Each aircraft has a different weight/CG, performance factor due to aging etc. and also different engine models some time.
These tables are for:
ALL ENG.OPERATIVE, Thrust Rating: Max.Climb, A/C ON, A/I OFF, Landing Gear Retracted, climb at given CAS/Mach
You have different ISA conditions, speeds, weights and altitudes so that you can figure out your gradient moe accurately.
Hope it helped.
Last edited by guclu; 31st Oct 2012 at 19:56.