Commercial airliners typically cruise between 33,000 and 39,000 feet, primarily to achieve greater fuel efficiency. Private jets, on the other hand, tend to fly even higher, between 39,000 and 45,000 ...
Two of the US Air Force’s (USAF’s) distinctive high-altitude spyplanes made a rare public appearance at a UK air show over the weekend. The Lockheed Martin U-2S Dragon Lady jets participated in the ...