extended range operation in relation to an aeroplane with two engines, means an operation to a distance in excess of 60 minutes flight time from an adequate aerodrome calculated at single engine cruise speed.
For example at QF we use 400 knots on the 738. PH and AD are the nominated adequate airports. However, KG is there if needed. There is a small portion of Y19 that is outside 60 mins (400 nm) of a useable adequate airport hence we are planned ETOPS.
Is 400 kts (I presume TAS) correct for single engine ops? I'm not a 737 driver but I would guess 260-300 TAS, if that, would be more in the ball park with one donk dragging in the wind.
Tried to use some 737 performance data on the web to back this up, but can't find anything.
Should CAO 82.0 be calculated with respect to a wind component?
RMA