Boeing 747-100 in the context of "Boeing 747SP"

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, the original "Jumbo Jet". It was Pratt & Whitney's first high-bypass-ratio turbofan.

Tower Air was a certificated FAR 121 U.S. charter airline that also operated scheduled passenger service from 1983 until 2000 when the company declared bankruptcy and was liquidated. Scheduled flights were initially offered over a New York – Brussels – Tel Aviv route in addition to charter flights to Athens, Frankfurt, Rome, and Zurich. Short-lived New York – Los Angeles flights were introduced with the addition of an ex-Avianca Boeing 747-100 in 1984. The airline was headquartered in Building 178 and later in Hangar 17 at John F. Kennedy International Airport in Jamaica, Queens, New York City.