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Compressor: 3-stage axial and 1-stage centrifugal (each gas generator) Combustors: Reverse flow annular combustor; Turbine: 1-stage gas generator turbine + 1-stage free-power turbine (each gas generator) Fuel type: Aviation Kerosene, such as Jet A-1, JP-4 or JP-5; Oil system: Pressure spray at 80 psi (5.5 bar) with return
By October 2016, 2.6 million hours had been logged by 1,400 in service engines and it has a 99.9% dispatch reliability rate. Average fuel consumption is about 950 lb. per hour for a 7,765 lbf engine on a G280 , to be compared to 875 lb. per hour for a 4,420 lbf TFE731 on a G150 . [ 3 ]
Fuel can also flow via the flapper check valves into the wing tanks, but the lower half of the fuel in the tip tanks must be transferred with the jet pump. Most Learjet 25 aircraft were fitted with a fuselage tank. The fuselage tank can be filled by the wing boost pumps through the transfer line and the fuel transfer valve.
The transfer of approximately 1 ⁄ 3 [43] of the power available for hot nozzle thrust to the lift fan reduces the temperature and velocity of the rear lift jet impinging on the ground. [43] The F-35 can achieve a limited 100% throttle cruise without afterburners of Mach 1.2 for 150 miles (240 km; 130 nmi).
The PW530A, rated at 2,887 lbf (12.84 kN), entered service in February 1997 on the Cessna Citation II Bravo, and the PW545 in July 1998 on the Cessna Citation Excel. The PW535 powered the Cessna Citation V Encore in September 2000, and was selected for the Embraer Phenom 300 , first delivered in December 2009.
The BR710 comprises a 48 in (120 cm) diameter single-stage fan, driven by a two-stage LP turbine, and a ten-stage HP compressor (scaled from the V2500 unit) driven by a two-stage, air-cooled, HP turbine. This engine has a thrust-specific fuel consumption (TSFC) of 0.39 lb/(lbf⋅h) (11 g/(kN⋅s)) at static sea level takeoff and 0.64 lb/(lbf⋅ ...
The engine has a wide-chord swept fan, two-stage low-pressure compressor and counter rotating high-pressure compressor based on a titanium impeller, for a 2,050 lbf (9.1 kN) takeoff thrust. [5] The HF120 engine's components interact with greater efficiency by incorporating 3D aerodynamic design, and its effusion-cooled combustor design emits ...
The engine has a built-in starter-generator to start and supply power to the deck network, and a separate oil system. The PBS TJ150 engine was developed from PBS TJ100 engine utilizing the same outer diameter dimensions and engine weight but has 20% more power. One of the PBS TJ150 engine versions enables landing on salt water. [4]
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