posted on Nov, 28 2016 @ 05:01 PM
The Developmental F-35 aircraft (non-production test) have been pushed so hard in testing that they are to undergo a Service Life Extension. This will
provide several advantages to the program, among them, allowing the DT aircraft to undergo concurrency upgrades they were too busy to do at the time.
The aircraft were designed with an 8,000 hour life cycle, and the most flown aircraft is only at about 1200 hours, but they've been pushed hard, right
up to the limits of their envelope, which puts much more strain on the aircraft. Lockheed will examine each airframe to study the fatigue process on
them, to try to get a better understanding of how the airframe is aging.
edit on 11/28/2016 by Zaphod58 because:
(no reason given)