UK MOD in a muddle over F-35C

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zhangmdev

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Unread post09 Dec 2021, 20:58

https://news.usni.org/2021/12/09/u-k-ca ... deployment

HMS Queen Elizabeth (R08) and escorts of the Royal Navy Carrier Strike Group 21 (CSG 21) returned to their home ports in HMNB Devonport and HMNB Portsmouth marking the end of its seven-month maiden deployment.

The U.K. air elements of CSG 21 flew home yesterday and today, with the Merlin helicopters of 820 Naval Air Squadron and 845 NAS returning to Royal Naval Air Station Culdrose and RNAS Yeovilton, respectively, yesterday. The Wildcat helicopters of 815 NAS returned to RNAS Yeovilton yesterday. The Royal Air Force 617 Squadron “The Dambusters” arrived home at RAF Marham today.

The “Wake Island Avengers” of U.S. Marine Fighter Attack Squadron (VMFA) 211 arrived home at Marine Corps Air Station Yuma yesterday after departing from CSG 21 last month.

VMFA-211 and the 617 squadron completed more than 1,278 sorties, flew more than 2200 hours, and conducted 44 combat missions
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Unread post09 Dec 2021, 22:41

steve2267 wrote:Putting my systems engineering hat on... I would do it thusly: when in Mode 4... if I come across an "OH SH*T" condition, I punch the pilot out without waiting. ("OH SH*T" by definition meaning non-recoverable.)

But that is pure engineering conjecture on my part.


:thumb:

The propulsion system knows the thrust split between the lift fan and the main engine. It also knows the vector angles of both the vavbn, and the main engine 3bsd. Whole buncha other stuff internal to the workings of both the lift fan and the main engine (eg LF IGV angles). The jet knows airspeed, ground speed, aoa, flight path angle, side slip, weight-on-wheels, and body axis motions (eg pitch direction, magnitude and rate). Gotta believe some combination of that stuff would be part of the activation logic.
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Unread post11 Dec 2021, 18:37

Don't be phased by the thumbnail initial view of this great collection of QE photos. Click on a photo to view high quality:

http://korearms.egloos.com/m/1304274 EXAMPLE: http://pds18.egloos.com/pds/202108/03/6 ... 588194.jpg (1Mb)
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QErasF-35BoffSkiJump.jpg
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Unread post08 Jan 2022, 08:37

quicksilver wrote:
steve2267 wrote:Putting my systems engineering hat on... I would do it thusly: when in Mode 4... if I come across an "OH SH*T" condition, I punch the pilot out without waiting. ("OH SH*T" by definition meaning non-recoverable.)

But that is pure engineering conjecture on my part.


:thumb:

The propulsion system knows the thrust split between the lift fan and the main engine. It also knows the vector angles of both the vavbn, and the main engine 3bsd. Whole buncha other stuff internal to the workings of both the lift fan and the main engine (eg LF IGV angles). The jet knows airspeed, ground speed, aoa, flight path angle, side slip, weight-on-wheels, and body axis motions (eg pitch direction, magnitude and rate). Gotta believe some combination of that stuff would be part of the activation logic.

Further to info about F-35B 'auto eject' with strings attached to the pilot see 2 page PDF attached.

F-35 Subsystems Design, Development & Verification 2018
"US16E arm & leg restraints A second feature of the US16E ejection seat is the active arm and leg restraint. To minimize injury due to arm and leg flail during ejection, the US16E actively restrains the pilot’s arms and legs during ejection. It uses fabric lines that are integrated into the pilot’s flight ensemble. During ejection, the legs are drawn back and the arms are drawn to the lap and held until the lines have been severed. Figure shows the US16E arm and leg restraint system." &
Ejection System "The auto-escape system is configured in the F-35B only for the event of catastrophic failure of the LiftFan®. Such a failure can produce a rapid onset of forward pitch accelerations, perhaps exceeding the pilot’s ability to react and manually eject. The system is designed to provide detection of inertial attitudes and rates in the pitch-down plane within tolerances to filter out normal flight control input and response. The detection occurs in the control law software application of each VMC [vehicle management computer] during conditions in which the system is armed."
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Auto Eject & Arm & Leg Restraints F-35 Subsystems Design, Dev & Verification PRN pp2.pdf
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F-35ejectionSeatRestraints.jpg
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zhangmdev

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Unread post08 Jan 2022, 14:00

There are reports claiming both HMS Queen Elizabeth and HMS Prince of Wales will be operationally deployed in 2022. Any more details?
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Unread post08 Jan 2022, 16:44

Why not cite the 'reports'?
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zhangmdev

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Unread post08 Jan 2022, 16:58

