Another max RPM question, but it's different, I promise!

[GregP]

I've extensively searched this forum, AND yes I've seen the FAQ entry about maximum RPM for the engines, but I think I still have a question that has not been answered:

 

I noticed that when I go to max power on takeoff (even just using the keyboard), my Fan RPM reads just slightly over 80% while my Core RPM reads just under 94%. I know that max Fan RPM on takeoff is supposed to be 82%, but what Core RPM should I be seeing associated with that? The manual say that normal operating range for Core RPM is up to 98%, but I can't get that high ... is it because I can't even get Fan RPM up to 82%?

Edited September 26, 2011 by GregP

[kylania]

I've never once looked at RPM while taking off. I'm usually too busy trying not to careen off the runway or trying not to hit the invisible texture line that will rip my nose wheel off. :)

[airdog]

IRL pressure, temp and altitude are all used to calculate RPM. I imagine its been modeled in dcs a10.

[macedk]

don't worry about it :)

[Eddie]

IRL pressure, temp and altitude are all used to calculate RPM. I imagine its been modeled in dcs a10.

 

Indeed. All of the above and their effects on the engines are indeed modelled. If you really want to see how much of a difference these parameters make, do one take off with an air temp around 30C and another at around -10C. It's almost like flying a different aircraft.