Best Altitude
Hi again,
My question is what the best altitude to fly at is assuming that its not possible to ride the Gulf Stream (or other favourable winds) and that weather at lower altitude isn't too rough. In particular how much energy (and therefore fuel) is used to get to different altitudes compared to travelling horizontally and is there any kind of formula for ideal altitude -v- length of flight?(assuming we are talking about a jet that can fly up to about 40,000 ft)
Thanks,
Bill