What aircraft type are you getting 140knots from at 26lph? almost sounds too good to be true unless you are pulling off LOP and you're quoting figures from 8,000ft+ for TAS.
I get get a TAS of around 135-140 at 9,500ft on 20-21 lph with a 400kg+ payload, just sayin' :-)
Last edited by StickWithTheTruth; 16th Jan 2018 at 07:11.