RE: YS DZ 175 advice required
It is undeniable that the electrics have many advantages such as virtually no engine maintenance, less vibration, hence longer servos life, more motor and models options, and others. However, regarding flight time, the IC has a huge advantage. As it has been told here, you can fly up to 18 minutes (glow). Four flights of 18 minutes each gives 72 minutes total, that is equivalent to about ten flights with the electric; it means more batteries, more takeoffs and landings, that is not useful time to practice the maneuvers that really matter. It also appears that the YS develops more torque than any available electric motor today, this, specially in windy days is an advantage that can not be ignored by serious pattern fliers. In spite of it is also undeniable that the trend is electrics, in my particular opinion, glow or electrics, is a difficult decision to take at this time !
Regards
Enrique