F-35 and the "Crack"-pots of Doom...Again.

They never learn.

At least it seems that way.

If the F-35 is 'plagued' by anything, it is plagued by critics who haven't a clue as to how Airframe Durability testing is conducted, what its objectives are, and how it fits into the modern aircraft development process. It seems this ignorance 'dooms' the F-35 program to an annual round of misplaced and sneering derision by people who have no idea they are broadcasting their own ignorance after every DOT&E report release.

Durability Testing Promotes the Useful Life.

Amusing as it is, such unwarranted criticism is counter-productive. I could produce a lengthy dissertation (you know I can) on the history and benefits of this kind of testing, and show how the developments to-date for the F-35 are no different than the programs before it --except for the F-35 doing it perhaps better and in a bigger fish bowl --but that would bore the cr*p out of most people.On top of that, the unrepentant anti-JSFers would only claim I was making excuses or some other equally stupid assertion. So I will default to providing an illustrative example of what I mean. Consider the following passage concerning the EARLY F-16 development (Queen's English BTW).

Fatigue tests 

In parallel with the flight-test programme a series of ground fatigue trials were carried out on the fifth development airframe. A test rig set up in a hangar at Fort Worth used more than 100 hydraulic rams to apply stress to an instrumented airframe, simulating the loads imposed by takeoff, landing and combat manoeuvering at up to 10g. By the summer of 1978, this airframe had clocked up more than 16,000 hours of simulated flight in the rig. These tests were carried out at a careful and deliberate pace which sometimes lagged behind schedule. 

As the tests progressed, cracks developed in several structural bulkheads. News of this problem resulted in hostile comments in the media, but GD pointed out in its own defence that the cracks had occurred not in flying aircraft but on ground test specimens. If the risk of such cracks during development testing was not a real one, a company spokesman remarked to the author at the time, no-one would be willing to pay for ground structural test rigs. GD redesigned the affected components, thickening the metal, and installed metal plates to reinforce existing units.  

--Source: F-16: Modern Fighter Aircraft Vol 2., Pg 18. ARCO Publishing, 1983.

Sounds kinda' familiar doesn't it?

I was tempted to employ some trickery to deceive the reader into thinking the above was written about the F-35, but I think this point is better made straight up.  Even after this testing, because the F-16 was initially the ultimate knife-fighting hot rod of a dayfighter, there were useful-life 'issues' on the early airframes. Pilots were flying higher G-loading at several times the rate as previous fighters and higher percentages of the time than that for which the airframe had been designed.