Thanks longtime lurker, Shawn Coyle and helibuoy73....for correcting me as I was having impression that Target Torque is my ceiling(upper Limit) for the OEI 2.5 min rating.
Now my understanding is lower limit for 2.5 OEI has changed but max remain 81% . Anytime my torque is in
59 - 73% = 30 min OEI setting (taking 30 degree C at sea level)
73 - 81% = 2.5 min OEI
as against
59 - 77% = 30 min OEI
77 - 81% = 2,5 min OEI
Correct me if wrong.
Also
As per definition of Target Torque its ........
TARGET TORQUE: Available 2½ minute OEl torque of minimum specification engine, assured by satisfactory completion of power assurance check.
So what exactly is ...satisfactory completion of power assurance check
because some engine may have +ve, 0 or -ve value, so is their any range for pass and fail.
As per my case my result for P.A. give me +40 and +25 (+-5 up and down).
Regards
Ashfaq