Requirements on Lubrication Oil from the View of a Helicopter Manufacturer,
MESSERSCHMITT-BOELKOW-BLOHM G M B H MUNICH (GERMANY F R)
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Experience with known oil types, used in helicopters for transmissions, engines, hydraulics and brakes has shown that 3 main characteristics if available, would improve drastically the performance of the aircraft. These 3 main characteristics are The same type of oil should be usable for all the above mentioned systems. The oil brands, produced according to a common specification, but by different manufacturers, should be mixable without restrictions and Some features of the oil, which are specially important for helicopter operations, should be improved.