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"The plane was manufactured in 1987 and has been flown 454 hours and 24 Minutes of the estimated 5000 hours it is capable off." Anyone know why there is a 5000
by nickmccann 13y ago
"The plane was manufactured in 1987 and has been flown 454 hours and 24 Minutes of the estimated 5000 hours it is capable off."
Anyone know why there is a 5000 hour limit?
- edwhitesell 13y agoProbably before the next round of maintenance.
- chiph 13y agoThe maintenance service costs at that number of flight hours probably exceeds it's economic value.
- ballard 13y agoYup. It's purely badass value.
- ars 13y agoThe aluminum skin and wings fatigue. It's more a certain number of takeoff and landings rather than flight time. After that the metal is too weak and unsafe. Each time the cabin pressure changes the skin moves. Each time it takes off or lands the wings flex. They probably flex during flight as well. First link I found: http://www.economist.com/blogs/babbage/2011/04/aircraft_fatigue http://www.economist.com/blogs/babbage/2011/04/aircraft_fati...
- coin 13y agoThat still doesn't explain the low total time limit. 5000 hours is low compared to the typical 50000+ hours that modern jets are rated for.
- dragonwriter 13y agoModern jets aren't prop-driven Soviet strategic bombers. They are typically built for comfortable, cost-effective, long-term operation, not to be a credible threat to deter (or carry out) a life-or-death war with an economically far more advanced adversary.
- hristov 13y agoThey are probably referring to the engines. Engines are rated in hours.