JASDF F-35A crashed

Discuss the F-35 Lightning II
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spazsinbad

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Unread post18 Mar 2021, 22:21

I don't know how accurately the old Microsoft Flight Simulator FSX displayed the Hornet HUD - and I have never flown a real world HUD aircraft NOR seldom used any HUD in the simulator testing it for the 'PADDLES' addon that you can hear. Remember this is a test and I fly the approach badly to get the LSO to comment (inaccurately in these tests but that is the point - to correct the simulated LSO calls). Anyway one can see 'flying only with/in this HUD view' I have trouble BUT MY POINT IS I BECAME Disorientated during these two simulator sessions just sitting at my desk with the light on. :mrgreen: bloody hell. One can bring one's own physical flying experiences to simulators if one is IMMERSED in them and flying with only HUD view I WAS IMMERSED! :shock:

FSX Mission 4&5 Hornet FCLP Demo Coupeville https://www.youtube.com/watch?v=79bbNH4Tp0g

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Gamera

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Unread post24 Mar 2021, 11:37

Wednesday, 24 March 2021:
F-35A x 2.
89-8707. MSN AX-7.
99-8712. MSN AX-12.
JASDF, based at Misawa AB, Aomori Prefecture.

13:32, took off, at Misawa AB.

Above Japan Sea, during training, one F-35A had engine system warning light.

14:20 and 14:22, both emergency landed, at Aomori AP, Aomori Prefecture.

One JAL domestic flight 2806, from Aomori AP, to New Chitose AP, Hokkaidou, ETD 14:35, departure delayed 12 minutes.

https://flyteam.jp/registration/89-8707
https://flyteam.jp/registration/99-8712
https://jp.reuters.com/article/idJP2021032401001559
https://www.news24.jp/nnn/news1084prrtbhq5kgz3bx5.html
https://www3.nhk.or.jp/lnews/aomori/202 ... 11908.html
https://www.okinawatimes.co.jp/articles/-/726684
https://www.sankei.com/affairs/news/210 ... 18-n1.html
https://www.sankei.com/photo/story/expa ... 12-p2.html
Last edited by Gamera on 25 Mar 2021, 10:42, edited 1 time in total.
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doge

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Unread post24 Mar 2021, 22:20

Gamera wrote:Wednesday, 24 March 2021:
Above Japan Sea, during training, one F-35A had engine system warning light.
14:20, both emergency landed, at Aomori AP, Aomori Prefecture.

It is being broadcast live on youtube. :shock: (I watch. 8) )
https://www.youtube.com/watch?v=ifdjtMZnOrM
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Unread post25 Mar 2021, 00:14

doge wrote:It is being broadcast live on youtube. :shock: (I watch. 8) )
]


Ahh, slow TV at its best. :cheers:
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Unread post25 Mar 2021, 01:02

I'm curious. Are we watching the snow melt? Sure beats watching grass grow or paint peal. Ambient noises are excellent.
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Gamera

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Unread post25 Mar 2021, 16:51

>Wednesday, 24 March 2021:
>F-35A x 2.
>89-8707. MSN AX-7.
>99-8712. MSN AX-12.
>JASDF, based at Misawa AB, Aomori Prefecture.

https://www.aba-net.com/sp/news/news-12166.html

Replaced engine control component.

After 16:45, departed Aomori AP.

After 17:00, arrived Misawa AB.
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spazsinbad

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Unread post06 May 2021, 14:02

6 page PDF of the SPATIAL DISORIENTATION article is attached.
WHICH WAY IS UP?
Jun 2021 Wingco

"Wingco investigates the potentially disastrous phenomena of spatial disorientation and G-LOC, and how they can affect fast-jet pilots... So what does Spatial Disorientation mean and how does a fully-serviceable modern fighter like the exceptional F-15C crash as a result?...

...Pilots need to believe what their instruments are telling them, rather than relying entirely on their easily misled senses..."

Source: Combat Aircraft Journal Volume 22 No 6 JUNE 2021

VIDEO about G-LOC: http://www.youtube.com/watch?v=_0nbRYIBVDQ

Attachments
SDaccelerationIllusion.gif
Spatial Disorientation SD Combat Aircraft Jun 2021 pp6.pdf
(1.06 MiB) Downloaded 72 times
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Unread post10 Jun 2021, 04:40

Sadly another SD fatality - this time in an F-16 night flying recently.
Investigation: Pilot’s Disorientation Caused 2020 Fatal F-16 Crash in Michigan
09 Jun 2021 Brian W. Everstine

"A Wisconsin Air National Guard pilot experienced spatial disorientation while flying at night, in bad weather, and without working GPS, causing his F-16 to crash in a wooded area of northern Michigan, according to an Air Force Investigation [ https://www.airforcemag.com/app/uploads ... port-1.pdf (4.2Mb) ] released June 9. Capt. Durwood “Hawk” Jones, 37, was killed instantly in the Dec. 8, 2020, crash in the Hiawatha National Forest. He was assigned to the 176th Fighter Squadron, 115th Fighter Wing out of Truax Field Air National Guard Base....