A few last year's news I just found:

https://www.hampshirelive.news/news/ham ... ce-6346667

The news was announced on Friday (December 10) in the following tweet: "The UK Carrier Strike Group returns in 2022 with HMS Prince of Wales and HMS Queen Elizabeth deploying with our @NATO and international partners. #CSG21"

https://www.overtdefense.com/2021/12/14 ... d-in-2022/

The United Kingdom’s Ministry of Defense has announced that both of the Royal Navy’s aircraft carriers, HMS Queen Elizabeth and HMS Prince of Wales, will be operationally deployed next year.
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Unread post08 Jan 2022, 17:15

Thanks. I would like to know when more SRVL tests will be carried out as noted earlier by HMS Prince of Wales.
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timmymagic

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Unread post10 Jan 2022, 23:54

zhangmdev wrote:A few last year's news I just found:

https://www.hampshirelive.news/news/ham ... ce-6346667

The news was announced on Friday (December 10) in the following tweet: "The UK Carrier Strike Group returns in 2022 with HMS Prince of Wales and HMS Queen Elizabeth deploying with our @NATO and international partners. #CSG21"

https://www.overtdefense.com/2021/12/14 ... d-in-2022/

The United Kingdom’s Ministry of Defense has announced that both of the Royal Navy’s aircraft carriers, HMS Queen Elizabeth and HMS Prince of Wales, will be operationally deployed next year.


Queen Elizabeth will be getting a fair amount of maintenance following CSG21. HMS Prince of Wales will be doing Westlant later this year (operations off the East Coast of the US with the ITF aircraft).

You're not going to see 2 carriers with serious numbers of F-35 on this year, UK numbers should hit 23 F-35 in the UK by the summer and 26 at the end of the year. Focus will remain on training and participation in nearby exercises, likely with a larger helicopter complement to trial that capability.
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Unread post10 Jan 2022, 23:55

spazsinbad wrote:Thanks. I would like to know when more SRVL tests will be carried out as noted earlier by HMS Prince of Wales.


Prince of Wales will be undertaking Westlant this year, postponed from last year. So expect a visit to Norfolk and Mayport. If any SRVL trials happen it will be then using the ITF aircraft.
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Unread post11 Jan 2022, 06:11

timmymagic wrote:
Queen Elizabeth will be getting a fair amount of maintenance following CSG21. HMS Prince of Wales will be doing Westlant later this year (operations off the East Coast of the US with the ITF aircraft).

You're not going to see 2 carriers with serious numbers of F-35 on this year, UK numbers should hit 23 F-35 in the UK by the summer and 26 at the end of the year. Focus will remain on training and participation in nearby exercises, likely with a larger helicopter complement to trial that capability.



Maybe the USMC will deploy some F-35B's on HMS Prince of Wales???
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Unread post11 Jan 2022, 19:52

"Pride, passion and purpose" as Royal Navy takes on key NATO mission
11 Jan 2022 RN PR

"The Royal Navy today took charge of NATO’s most important task force with a ceremony aboard aircraft carrier HMS Prince of Wales in Portsmouth. For the next 12 months it is responsible for leading the alliance’s Maritime High Readiness Force – an international task group formed to deal with major global events....

...HMS Prince of Wales serving as NATO Command Ship, ready to deploy in support of NATO exercises and operations throughout the year. Those will include major workouts for British and allied forces in the Arctic at the end of the winter, Baltic in the summer, and an extensive deployment to the Mediterranean in the autumn....

...it will be the first test of HMS Prince of Wales since the carrier was declared fully operational at the beginning of autumn following two intensive years of trials and training.... The ship is due to sail tomorrow, raising the curtain of a demanding year in the waters of the Atlantic, northern Europe and Mediterranean...."

Source: https://www.royalnavy.mod.uk/news-and-l ... wales-nato
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steve2267

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Unread post11 Jan 2022, 21:55

As I began reading that last post, I was wondering, "When was PoW declared operational? I don't recall reading that announcement!" Indeed, even the Wikipedia page would seem to think the PoW is still undergoing seat trials. I guess the tin Lizzie's round-the-world escapades overshadowed the PoW operational pronouncment. In any event, congrats to the Brits for finally having two operational carriers again.
Take an F-16, stir in A-7, dollop of F-117, gob of F-22, dash of F/A-18, sprinkle with AV-8B, stir well + bake. Whaddya get? F-35.
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zhangmdev

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Unread post11 Jan 2022, 22:15

HMS Prince of Wales was declared operational last October.
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Unread post11 Jan 2022, 22:40

Yeah & if the "SEAT" fits -wear it- OR SIT ON IT!? Mebbe 'stevo dore' meant SEATO? That's the Woody Woodpecker song.
ASLO urlier: viewtopic.php?f=58&t=15969&p=459768&hilit=Operational#p459768
HMS Prince of Wales into the spotlight
11 Jan 2022 NavyLookOut

"...conducting initial workups around the UK (and a brief visit to Gibraltar), she was declared fully operational on 30th September [2021]. She sails from Portsmouth tomorrow for a 3-week shakedown and work up in preparation for a demanding year, of which about 200 days are expected to be spent [at] sea...."

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