Just re-reading my post... Sorry, I do sound like an arsehole.
It's a bad habit I seem to fall into.
Sincerely,
Stacks
As per your request:
In order to meet the PANS-OPS requirement of 2.5% in the missed approach sector, the PIC shall calculate the revised approach minima in the event of an engine failure as follows:
Calculate climb gradient available based on OEI climb performance in the AFM/POH using - Gradient = Rate of Climb / Airspeed
Use formula Actual Gradient ÷ 2.5 = XX
Subtract MDA from Missed Approach altitude. The difference being ALT
Subtract XX from 1. The difference being YY.
Multiply ALT x YY. Add this value to the MDA
Example:
Tamworth. MDA = 2000, missed approach altitude = 3500. Actual climb gradient = 2%
XX = 2 / 2.5 = 0.8
ALT = 3500 – 2000 = 1500
YY = 1 – 0.8 = 0.2
ALT x YY = 1500 x 0.2 = 300
Revised approach minima = 2000 + 300 = 2300ft.