CAP 697 FIG 3.1
Enter chart the first
time at TOC OAT (FL110, ISA=-7ºC, so ISA -10ºC = -17ºC),
Then enter a second time
to correct for Airfield elevation (OAT -1ºC)
Base scale left side
-17ºC, vertically up to 11000ft, across to the fuel line, read the scale = 9.5
US gall
Base scale left side
-1ºC, vertically up to 3000ft, across to the fuel line, read the scale = 3 US
gall
Fuel for climb Airfield
(3000ft) to 11000ft = (9.5 - 3) = 6.5 US gall