https://www.military.com/daily-news...causing-osprey-clutch-failures-2010.html

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An effort to redesign the input quills first kicked off in 2017 though it would fail three years later in 2020, the document explained. Another redesign effort began in 2022 and continues to this day. However, neither effort included an actual fix, and the cause of HCEs is still unknown.

Complicating these efforts is the fact that, according to the Marine Corps document, the service hasn't been successful in recreating an HCE in a lab environment where they could document the exact chain of events that causes the problem.

A double HCE -- the kind of incident that downed Swift 11 -- is even harder to duplicate. In fact, the document makes clear that at the time Swift 11 went down, the Corps wasn't aware that such a thing was even possible. The service hadn't seen any models or simulations that suggested that both of the aircraft's clutch assemblies failing simultaneously was feasible.

Despite that, between data within the document and other Marine Corps sources, it appears that out of all 16 known instances of hard clutch engagements in the military, two incidents -- Swift 11 and one other incident -- involved a double HCE.

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How should the Marines involve outside help?

I am reminded of the retired KY x-ray radiologist who looked over the “Otzi the 5000 year old Iceman” scans and told them they were missing an arrowhead in Otzi’s shoulder.
Later, Otzi’s keepers admitted “We cannot find Otzi’s stomach”
and the same retiree found the missing stomach position.

There is something to be said for experience which can only be gained with age But in todays world I'm sure there's an App for than

The Marine corps. never wanted those hunks of junks, it was force on them by the politicians including, i believe the President at that time

Refreshing old memories, North Carolina newspapers reported on the enlisted Marines that “whistleblew” on the Titanium metal hydraulic lines that where originally impossible to keep combat ready.

Was watching a YouTube with Tyler Gray, actor on the TV series Seal Team. He’s a retired Delta operator who suffered a career ending injury in Iraq. He doesn’t have a lot of good things to say about the Marine leadership during the Battle of Fallujah.


https://www.youtube.com/watch?v=zmRK8q7-IuU

If you want an example of Marine Corps “senior leadership” questionable behavior,
“Sandy” Bonnyman’s buried body is near the top of the list:

https://en.wikipedia.org/wiki/Alexander_Bonnyman_Jr.

I see them flying around Hurlburt Field every time I visit. I guess AFSOC has some use for them.

Program began in 1981. Army was initially in charge, Navy/Marines took over in 1983. Congress was under split control during that entire time.

Hard Clutch Engagement HCE
would seem to be a type of “transmission universe” challenge.

Who are the world’s best transmission failure experts?

It does not seem like “top secret” kinda parts
so creating a video explaining the failure
and showing it to USA/NATO
industrial transmission professionals
would seem less risky than having more failures.

Rhinodart?

Another Osprey crashed in Australia this morning. Three Marines died and 20 were injured. The clutch is being blamed.

https://www.foxnews.com/world/us-mi...over-australia-killing-3-injuring-others

https://responsiblestatecraft.org/v22-osprey/

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The military has known about the gearbox and clutch problem since 2010, when an Air Force Osprey crash killed four people and injured many others. But as my colleague Mark Thompson has pointed out, this particular mechanical challenge greatly resembles those of older helicopters — the 67 UH-1 Huey and AH-1 Cobra in particular — which faced rotor issues that “killed hundreds of troops between 1967 and 1983.”

In the case of those aircraft, the rotors didn’t just disengage, but in some cases separated from the aircraft entirely. With that terrifying imagery in mind, imagine watching the military blame a crash on pilots no longer around to defend themselves.

Another through line between the Osprey, the Huey, the Cobra, and even the CH-53E is the tendency for the services to attribute mishaps to pilot error.

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