Pratt & Whitney JT9D - Wikipedia
The Pratt & Whitney JT9D high-bypass turbofan engine was developed for the Boeing 747. The JT9D program was launched in September 1965 and the first engine was tested in December 1966. It received its FAA certification in May 1969 and entered service in …
JT9D Engine - Pratt & Whitney
Pratt & Whitney's JT9D engine opened a new era in commercial aviation: the high-bypass-ratio engine to power wide-bodied aircraft. Since entering service on the Boeing 747 aircraft in 1970, the JT9D engine has proven itself to be the workhorse for early 747, 767, A300, A310 and DC-10 aircraft models with more than 3,200 cumulative engines ...
General Electric GEnx - Wikipedia
The General Electric GEnx ("General Electric Next-generation") is an advanced dual rotor, axial flow, high-bypass turbofan jet engine in production by GE Aerospace for the Boeing 747-8 and 787. The GEnx succeeded the CF6 in GE's product line.
Boeing 747 - Wikipedia
The 747 is a four-engined jet aircraft, initially powered by Pratt & Whitney JT9D turbofan engines, then General Electric CF6 and Rolls-Royce RB211 engines for the original variants. With a ten-abreast economy seating, it typically accommodates 366 passengers in three travel classes.
Boeing 747-400 Technical data - Ultimate Specs
There are different engine possibilities for the Boeing 747-400 with power from 56,500 to 63,300 lbf (251 to 282 kN). A total of 694 airplanes produced of all versions (747-400, 747-400D, 747-400ER, 747-400ERF, 747-400F, 747-400M). The technical data below is for the engine PW4000-94. Cockpit crew: 2.
Pratt & Whitney JT9D-1GT2 Turbofan Engine, Cutaway
JT9D engines powered the Boeing 747 on its first flight on February 9, 1969, and entered airline service in 1970. The JT9D also powered some versions of the McDonnell Douglas DC-10, and Airbus Industrie A300 and A310.
Pratt & Whitney JT9D-7A | This Day in Aviation
Dec 21, 2024 · The 747-100 is powered by four Pratt & Whitney JT9D-7A high-bypass ratio turbofan engines. The JT9D is a two-spool, axial-flow turbofan engine with a single-stage fan section, 14-stage compressor (11 high- and 3 low-pressure stages) and 6-stage turbine (2 high- and 4 low-pressure stages).
How Boeing’s 747 Revolutionized Aviation - Engineering.com
Aug 25, 2020 · To get the massive plane off the ground and haul so many passengers over long distances, the 747 needed an entirely new engine—something far more powerful than the ones in use at the time. Enter the Pratt & Whitney JT9D turbofan, an engine that would be a game-changer for aircraft power.
Pratt & Whitney PW4098 Turbofan Engine - National Air and Space Museum
This engine powered a Korean Air Lines Boeing 777-300 aircraft. The PW4000 series engine replaced Pratt & Whitney's highly successful JT9D, which powered the Boeing 747, the first jumbo-jet.
5 Things You Likely Never Knew About Boeing's 747 - Forbes
Feb 16, 2019 · Such engines were exactly what was needed for the next generation of wide-body aircraft like the 747. These high-bypass-ratio turbofan engines would soon replace the low-bypass fanjets that...
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