Helmet-mounted displays

Cockpit, radar, helmet-mounted display, and other avionics
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spazsinbad

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Unread post15 Mar 2016, 06:42

'Dragon029' said: "It was stated in some article last year that the pilots are expected to keep the spare visor in one of their flight suit thigh pockets."

Does that sound correct to you? Not to me it does not. However I was thinking about NVGs. These would not be worn when not required so there must be a time to have them placed on helmet or stowed somewhere. Yes I have seen them clipped on and flipped up and down. Is that how NVGs are worn on the helmet all the time in flight?
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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Dragon029

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Unread post15 Mar 2016, 07:34

Woops, I was just talking about the HMDS Gen III Light's outer visors; NVGs are definitely another matter. That said, I'm not sure I've ever seen a pilot remove their NVGs in flight; flipping them up is easy enough, but I'm not sure if there's anywhere around the cockpit that you could store NVGs and still have easy(-ish) access to them.
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spazsinbad

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Unread post15 Mar 2016, 08:13

Yes I understand you were talking about the implausibility of stowing an HMDS III Visor on the pilot. Then... I was thinking about NVGs of which I have no experience whatsoever....
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Unread post15 Mar 2016, 17:25

http://www.defensenews.com/story/defense/air-space/2016/03/14/light-f-35-helmet-tests-begin-dod-aims-fix-escape-system-year/81646430/


Light F-35 Helmet Tests Begin, DOD Aims To Fix Escape System This Year
Lara Seligman, Defense News
March 14, 2016


WASHINGTON — The F-35 joint program office will begin testing the first prototype of the new, lightweight Generation III helmet later this month, with the hope of resolving by November issues with the jet’s escape system that have kept some pilots grounded.

The JPO and industry will begin testing Rockwell Collins’ latest version of the F-35 helmet, built to be about 6 ounces lighter than the original Gen III helmet, in late March, said Maj. Gen. Jeffrey Harrigian, director of the F-35 integration office. This will be the first time the JPO has tested the full-up Gen III “Light," although the program office has tested a modified helmet that is about the same weight as the light version, he said.

The new light helmet is one of three solutions the Pentagon and industry hope will allow the military services to lift restrictions on lightweight pilots flying the F-35. Last year, Defense News first reported that pilots under 136 pounds were barred from flying the fifth-generation aircraft after testers discovered an increased risk of neck damage to lightweight pilots ejecting from the plane. The Air Force has also acknowledged an “elevated level of risk” for pilots between 136 and 165 pounds.

All three fixes — the lightweight helmet and two modifications to the F-35 ejection seat — will be finalized and ready for incorporation into the production line by November, said JPO Chief Lt. Gen. Christopher Bogdan during a March 10 event in Washington. This reflects an acceleration of the schedule since January, when the JPO estimated the services would be able to implement the three parts of the complete solution in October 2017.
......
Fixing the escape system is not part of the Air Force's criteria to declare its F-35A variants operational this summer, but "it remains a fundamental concern that the Chief and the Secretary have because this is all about the safety of our airmen and that is the bottom line," Harrigian said.

...a lot of re-hash in the linked article... :)
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spazsinbad

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Unread post15 Mar 2016, 19:00

Your rehash of the rehash was posted over the previous page earlier (and also on the ejection seat thread rehash) earlier:

viewtopic.php?f=62&t=16223&p=318051&hilit=Light#p318051

First posted by 'zerion' here: viewtopic.php?f=60&t=27447&p=318046&hilit=Light#p318046
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Unread post16 Mar 2016, 17:01

Lockheed Martin Focused on F-35A Initial Operating Capability
15 Mar 2016 Bill Carey

"...The program has also developed a “light” version of the Rockwell Collins ESA Vision Systems third-generation helmet-mounted display system to reduce pressure on the pilot’s neck. The changes reduce the weight of the Gen 3 helmet from 5.1 pounds to 4.6 pounds.

“We took the shell and we took opportunities to strategically reduce material thickness within the shell, underneath the actual helmet electronics,” Babione explained. Fasteners used to hold the helmet assembly together have been replaced with lighter-weight material, and one of two visors—one for daylight conditions, one for darkness—is removed. The pilot will now change out the visor based on the lighting conditions.

“We have a really good path on how to correct this issue,” Babione said. “When you incorporate all of these changes, there will be no restrictions on pilot weight and no increased risk for any pilot weight in an F-35 ejection seat.”..."

