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F-22 reliability



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falcon17
PostPosted: Feb 01, 2012 - 11:48 PM Reply with quote Back to top
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Has it become easier to maintain and more reliable over time?
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That_Engine_Guy
PostPosted: Feb 02, 2012 - 04:38 AM Reply with quote Back to top
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Everything does.

Ask a trucking firm, or tour bus operator; commercial airlines are the same... Look at the hurtles the 747 needed to overcome to become the success it is today...

Cheers TEG

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BDF
PostPosted: Feb 03, 2012 - 12:30 AM Reply with quote Back to top
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It sounds to me that right now the jet just isn't meeting it's expected mature mission capable rates. Hopefully things will improve, especially with the help of those new LO panels the LO shop at langley made during the stand down. We haven't heard much about this issue in a while.

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aaam
PostPosted: Feb 23, 2012 - 04:22 AM Reply with quote Back to top
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Can't figure out how to totally delete a post, so please excuse this sentence.
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1st503rdsgt
PostPosted: Feb 23, 2012 - 05:52 AM Reply with quote Back to top
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With only 187 copies, I doubt it will ever be *easy* to maintain a usable number that's ready to fly.

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aaam
PostPosted: Feb 25, 2012 - 02:11 AM Reply with quote Back to top
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F-22 so far seems to be requiring lots more maintenance than was expected. One of the bigger problems seems to be the skin itself and another is corrosion. Some of the very things set in place to give it it's superb stealth have also come back to bite . For example, the drainage designed to maximize stealth does that, but at the price of not doing that good a job of draining water. A long term solution seems to be to replace the skin with the newer technology design of the F-35 (which was always intended to operate at all times in the "normal" world), but that'll take a while. In the nearer term they are going to use F-35 software to keep track of the panels.

They've also got to be looking at other maintenance issues. Long before the ridiculous cutback in production numbers AF was having to confront the problem of suppliers saying the F-22 market just wasn't big enough for them to continue to put up with the hassles of selling to the government, and while some of the majors have started dealing with them and contracting with them directly and then with the gov't, that's getting expensive. Plus, some of the more "techier" suppliers are just not that interested in this kind of business. For example over 85% of Raptors use 25MHz processors. In a world of 4G hz six core processor chips, it's getting hard to find support. The solution might be to replace these obsolete systems with open architecture ones, ala the F-35, but that'll take a bunch of money upfront, something hard to explain to the short-attention-span politicos in DC.

I don't envy AF on this
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