What type of engine is the CFM56?

high-bypass turbofan aircraft engines
The CFM International CFM56 (U.S. military designation F108) series is a French-American family of high-bypass turbofan aircraft engines made by CFM International (CFMI), with a thrust range of 18,500 to 34,000 lbf (82 to 150 kN).

What engines did the Boeing 707 use?

Though initially fitted with turbojet engines, the dominant engine for the Boeing 707 family was the Pratt & Whitney JT3D, a turbofan variant of the JT3C with lower fuel consumption and higher thrust. JT3D-engined 707s and 720s were denoted with a “B” suffix.

Why was Boeing interested in the CFM56 engine?

The main targets were re-engine contracts for the Douglas DC-8 and the Boeing 707 airliners, including the related military tanker, the KC-135 Stratotanker. There was little initial interest in the engine, but Boeing realized that the CFM56 might be a solution to upcoming noise regulations.

Are there any pictures of the Boeing 707?

Browse 833 boeing 707 stock photos and images available, or search for pan american or boeing 747 to find more great stock photos and pictures. New York, NY: Mockup of tomorrrow’s jet comfort: Gracing the luxurious mockup of the Boeing Jet Stratoliner, which will enter service with airlines…

What was the last derivative of the Boeing 707?

The final major derivative was the 707-320 which featured an extended-span wing and JT4A engines, while the 707-420 was the same as the -320 but with Rolls-Royce Conway turbofan engines, making the aircraft more acceptable for the British market.

Why did Boeing use turbocompressors on the 707?

The 707’s engines could not supply sufficient bleed air for pressurization without a serious loss of thrust, so the aircraft instead used engine-driven turbocompressors to supply high-pressure air for this purpose.