This glow plug engine was manufactured by Metalurgica Miguel Devoto e Hijos S.A.I.C. in Buenos Aires, Argentina. It is new in the original wooden box, as the owner, Daniel Gomez states that he purchased the engine new but never ran it. The “RC-UC” designation means it was designed to be used in both U-control and radio control applications. The throttle lever can be operated by a servo. That would probably date it from the late 1960s or early 1970s. The serial number, L-119-4N is hand scribed on the right side of the crankcase motor mount. The letters DH and number 40 are cast into the left side of the cylinder case. It is packaged in the original finger-jointed wooden box with a red label that says “DH motores .40”. Two copies of the original Spanish language instructions were included.
The fact sheet on the engine claims 1.1 HP at an 11:1 compression ratio running on a 75/25 or 80/20 gas/oil mixture. For competition, 5-10% Nitro Methane was added. The RPM range was from 2,800 to 12,500 RPM.