The F-35 thread

This guy seems to have a grasp of what makes the F-35 different: sensor fusion. I have no clue who he is, but he speaks with a Russky-sounding accent and he seems to have some knowledge of non-Western military aviation. He seems to be based in the UK.

 
Dave said:
Why the feck did he eject? It looks like the plane was coming to a stop as he did.
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If you watch it again you can hear the engine running until he ejects. It sounds like something got seriously messed up after the impact. I don't know about the specifics on the F-35 but during ejection training on the L-39 we were told that ejecting from a single-seater aircraft kills the hydraulics and fuel system effectively shutting everything down. It was built into the systems after some early ejections where the aircraft often used to continue flying on their own after the pilot ejected.

Looks like the pilot made the right call there by ejecting if the system had gone haywire and wasn't responding to his control inputs.
 
Wut said:
If you watch it again you can hear the engine running until he ejects. It sounds like something got seriously messed up after the impact. I don't know about the specifics on the F-35 but during ejection training on the L-39 we were told that ejecting from a single-seater aircraft kills the hydraulics and fuel system effectively shutting everything down. It was built into the systems after some early ejections where the aircraft often used to continue flying on their own after the pilot ejected.

Looks like the pilot made the right call there by ejecting if the system had gone haywire and wasn't responding to his control inputs.
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Pulling the ejection cord is like hitting ctrl-alt-del?
 
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Wut said:
If you watch it again you can hear the engine running until he ejects. It sounds like something got seriously messed up after the impact. I don't know about the specifics on the F-35 but during ejection training on the L-39 we were told that ejecting from a single-seater aircraft kills the hydraulics and fuel system effectively shutting everything down. It was built into the systems after some early ejections where the aircraft often used to continue flying on their own after the pilot ejected.

Looks like the pilot made the right call there by ejecting if the system had gone haywire and wasn't responding to his control inputs.
Click to expand...

Ah, ok, I watched it without sound.
 
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Dave said:
https://twitter.com/x/status/1603473809704615936
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Why would he disengage the liftfan after the bounce? That would be like a Chinook bouncing on landing and the pilot shutting down the front engine down to recover (It wouldn't make sense). Way too early to blame the pilot, especially with him apparently being a test pilot who would know the system inside out. I say mechanical failure of the driveshaft to the liftfan is more likely or something coming loose on the bounce jamming it.
 
Some information on the ejection system of the F-35B which includes an automatic feature if certain criteria is met.
The circumstances surrounding a mishap involving a Lockheed Martin-owned F-35B Joint Strike Fighter last week, in which a still unnamed U.S. Air Force pilot at the controls at the time was able to safely eject and suffered no serious injuries, remain under investigation. However, the incident, dramatic video footage of which was captured at the time, makes it worthwhile to discuss an obscure feature on the aircraft: an 'auto eject' system that can engage the jet's Martin-Baker US16E ejection seat without direction under very particular circumstances.
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Source
 
Seems like a faulty tube in the fuel system caused the crash.

www.defensenews.com

Pentagon grounds some F-35s after ejection on Texas runway

The F-35 Joint Program Office told services a fuel tube failure may have caused an F-35B's crash, which has now led to some fighters being grounded.
www.defensenews.com www.defensenews.com

The source said that, in guidance to the services, the JPO said a failure of a tube used to transfer high-pressure fuel in the fighter’s F135 engine prompted the office to update its safety risk assessments.

The JPO also told the services that jets with fewer than 40 hours of flying are affected, this source said.
 
Blu82 said:
Some information on the ejection system of the F-35B which includes an automatic feature if certain criteria is met.


Source
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The Soviets also found that an automatic ejection system was required for their Yak-38 VTOL aircraft. This engaged if the front lift engines were compromised. Appaerntly things happened so quickly after a failure that the pilot would not be able to eject manually if the aircraft was close to the ground. This system can be seen operating towards the end of the video (0:30):

 
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