after a little digging
thank you for the reply. as it happens, some data is out there after a search of the internet.
however i was looking for more information from those have tried or operated this climb strategy.
British Airways
Airbus Fleet:
A319/A320/A321
Climb at: Cost Index 0
Cruise at Cost Index 20
Boeing Fleet:
Boeing 737-300/400 and 500 Series
Climb at: Cost Index 0
Cruise at Cost Index 28
Boeing 747-400
Climb at: Cost Index 0
Cruise at Cost Index 90
Cost Index 0 (Sometimes used on East Coast USA to UK Flights and less often on UK to Singapore/Bangkok flights)
Boeing 757-200 and Boeing 767-300
Climb at: Cost Index 0
Cruise at Cost Index 40
Boeing 777-200
Climb at: Cost Index 0
Cruise at Cost Index 100
Last edited by voice_of_peace; 29th Oct 2017 at 18:49.