Originally Posted by
Laserowner
Maybe a metallurgist will chime in. I was told a long time ago by an Aero Engineer that taxiing out on one engine is false economy. A heavy airplane, high power settings to get moving, and a cold engine means more fuel consumption, more engine wear, and dollars out the window.... Therefore, I'm SAVING Delta money by starting em both!
Sounds like how if you fly faster you land with more fuel then they planned with you flying slower. Don't even bother pointing it out, it won't change anything.
But I will say I once read about a Citation X owner who realized how much money he could save flying the net slower than its M.92 cruise speed. Until he added in the power by the hour maintenance program and even with high fuel expenses (per gallon back then) it made more sense to go max power everywhere. So there is always more to the equation.
You've got me intrigued. I'd like to know more about whether it's better to two engine taxi.