World’s most powerful jet engines and the aircraft they power

When it comes to the manufacture of new aircraft, engine design and specifications make it to the top of the priority list, amongst other things. With the world leaning towards a more environment-friendly and carbon-neutral scenario, energy-efficient engines with higher reliability have been the goal for most engine manufactures. Let’s take a look at the powerful engines today and what aircraft they power:

GE9X

general electric

The GE9X is a variant of its predecessor, the GE90, and is currently the biggest engine to power a commercial airliner to date. Specifically designed for the B777X, it has a thrust output of 134,500 lbs at maximum, although it is currently certified for only 105,500 lbs. The GE9X has a diameter comparable to that of a B737 fuselage. Designed out of carbon-composite fibres, it is expected to deliver an efficiency of 10% over its predecessor, mainly due to its high bypass ratio of 10:1. Having received its FAA type certification on September 25, 2020, the engine is expected to enter service by 2022.

TYPEDual rotor, axial flow, high bypass turbofan
COMPRESSOR1 fan, 3-stage LP, 11-stage HP
TURBINE2-stage HP, 6-stage LP
BYPASS RATIO10:1
WEIGHT21,230 lb (9,630 kg)
THRUST134,500 lbf
FAN DIAMETER134 in (340 cm)
RPMLP 2355, HP 9561
VARIANT- 105B1A

GE90

general electric

The GE90 was the world’s largest engine until it was taken over by its successor, the GE9X. This was designed for the older variants of the B777 family– B777-200/300 , B777-200LR/300ER. Although certified for 115,000lbf, it can generate thrusts up to 127,900 lbf. The most powerful ones are the GE90-115B/110B found on the B777-300ER and B777-200LR/B777F respectively.

TYPE Dual rotor, axial flow, high bypass turbofan
COMPRESSOR 1 fan, 4-stage LP, 9-stage HP
TURBINE 2-stage HP, 6-stage LP
BYPASS RATIO 9
THRUST 127,900 lbf
FAN DIAMETER 128 in (330 cm)
WEIGHT 19,316 lb (8,762 kg)
VARIANT--110B1/-113B/-115B

PRATT AND WHITNEY PW4000-112

pratt & whitney

Certified by the FAA in 1986, the PW 4000 series offers between 50,000 to 99,094 lbf of thrust. These dual-spool, axial flow, high bypass turbofan engines are used to power the Airbus A300-600, A310-300, Boeing B747-400, B767-200/300, and also the Macdonell Douglas MD11. The PW4000-112 was re-engineered to fit the Airbus A380, as a part of the Engine Alliance GP7000 engine with GE.

TYPETwo spool high bypass ratio turbofan
COMPRESSOR1 fan, 7 LP, 11 HP
TURBINE2 HP, 7 LP
FAN112 in (284 cm)
THRUST91,790–99,094  lbf
BYPASS RATIO5.8-6.4:1
WEIGHT16,260 lb , 7,375 kg
VARIANT- PW4000-112

ROLLS ROYCE TRENT XWB

rolls royce

Yet another axial flow, high bypass turbofan engine, specifically designed to power the A350 family. XWB-84 and XWB-97 are the two variants currently in service and they power the A350-900 and A350-1000 respectively. The XWB-97 being the more powerful of the two produces a massive 97,000lbs of thrust. The A350-900, powered by the XWB-87 has been able to operate ultra-long-haul routes owing to its unparalleled fuel efficiency and an impeccable dispatch reliance of 99.6%.

TYPEThree-shaft, high bypass ratio, axial flow, turbofanThree-shaft, high bypass ratio, axial flow, turbofan
COMPRESSOR 8-stage IP, 6-stage HP8-stage IP, 6-stage HP
TURBINEsingle stage HP, 2-stage IP, 6-stage LPsingle stage HP, 2-stage IP, 6-stage LP
BYPASS RATIO9.6:19.6:1
FAN1-stage, 3.00 m / 118″ diameter, 22 blades1-stage, 3.00 m / 118″ diameter, 22 blades
THRUST84,200 lbf (375 kN)97,000 lbf (431 kN)
VARIANTS: -84 / -97


ROLLS ROYCE TRENT 800

photo credits : curimedia photography

The TRENT 800 was Rolls Royce’s offer to the B777 family. With a bypass ratio of 6.4:1,
it is one of the lighter options presented to B777 as compared to the GE90 and the PW4000-according to Rolls Royce. Capable of producing 95,000lbf of thrust at maximum, Trent 800 weighs (13,400 lb) while the GE90 is 17,400 lb, and the PW4000 is 16,260 lb.

TYPEThree-shaft high bypass turbofan engine
COMPRESSOR Eight-stage IP axial compressor, six-stage HP axial compressor
TURBINESingle-stage HP turbine, single-stage IP turbine, five-stage LP turbine
THRUST76,580-92,940 lbf
BYPASS RATIO6.4:1

ROLLS ROYCE ULTRAFAN

rolls royce

Expected to be completed by the end of 2021, the UltraFan prototype includes the world’s largest fan rotor blades, made from composites. ULTRAFAN would be the world’s largest aero-engine, expected with a fuel efficiency of an impressive 25% over its Trent predecessors. Work has already commenced at its Derby location, UK-which also happens to be the world’s largest facility for engine testing. ULTRAFAN’s efficiency will help improve the economics of an industry transition to more sustainable fuels. In fact, the first engine test run would be made entirely on SAF. (sustainable aviation fuel)


Key engineering features include:

  • Carbon titanium fan blades and a composite casing that reduce weight by up to 1,500lb per aircraft.
  • Advanced ceramic matrix composite (CMC) components that operate more effectively in high pressure turbine temperatures.
  • A geared design that delivers efficient power for the high-thrust, high bypass ratio engines of the future

Responses

Feed
Jobs
News
Magazine