1969-02-01

Evolution of the Pratt & Whitney Aircraft JT9D Engine Oil System 690425

Extensive commercial airline experience coupled with state-of-the-art advances in mechanical component technology has resulted in an oil system design for the Pratt & Whitney Aircraft JT9D engine which is optimized for the simplicity, dependability, and maintainability features required by the current trend toward longer time intervals between scheduled overhauls sought by the commercial airlines.

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