| Secondary Power |
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| Írta: Sabc | |||||
The CGB provides mechanical connection between the JFS and the hydraulic accumulators. The JFS is spun by a hydraulic motor powered by the two hydraulic accumulators. For more details on starting the JSF, see article on the Jet Fuel Starter (JFS). Once the JFS started it transmits power to the left or right AMAD via the CGB, this latter providing the necessary gearing and clutching functions. One AMAD is bolted to each engine and routes power from the CGB during start to the engine itself. Starting engines is a bit complex process, it is described in detail in the article on the Pratt&Whitney F100-PW-220/229 Engines. Once the engines are started, the CGB de-couples from the AMAD, which is then driven directly by the engines one AMAD by each engine. Each AMAD then sustains various hydraulic systems, namely the utility hydraulic pump, power control ( PC) hydraulic pump and integrated drive generator ( IDG). Each AMAD is capable of supporting aircraft systems in the event the other fails. Note that since the F-15E is a twin-engine fighter, the F100-PW-220/-229 Engines were designed to be interchangeable, thus eliminating the need to manufacture different type (i.e. left side and right side) engines. However interchangeability does not include the AMADs. Because of the different way they are mounted to the airframe, there are left and right side AMADs. Sources
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| Módosítás dátuma: 2011. május 30. hétfő |
The secondary power system provides two main functions: to power the aircraft for starting and then to provide power to the aircraft accessories once the engines are self sustaining. The secondary power system consists of the Jet Fuel Starter (JFS), two hydraulic accumulators, a central gearbox (
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