Detlef Kunkel presenting his home made engine at the Warbird Meeting Oberhausen
SORRY FOR THE HEAVY WIND NOISE during the flight. Data: The engine is a V4 construction 4 cylinder 4 stroke with 220 cc with a transmission reduction of 1.7. The shaft power is 25 hp max.. Designed for model aircraft between 30 and 50 kg take-off weight. Prop is a SEP 35-20 three-blade with 3700 - 3800 revolutions.
The aircraft was built specifically for this engine testing. It is an approved highdecker with 41 kg take-off weight. The engine cover has been dismantled for test purposes.
I can`t think of a cheaper way to build an ultra-durable RC plane than by using two very tough materials: coreflute and pool noodles, along with some simple tools such as scissors and an old...
