Originally Posted by chris weston
Bear,
You are, as ever, spot on sir
I was taught that torque was rate of change of angular momentum, and that momentum is mass x velocity.
Yes I know, the mathematics here can be bracing.
In short, torque is directly proportionate to mass.
CW
I've been doing a bit of reading about the Trent 900, including this RR slide deck (
Trent).
For fun, I want to compute the energy of an IP disc at full throttle... something like 8,000 RPM at max rotor speeds. But, I have not been able to find any information as to the approximate diameter and mass of an IP disc for this engine, making the exercise somewhat difficult.
Does anyone have approximate values for these parameters?
TIA
PS: A couple of interesting reference documents.
http://www.rolls-royce.com/Images/ga...tcm92-4977.pdf
http://www.easa.europa.eu/certificat...4-24052007.pdf
http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/09b47c27a9cfb982862573080054f9ea/$FILE/E00075EN.pdf
