The earliest variant, the 747-100, was rolled out in 1968 and first ... aircraft is powered by four Rolls-Royce Trent 500 turbofan engines with 57,000 pounds of thrust each. It is quite obvious ...
The 747-100, the first variant of the aircraft type ... In 1971, the manufacturer introduced the -200 model, featuring more powerful engines. Two examples of this variant are aircraft operated ...