Engine Development Test Hours

Back when engineering departments dominated engine manufacturing companies, a powerplant was not certified for flight until it had run well more than 10,000 hr. in development test cells and in flight. For example, both the Rolls-Royce RB211-22 and Pratt & Whitney JT9D-3 had around 14,000 hr. of...

Subscription Required


This content requires a subscription to one of the Aviation Week Intelligence Network (AWIN) bundles.

Schedule a demo today to find out how you can access this content and similar content related to your area of the global aviation industry.

Already an AWIN subscriber? Login


Did you know?  Aviation Week has won top honors multiple times in the Jesse H. Neal National Business Journalism Awards, the business-to-business media equivalent of the Pulitzer Prizes.