Model E.D. 3.46 DC HUNTER Mk. VI
Manufacturer Electronic Developments, Ltd., England
Distributed by E.D., Surbiton, Surrey, England
Series / Serial No. 4122/9
Displacement 0.211 cu. in. (3.46 D.C.)
Diameter 0.656 in. (21/32 in.) (16.66 mm.)
Stroke .625 in. (5/8 in.) (15.88 mm.)
Power output 0.25 HP @ 10,000 RPM
Diesel Power Class
Adjustable Carburetor type (with primitive speed control)
Admission rear rotary valve
Crankshaft on bronze Journal bearing
Fuel: / Oil / Kerosene/ /Ether
Condition well used but serviceable
Comments Classic English style, very solid construction and rear rotary valve. Steel sleeve
On 21th September 1954 ED prepared an RC Model Airplane and flew it nonstop from England to France from a chase plane
After 102 minutes airborne it arrived over Calle in France
My engine is equipped with a rare optional linked double butterfly throttle arrangement
Its a very massive engine well made with lots of torque
Something a little different here, we are looking for some help to identify the origin of this mystery engine.
All my reference books for Czech and other European countries were of no help and after my lenthy research, it still remains a mystery engine to me.
Welcome back to Peter's Engine collection for the running of a beautiful old long-stroke diesel which we found on Ebay.de. Sold as maybe a Czech engine but it could be anything as the cylinder looks like it could be a copy of the French Micron.
We did't open it up for measurements but judging from its size at a guess I would say its about 3.5 cc's. The best lead to its origin is another mystery engine offered on Ebay.uk and described as a possible Jiri Patrman engine. Both engines seem to have very similar looking fuel tank designs.
I am even not sure if it is a replica engine or the genuine thing, its serial number (19) is sramped on the backside of the prop-driver.
OK! Lets bring it outside and see if we can make it smoke.