Source: http://www.ainonline.com/aviation-news/ ... capability
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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lamoey

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Unread post16 Mar 2016, 22:43

spazsinbad wrote:
Lockheed Martin Focused on F-35A Initial Operating Capability
15 Mar 2016 Bill Carey

"...The program has also developed a “light” version of the Rockwell Collins ESA Vision Systems third-generation helmet-mounted display system to reduce pressure on the pilot’s neck. The changes reduce the weight of the Gen 3 helmet from 5.1 pounds to 4.6 pounds.

“We took the shell and we took opportunities to strategically reduce material thickness within the shell, underneath the actual helmet electronics,” Babione explained. Fasteners used to hold the helmet assembly together have been replaced with lighter-weight material, and one of two visors—one for daylight conditions, one for darkness—is removed. The pilot will now change out the visor based on the lighting conditions.

“We have a really good path on how to correct this issue,” Babione said. “When you incorporate all of these changes, there will be no restrictions on pilot weight and no increased risk for any pilot weight in an F-35 ejection seat.”..."

Source: http://www.ainonline.com/aviation-news/ ... capability


Sounds impractical to have two different visors. Perhaps keep the Gen III Pro for the 160lbs+ pilots and give the Gen III Lite to the featherweights.
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Unread post16 Mar 2016, 22:48

The HMDS has two visors day/night on the same helmet now. Having all same same HMDS lite is good for standardisation/ manufacturing/ upkeep. I'm curious how the visor will be changed in flight and where it will be stowed. Just curious is all.
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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Unread post16 Mar 2016, 22:56

lamoey wrote:Sounds impractical to have two different visors.


That's how it's done on legacy helmets. You have a separate spare that you swap over to at sunrise/set.
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Unread post16 Mar 2016, 23:23

Interesting. In my days we had helmets with two visors - clear and sunscreengreen or whatever. Usually I had both down especially at low level - IF they were both clean and in good condition scratchwise. So where is the unused visor stowed in legacy aircraft?
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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Unread post16 Mar 2016, 23:54

spazsinbad wrote:So where is the unused visor stowed in legacy aircraft?


Legacy Hornet has a storage space near the pilot's right elbow, don't know about other aircraft.
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Unread post17 Mar 2016, 00:02

OK thanks. I'll guess the F-35 cockpit will have a similar storage space made for the unused visor.
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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Unread post17 Mar 2016, 07:42

F-35 Helmet: Tests To Begin On Lighter Version

The F-35 joint program office will begin testing the first prototype of the new, lightweight Generation III helmet later this month, with the hope of resolving by November issues with the jet’s escape system that have kept some pilots grounded.

The JPO and industry will begin testing Rockwell Collins’ latest version of the F-35 helmet, built to be about 6 ounces lighter than the original Gen III helmet, in late March, said Maj. Gen. Jeffrey Harrigian, director of the F-35 integration office. This will be the first time the JPO has tested the full-up Gen III

https://fightersweep.com/4664/tests-on- ... 35-helmet/

More at the jump
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Unread post17 Mar 2016, 08:24

'FighterSweptAway' has started to replicate other news website stories. This is one of them. The article is regurgitating things already gurged many times over now on this thread and elsewhere from DefNews and the biggest Lara of them all Seligman. Here is the original: http://www.defensenews.com/story/defens ... /81646430/

And here it is here & repeated a few times (search on 'prototype'): viewtopic.php?f=62&t=16223&p=318051&hilit=prototype#p318051
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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Unread post17 Mar 2016, 15:08

AvWeak catchup article - nothing new. First bit about 'ejection seat fixes' posted here earlier: viewtopic.php?f=60&t=27447&p=318326&hilit=Warwick#p318326
F-35 Ejection Seat Fix May Be Ready By Year’s End
16 Mar 2016 Graham Warwick

"...The second fix is to reduce the weight of the Gen 3 helmet-mounted display, developed by Rockwell Collins ESA Vision Systems.....

T...he new “Gen 3 Light” helmet provides identical capability, Babione says, but weighs 4.6 lb., down from 5.1 lb., reducing neck loads during ejection. “We have removed material throughout the shell, under the helmet electronics and changed the fastener materials.”

The visor design has also been changed to reduce weight. Where the original helmet has both day and night visors that pull down, the Gen 3 Light has separate visors that the pilot has to change, and which are stowed in the cockpit when not in use. [one of two is stowed - otherwise the 'other one' has to be used - capice?]

Ejection testing is underway, and the three fixes should be ready by the end of this year or early 2017, he says. The US16E ejection seat in the F-35 is designed to accommodate pilots weighing from 103 lb. to 245 lb."

Source: http://aviationweek.com/defense/f-35-ej ... year-s-end
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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