R.S.S. (C.C.C.P.) MK III Year of manufacture 1995;
2.47 Displacement d.c. (0.151 cu. In.);
Bore 15 mm. (0.591 in.); 
Stroke 14 mm. (0.551 in.); 
Diesel power class 2 stroke;
Fixed type carburetor (without speed control); 
Admission front rotary valve (crankshaft);
Ether based Fuel / Kerosene / Oil;

Comments: One of the great Russian engines of production and quality better than the Meteor. This is a classical configuration diesel, steel jacketed, cast piston, crankshaft and supported in a front bearing in the crankcase.

Design History:
The UCTKAM Model 2.5 D was Designed and Manufacturer in the U.S.S.R. (C.C.C.P.) around 1968; was evolved from the Uctkam-1. to the MK II and eventually the featured engine the MK III which was introduced somewhere around 1995.  

Design Features:
classical configuration diesel;
steel cylinder liner;
cast iron piston;
fixed type carburetor (without speed control);
induction front rotary valve (crankshaft);
ball bearing supported crankshaft; 
schnuerle scavenging engine of high quality construction

Specifications:
2.47 Displacement d.c. (0.151 cu. In.);
bore 15 mm. (0.591 in.);
stroke 14 mm. (0.551 in.);

Observations by YouTube Channel Valic000:
Again another audition of a model diesel from my growing collection.The Uctkam arrive on the russian market around 1995,but I have no exact year. This engine popped up on E-bay some time ago and I decide this time it wil be not let it slip away from me, as I let it get away twice before..on inspection it is a very impressive engine. Its almost an exact copy of the famous Rossi 15. Diesel/Glow engine This was a very successful and proven design for combat and speed racing, that won many prizes. The Uctkam has also ABS piston setup, that will give him a lot rpm output. I am not sure,if the diesels were also sold with the res-o-pipe too.Its not a easy to find info on that issue. I think a res-o-pipe will work in a diesel too, but a bit less impact than in the case of a glow engine ,because of the lower speed and frequency of the shock wave. But it should give provide better filling of the cylinder. All in all the engine is well made to my mind but, maybe a lot people have had some bad experiences with some of the older engines from the Ukraine...that was the past...but today, there are leaders in developing hi-tec engines for competition flyer. Ceramic ball bearings and super alloys like Dispal S226 are only a few examples for using the best materials for their engines. The older engines shoud be checked for dirt and correct assembly, but if you have ``engine hands``...you can get your self a nice runner. This engine should run 30.000 rpm and produce 1 hp. It has a huge venturi and the same thick crankshaft, so it he hits the right rpm with a smaller prop, it should be possible. Maybe I will test this after the engine is freed up. Many thanks for watch my clips. A lot more nice old engine still will be run...here on my channel..please feel free to subscribe. I hope you share the same passion! Ratings and comments are always welcome.
http://youtu.be/gn3S5X5hDsU

Below, watch one of the early MK1 engines (serial no 44) scream something like it did back in those good old days.

Run-in Process for a MK3 Engine shown below