RB211 Info
Took a buddy out for the day recently on the 757 and being from
an engineering background he was very interested in the a/c's
engines themselves. When he asked how fast various stages of the engine were rotating, I as a simple driver merely pointed to the N1, N2, and N3 displays. That tells us as a percentage but
does anyone know what 100% actually means in terms of RPM for the various stages?