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The Sikorsky S-76 is a medium-size commercial utility helicopter designed and produced by the American helicopter manufacturer Sikorsky Aircraft. It is the company's first helicopter specifically developed for the civilian market. The S-76 was developed during the mid-1970s, originally being designated S-74 but renamed in honor of the U.S ...
This is the case on many large aircraft such as the 747, C-17, KC-10, etc. If you are on an aircraft and you hear the engines increasing in power after landing, it is usually because the thrust reversers are deployed. The engines are not actually spinning in reverse, as the term may lead you to believe.
The engines, designated PW535E1, are rated at 3,478 lbf (15.47 kN)/ [4] Unveiled at the May 2023 EBACE show, the FADEC-controlled PW545D is developed for the Cessna 560XL Ascend variant, to be rated at 4,200 lbf (19 kN) and optimized for improved fuel burn and longer time between overhauls (TBO) up to 6,000 hours. [ 2 ]
The S.76 uses a 4-cylinder engine, with a displacement of 28,353 cm 3 (1,730.2 in 3) (190 mm × 250 mm)(7.48in x 9.84in), providing 290 metric horsepower (210 kW) at 1400 rpm, 4 valves (3 valves the airship engine) starting with trembler coil, 2 spark plugs per cylinder (3 spark plug the aeroship engine), ignition with high voltage magneto BOSCH type DR4/4, and water cooling.
Data from Recreational Power Engineering General characteristics Type: Twin cylinder, two-stroke, in-line, aircraft engine Bore: 76 mm (3.0 in) Stroke: 69 mm (2.7 in) Displacement: 625 cc (38.1 cu in) Length: 377 mm (14.8 in) Width: 450 mm (17.7 in) Height: 383 mm (15.1 in) Dry weight: 73 lb (33.1 kg) with free air cooling, 79 lb (35.8 kg) with fan cooling, including recoil starter and exhaust ...
The S-75 mated an entirely new composite airframe with the twin turboshaft engines, transmission, and main and tail rotors of Sikorsky's S-76A civil transport helicopter. [1] The S-75's floors, roof and most exterior surfaces were of more ballistically-resistant Kevlar , while most of the aircraft's basic load-bearing structure was built of ...
The Turbomeca Arriel is a series of French turboshaft engines that first ran in 1974. [1] Delivering 650 to 1,000 hp (480 to 750 kW), over 12,000 Arriel engines have been produced from 1978 to 2018, logging more than 50 million flight hours for 40 helicopter applications.
The 715 shp TPE331-6 used in the Beech King Air B100 have a 400-hr. fuel nozzle cleaning interval, 1,800-hr. hot section inspection interval and a 5,400-hr. time between overhaul; approval is possible for 3,000-hr. HSIs and 6,000-hr. overhauls and engine reserves are cheaper than for the PT6A.