@ San Carlos, CA
March 2019
The Pratt & Whitney JT9D engine was the first high bypass ratio jet engine to power a wide-body airliner. Its initial application was the Boeing 747-100, and was Pratt & Whitney’s first high-bypass-ratio turbofan. First run in 1966, production ceased in 1990 in favor of the newer PW4000 engines which are less complex, more reliable, and cost less to purchase. iPhone 8 photo.
