razor1uk
Staff Sergeant
Depending on the few methods of operation and controls used in a 'constant speed prop', these could perhaps induce slight rpm and fuelling changes automatically more often than just manual controls - dependant upon the mission, range and airframes; this could maybe cause more problems with diesel engines without more modern electronically programed and mapped settings for ignition, fuel pump loadings, injection requirements and of small throttling increments that we can enjoy nowadays.
As a note to the modern high performance diesels, the small cylinder high power diesel format, AFAIK, this is more likely to work towards and into the is region of engine speeds when the/each cylinder volume is under 500cc - typically thought to be around 330cc; and was partly (re-)discovered by the team or group that was tasked in developing the USMC Diesel (engine, for their) off road motorbike which was based upon the Kawasaki KLE/KLR 650 bike and (petrol) motor which was effectively copied and redesigned internally where needed to be 'Dieselized'.
As a note to the modern high performance diesels, the small cylinder high power diesel format, AFAIK, this is more likely to work towards and into the is region of engine speeds when the/each cylinder volume is under 500cc - typically thought to be around 330cc; and was partly (re-)discovered by the team or group that was tasked in developing the USMC Diesel (engine, for their) off road motorbike which was based upon the Kawasaki KLE/KLR 650 bike and (petrol) motor which was effectively copied and redesigned internally where needed to be 'Dieselized'.