PPRuNe Forums - View Single Post - F-35 Cancelled, then what ?
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Old 4th Feb 2020, 09:22
  #12070 (permalink)  
weemonkey
 
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Originally Posted by tdracer
Maybe not visually, but titanium bolts feel like feathers compared to steel or Inconel bolts - they are much lighter...
I've used both and I can't imagine not noticing the difference in weight - even on small (10/32) bolts.

Don't think, just do...what the drawing says..

"Hundreds of F-35s could have the wrong fasteners in “critical areas,” according to the Defense Contract Management Agency. But F-35 builder Lockheed Martin says the problem may not need to be fixed.“All aircraft produced prior to discovery of this [problem] have titanium fasteners incorrectly installed in locations where the design calls for Inconel,” the F-35 Joint Program Office said in an email in response to a query from Air Force Magazine. “Because of this, the engineering safety analysis of the issue has assumed that each critical F-35 joint was assembled with the incorrect fasteners.”

Boeing levels of assumption (not to mention quality controls) being displayed there..slap some paint over the top no one will spot it..

To paraphrase Joe Stalin "corrosion has a quality all of its own"

wonder if the weight reduction program may have led to an proposal drawing actually being adopted???




Last edited by weemonkey; 4th Feb 2020 at 09:35.
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