PHOENIX V4 220cc - Home Made Engine

Detlef Kunkel presenting his home made engine at the Warbird Meeting Oberhausen 2017
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.

Music:
Music downloaded from the YouTube Audio Library
https://www.youtube.com/audiolibrary/...

Artist: Silent Partner
Title: Solar Flares