Originally Posted by
EastofKoksy
Hands up all those working at the BBC and everywhere else that drive an extra mile or two to find cheaper fuel then fill up their tanks to the brim. This practice must also use fuel to carry fuel. The Panorama programme will probably be just be another virtue signalling fest from the BBC against the great satan of flying.
Surely as a professional pilot you know that the impact on fuel consumption of added weight is vastly different for aircraft (where energy is consumed to counteract gravity as well as to overcome friction losses in moving the aircraft from point A to point B) than for wheeled vehicles (where energy is consumed only to overcome friction losses). The energy cost of "tankering" in a typical passenger automobile is probably very close to unmeasurably small.