In a nutshell - yes.
Max power would require, amongst other things, max prpm.
If you cannot achieve max prpm with "props to max", then the appropriate tech log entry is required.
With say, Performance E aircraft, single engine performance is probably at best 200ft ROC. You need every bit of power to survive at EFATO.
This came home to me big time when I use to do C of A renewal flight tests on Seneca IIIs - the SE 5 minute climb was often interesting . And that was on a nice day!!
Last edited by ecj; 24th June 2003 at 15:43.