I just completed my 1945 Kiekhaefer 0-45-1 engine (747 cc, 20-22 hp, 35 lbs) restoration to ground running status only. It was used in the Radioplane TDD-3/OQ-14 aerial gunnery target (137.5 inch span, 134 lbs, 140 mph). I'm using a 1940's Carter "48
After a year of restoration, Righter 2-GS-17, #42-2250 runs. Six hp @ 3800 rpm, 277 cc, 2 cylinder, 2 stroke, 26 in. diameter contra-props, approx. 25 lbs weight, retrofitted motorcycle dual
