Roy Holmes
Resource contributor
- Messages
- 1,803
- Country
As I pointed out in the original post, I was working on the C-2/E-2 turboprops which, above about 45% PLA, run at constant prop speed of 1105 RPM. The way that RPM is maintained is similar to that used in the sim and it works as follows. If the Prop RPM is above 1105, then the pitch angle is increased slightly which creates more power required and so the prop slows down to the normal 1105. These airplanes do not vary Prop RPM for noise abatement nor range considerations.
From what you say and I have learned by studying the King Air Flight Manual the Pt-6 behaves differently.
So I assume that the sim does a generic Turboprop just like it does a generic turbojet or turbofan, one model fits all.
My approach in developing engine FDE is to simply create the best performance match between an airplane and its performance manual figures and pay less attention to the niceties. If the speeds are correct and the climb and range data is within 3 to 5% I'm happy.
Roy
From what you say and I have learned by studying the King Air Flight Manual the Pt-6 behaves differently.
So I assume that the sim does a generic Turboprop just like it does a generic turbojet or turbofan, one model fits all.
My approach in developing engine FDE is to simply create the best performance match between an airplane and its performance manual figures and pay less attention to the niceties. If the speeds are correct and the climb and range data is within 3 to 5% I'm happy.
Roy