4 ms·
90 - 120 hours is the target MTBF for a jet engine? _mind blown_ glad I am not in aeronautics.
by knowuh 11y ago
90 - 120 hours is the target MTBF for a jet engine? _mind blown_ glad I am not in aeronautics.
- userbinator 11y agoAn engine for a military application has very different characteristics from that of a commercial passenger plane. The MTBF for the latter is in the 100k+ hours, with servicing usually performed around 10k.
- chefkoch 11y agoyou service an aircraft engine after 416 days of non stop flying?
- dbloom 11y agoIn this case, "servicing" was probably referring to a heavy maintenance check. There are several different tiers of checks, ranging from short frequent ones, to expensive, time consuming, infrequent ones: http://en.wikipedia.org/wiki/Aircraft_maintenance_checks http://en.wikipedia.org/wiki/Aircraft_maintenance_checks Usually, older aircraft that are being phased out are mothballed shortly before their next heavy maintenance check. And the resale value of used aircraft, especially older ones, is heavily influenced by how soon the next D check is.
- gte525u 11y agoMTBF generally doesn't imply that the engine is either inoperable or completely failed. MTBCF, MTTF, or other metrics measure that. The MTBF for a military aircraft as a whole system in general would likely be pretty low since it's composed of so many systems. In essence, something is likely degraded on the aircraft at any given time. That is why there are dual redundancies and easily swappable units.
- josu 11y agoWhy use the mean and not the median? I would think that the likelihood of something failing is much higher during the first few hours than once it has been flying for a 100 hours.
- SG- 11y agoWhat sucks even more is that the F35 is a single engine. It's going to be replace a lot of jets that currently have 2 engines.