method for determination of propellerdrucksignals from the in flight with an aircraft and microphone measured propeller / cylinder outlet - mischsignal in propellerflugzeugen

摘要

in propellerflugzeugen with four stroke engines are in a propellerblattzahl, half of the column of the engine with the drucksignale each other. for the determination of the pure propellerdrucksignals