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R407C offers several notable benefits: Replacement for R22: Often used as a direct substitute for R22 in many existing systems, facilitating upgrades with minimal system modifications. High Efficiency: Provides effective cooling with good energy efficiency.
R22: 7300–7749 1957–1958 ... Door operator mechanism R65: Pump cars PC01–PC03 ... Replace Coney Island Yard cranes (planning MW104111)
The car lost its original number plates and now bears number plates from other retired R22 subway cars (7370, 7373, 7435, and 7460). 7422 – converted to R95 revenue collection car 1R714. The car was retired in 2006 and is now preserved by the New York Transit Museum. [3] A handful of R22 cars are currently in work service:
The R22 HP was fitted with a 160 bhp Lycoming O-320-B2C engine, an increase of 10 bhp (7.5 kW) over the original R22. The steel-tube frame on the R22 Alpha was modified by extending the aft landing-gear mounting points, giving it a slightly nose-down attitude on the ground and better matching of the skids to the ground in a low-altitude hover ...
The Frag 5 armor upgrade included four 600-pound doors with additional plating of homogeneous steel armor, battle-tested with the Marine Armor Kit on the HMMWV A2 series. [3] Frag Kit 5 helped slow the incoming projectile and contain some of the shrapnel, preventing the vehicle from becoming a secondary source of fragmentation during attacks.
Chlorodifluoromethane or difluoromonochloromethane is a hydrochlorofluorocarbon (HCFC). This colorless gas is better known as HCFC-22, or R-22, or CHClF 2.It was commonly used as a propellant and refrigerant.