...[the] F-16 went into a series of heading, altitude, and attitude changes. The F-16’s nose dropped to 90 degrees low, at 135 degrees of right bank, and at a speed of 600 knots “that terminated with controlled flight into terrain,” according to the report. He did not attempt to eject. The aircraft was completely destroyed....

...The Air Force Accident Investigation Board report states the cause of the crash was the pilot’s inability to recover from spatial disorientation. The combination of night, weather conditions, the use of night-vision goggles, low illumination, the aircraft’s speed and position, and the pilot’s breakdown in visual scan of the aircraft’s instrumentation impacted his “ability to recognize, confirm, and recover from the unusual attitude created by the spatially disorienting event,” the report states. Additionally, the pilot’s fixation and the degraded GPS satellite tracking system contributed to the crash...."

Source: https://www.airforcemag.com/investigati ... -16-crash/
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Unread post10 Jun 2021, 16:26

Salute!

Crying damned shame.

As usual, I shall try to diminish the pilot factors. That being said.....

One thing that bugged me was the pilot could not disable the GPS inputs to the basic nav program without a "reset" of some kind. In other words, not even fly pure inertial or even pure attitude.
In the Sluf we had the magic switch that turned off the doppler! The system then went pure inertial. Apparently the GPS resembles our doppler from then.

The primary Sluf nav mode was "doppler inertial gyroscoping", and we could do an airborne alignment flying about and did not even have to be st and level for minutes like this new thing, just a decent initial nav position. The next backup was doppler damped inertial which kept the platform level but nothing else. Then there was pure inertial, which most of us used with great results. And then there were two more backup modes before needle, ball and airspeed, altimiter, stby attitude indicator, whiskey compass and the beat goes on.

Other thing is the Sluf HUD had pitch and roll displayed even if the INS was not working in the nav mode, but just attitude. In my early years in the Viper, we only lost the flight path marker if the INS could not navigate but still showed attitude. In other words, we could sit there for 30 seconds or so and takeoff. Stored heading was about 2 minutes and was very good.

I also have a problem with the NVG aspect of this flight. That had to have made things hard for the pilot.

Sad outcome, and many factors that usually play into the crash.

RIP

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Unread post10 Jun 2021, 19:24

My hindsight...

I’m struck by the additional workload of ‘formation keeping at night on the peepers’ (perhaps in intermittent IMC?) whilst troubleshooting a nav/alignment problem.
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Unread post10 Jun 2021, 22:22

spazsinbad wrote:6 page PDF of the SPATIAL DISORIENTATION article is attached.
WHICH WAY IS UP?
Jun 2021 Wingco


Reminds me of an experience I had the other day when driving through a tunnel going deep under a fjord. On the way down it was clear that I was going downhill, the G's and my eyes told me so. Once I reached the bottom and started traveling uphill, the G's started pushing on my back. Strangely, my eyes still told me that the tunnel was going downhill. :bang: I had some trouble shaking off that sensation, which was a weird experience. Later, when I returned trough the same tunnel my brain and eyes were more in sync, but still it required some effort to actually convince myself that I was going uphill. I guess one could call it 'tunnel vision'. :crazypilot:
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Unread post10 Jun 2021, 23:21

:shock: SD can occur especially when the HORIZON is not visible and subject to motion in 3D space. An Example: A way to combat sea sickness in a vessel in rough weather, if possible, is to go where the HORIZON is visible to concentrate on. 8)
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Unread post31 Jul 2021, 02:28

SD Spatial Disorientation for OLYMPIC QUALIFIED GYMNASTS:
Simone Biles reveals the dangers of her 'twisties' at the Tokyo Olympics, where gymnasts 'literally cannot tell up from down'
31 Jul 2021 Caitlyn Davey

"Simone Biles ... discuss[es] her withdrawal from the Tokyo Olympics, describing what it feels like to experience "the twisties", a sensation where gymnasts lose their sense of their positioning in the air – and has since confirmed she was struggling with a case of the twisties.

A case of the twisties
The twisties is a dangerous phenomenon that gymnasts experience in which they lose their perception of their body while in the air and which can result in serious injury. The Olympic gold medallist shared insight into how the twisties feel...

..."It's honestly petrifying trying to do a skill but not having your mind and body in sync.""

Source: https://www.msn.com/en-au/sport/more-sp ... ar-AAMLle8
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