F-35 Test Fleet Struggling with Low Readiness Rates

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wrightwing

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Unread post19 Aug 2019, 20:26

swiss wrote:
marauder2048 wrote:
swiss wrote:So we talk about old news here.


Does any Air Force evaluating a new aircraft concern itself with Operational Test fleet availability?

Range and other test asset availability especially for the more challenging
portions of the test plan pose a much greater constraint.


Agreed.

Problem is. When such news appears, it may influence the vote on the new fighter aircraft. Even if it should only affect the test fleet.

@weasel1962
@wrightwing

Thanks for the links. This figures looks way better. And if we look at the mission capable rates for the SH, its definitely not a specific "F-35 problem". But why is there such huge difference to the Testfleet?


Different blocks, and supply chain have been the biggest issues. All early block jets are being brought up to 3F, though. This should help improve the overall fleet averages.
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swiss

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Unread post19 Aug 2019, 21:46

wrightwing wrote:
Different blocks, and supply chain have been the biggest issues. All early block jets are being brought up to 3F, though. This should help improve the overall fleet averages.


Ok. Thanks for your answer.
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element1loop

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Unread post20 Aug 2019, 01:58

Accel + Alt + VLO + DAS + MDF + Radial Distance = LIFE . . . Always choose Stealth
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jacarlsen

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Unread post20 Aug 2019, 09:50

Do the early F-35 blocks any bigger mod programs like the early F-16s had with Pacer Loft 1 and 2 or is it just plug and play loading of 3F software?
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weasel1962

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Unread post20 Aug 2019, 10:35

Different plane, different issues. If one looks at the changes from F-16 Blk 1 to Blk 10, clearly those issues aren't replicated in the F-35. The F-35 does have other issues, hence the upgrades from Blk 1A to 2B to 3F today. Those include some minor structural changes (particularly joints).
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vilters

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Unread post21 Aug 2019, 08:31

The more stuff you put in an airframe the lower the MTBF.
Why is that so difficult to understand?
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marauder2048

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Unread post21 Aug 2019, 21:43

vilters wrote:The more stuff you put in an airframe the lower the MTBF.
Why is that so difficult to understand?


On the other hand, the probability of being mission capable for *a* mission is higher.
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wrightwing

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Unread post22 Aug 2019, 03:37

vilters wrote:The more stuff you put in an airframe the lower the MTBF.
Why is that so difficult to understand?

That's not the issue. Mixed fleets/blocks, and subcontractors ramping up their spare parts production, (along with ALIS) has been the hold up. All early block jets are scheduled to be brought up to 3F, which should largely eliminate the issues.
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SpudmanWP

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Unread post22 Aug 2019, 03:49

Countdown to October 2021 :mrgreen:
"The early bird gets the worm but the second mouse gets the cheese."
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XanderCrews

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Unread post22 Aug 2019, 20:33

vilters wrote:The more stuff you put in an airframe the lower the MTBF.
Why is that so difficult to understand?


explain it. I'm curious
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vilters

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Unread post23 Aug 2019, 11:31

wrightwing wrote:
vilters wrote:The more stuff you put in an airframe the lower the MTBF.
Why is that so difficult to understand?

That's not the issue. Mixed fleets/blocks, and subcontractors ramping up their spare parts production, (along with ALIS) has been the hold up. All early block jets are scheduled to be brought up to 3F, which should largely eliminate the issues.


You sound like Boeing. LOL.

They are also trying to fix a hardware issue (failing AOA probes) with a software update on their 737 disaster.
What they should do in the FIRST PLACE is install better AOA probes. AND fix the software.
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wrightwing

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Unread post23 Aug 2019, 14:21

vilters wrote:
wrightwing wrote:
vilters wrote:The more stuff you put in an airframe the lower the MTBF.
Why is that so difficult to understand?

That's not the issue. Mixed fleets/blocks, and subcontractors ramping up their spare parts production, (along with ALIS) has been the hold up. All early block jets are scheduled to be brought up to 3F, which should largely eliminate the issues.


You sound like Boeing. LOL.

They are also trying to fix a hardware issue (failing AOA probes) with a software update on their 737 disaster.
What they should do in the FIRST PLACE is install better AOA probes. AND fix the software.

No, I sound like what the problem is. There is different hardware, etc.... on early block jets. You may be familiar with terms like economies of scale, etc... especially in regard to spare parts inventories, jets being upgraded, etc.....
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