While Pratt & Whitney certainly competed for the engine to power this transport, it never seemed to take the high bypass engine requirement seriously as evinced by its first demonstrator's bypass ratio being little more than that of the then-flying JT3D.
From this review came a requirement for "a large military transport with high bypass engines.
Proponents of high bypass engines within the Air Force, led by CliffSimpson, got it there.
Ultrahigh bypass engines that offer the benefits of lower noise and lower fuel consumption also present a difficult challenge to the aircraft designer.
Modern, highly reliable gear systems will become a proven component of ultrahigh bypass engines in the future.
novel ultra-high bypass engines
, which have variable size jet nozzles to allow slower jet propulsion during takeoff and climb for low noise.
Nasdaq National Stock Market: GASI) today announced that Carnival Airlines has been added to its growing list of passenger carriers for whom it performs engine overhaul and maintenance services on high bypass engines