Not to fly.
The 747-400 use 3 different engine manufacturers; Pratt & Whitney, General Electric and Rolls Royce.
The 747-400 has 3 different engine choices:Pratt and Whitney PW4000General Electric CF6Rolls Royce RB211
There are 3 actually 747-400 Pratt and Whitney PW4062 747-400 General Electric CF6-80 747-400 Rolls Royce RB211
The 747-400 uses 3 different engine types; General Electric CF-6 Pratt & Whitney PW4062 Rolls-Royce RB211
One engine produces 56,000 pounds of thrust.
Jet engine power ratings are generally in terms of thrust, not torque. The 747 has undergone several engine redesigns. The Pratt & Whitney JT9D engine series varies from a maximum thrust of 46,300 to 50,000 lbf.
umm, no, that will never, ever happen, you would be sucked into the engine before there would a chance at that.
The Boeing 747-400 series have a PW4000 turbofan engine aircraft. Each 747 carries 4 of them; 2 on each wing.
This information should be available on the Boeing website or other avaition-related websites. For a quick answer, I will related my experiences from 1970's. Boeing certified the B747-200 to operate with General Electric CF6-50 engines. During take-off power, each GE engine could produce 56,000 lbs of thrust per enginer: or 224,000 lbs for a few minutes. Now, the larger B747-400 a/c have more powerful engines. Currently each engine on a Boeing 747-400 can generate a maximum of about 63,300 lbs of thrust. Accordingly, since this aircraft has four engines it can produce total thrust of about 253,000 lbs.
125000 hp
All of those Boeing aircraft are twin jet except the 747 which has 4.
The GEnx-2b engine was developed by General Electric Aviation. It is part of the GEnx family of jet engines designed for Boeing's 787 Dreamliner and 747-8 aircraft. The engine is known for its advanced technology, fuel efficiency, and lower emissions compared to previous engine models.