Helmet-mounted displays

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

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Unread post01 Dec 2017, 01:31

Doancha mean this :poke: Realistically there is not a lot to say but just typing out fluff as in 'the scout' is SCOUSE! 8)
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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monkeypilot

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Unread post17 Dec 2017, 18:03

Any news about next developments?

March 09, 2017
Thales Visionix Inc. v. U.S. (Fed. Cir. 2017)
Federal Circuit Finds Motion Tracking System to be Patent-Eligible

http://www.patentdocs.org/2017/03/thale ... -2017.html
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spazsinbad

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Unread post17 Dec 2017, 22:40

:doh: I attempted to understand the gobbledegook at URL - otherwise I think you can rest assured any news will go here.

Bunch o'stuff some already in this thread: https://www.reddit.com/r/eMaginCorp/com ... _aviation/

I looked for the 'aircraft carrier' fillum clip wot is somewhere (repeated) in this forum but could not find it hastily so here it may be again. As 'SWP' points out it is all CGI and may not be 100% accurate but I'll take anyfing I can get for now: see the bogies bogies bogies in the screenshot? FOUND the fillumclip: viewtopic.php?f=57&t=15767&p=368348&hilit=published#p368348 & Later: viewtopic.php?f=22&t=53585

& rpt pic of HMDS III(Gigliotti) + Zooms: https://thechive.files.wordpress.com/20 ... et-213.jpg

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HMDSIIIcgi.jpg
complex-technology-in-the-f-35s-400k-helmet-213.jpg
complex-technology-in-the-f-35s-400k-helmet-213 ZOOM.jpg
complex-technology-in-the-f-35s-400k-helmet-213 ZOOMzoom.jpg
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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spazsinbad

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Unread post18 Dec 2017, 03:19

Back in the HOOhaa Era - back before THE beginning - geez even in whenever this article was not exceprted much here:

viewtopic.php?f=55&t=5525&p=166744&hilit=Carroll#p166744 [original article offline for awhile]

SO HERE GOES in an attempt to STOP the haaHOO about some kind of eye-tracking tech that some want to ascribe to the HMDS of the F-35 - HOKAY? :mrgreen:
Lightning Sight
01 Aug 2009 Sydney Carroll

"...The helmet-mounted display system, or HMDS, displays head-steerable symbology, meaning the pilot's line of sight dictates the content that appears on the visor. As soon as, or even before, a pilot sees another aircraft in the distance, the system projects a marker on the visor to locate, identify, and track the aircraft. If the designated aircraft is determined to be hostile, the pilot can use the targeting info to cue weapons—without looking down at the cockpit displays and while pulling g's.

"No matter where pilots look, they have all the flight information right in front of their eyes," says Dave Perkins, lead engineer of HMDS integration. "The helmet displays airspeed, altitude, rate of climb, and the aiming information for all the weapons. The helmet even displays all the information needed should something go wrong. For example, it provides an alert and directs the pilot's attention if there's something nasty coming from the nose of the airplane while the pilot is looking somewhere else."

These HMD capabilities apply to F-35 air-to-ground missions as well. Pilots can mark new target locations by simply looking, pointing, and clicking a designator on the sidestick as they fly by. Then the aircraft's datalink system allows pilots to send the marked precise target coordinates quickly and easily to bombers and other combat aircraft in the same mission....

...The Gen II helmet is made of carbon fiber and Kevlar. It was carefully designed to distribute weight without altering the pilot's center of balance. If the majority of the helmet's weight is too far forward, high g's may force the pilot's head in the direction of the turn. To keep head movement under the pilot's control, designers brought the optics to the top of the forehead of the Gen II helmet....

Photo: [shows HMDS I & HMDS II many views - only front Zoomed here] http://www.codeonemagazine.com/images/m ... 7_2643.jpg


Source: http://www.codeonemagazine.com/f35_arti ... item_id=12
Attachments
HMDSone&HMDStwoFrontOnViews.jpg
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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popcorn

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Unread post18 Dec 2017, 03:59

Will we eventually see any custom artwork on the helmet?
"When a fifth-generation fighter meets a fourth-generation fighter—the [latter] dies,”
CSAF Gen. Mark Welsh
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spazsinbad

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Unread post18 Dec 2017, 04:03

I think if you look back through the thread you will see info about USMC/USN helmets being WHITE (for visibility sake at sea) with test boyos having badges on them I think - whatever. OR do you mean something out of the past? FANCY STUFF?

One could gargle WHITE in this thread alone to see a lot of info: viewtopic.php?f=62&t=16223&p=275780&hilit=white#p275780 LEADS to: viewtopic.php?f=62&t=16223&p=208912&hilit=colour#p208912
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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010137

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Unread post18 Dec 2017, 07:19

spazsinbad wrote:I think if you look back through the thread you will see info about USMC/USN helmets being WHITE (for visibility sake at sea) with test boyos having badges on them I think - whatever. OR do you mean something out of the past? FANCY STUFF?

One could gargle WHITE in this thread alone to see a lot of info: viewtopic.php?f=62&t=16223&p=275780&hilit=white#p275780 LEADS to: viewtopic.php?f=62&t=16223&p=208912&hilit=colour#p208912


Our USMC / USN flight equipment personnel put white reflective tape on them to help SAR assets in case you jump out over water. It is almost always one of the top things the SAR swimmers remark on about finding aviators in the water post ejection. We'll also put a bit of squadron art work on the back. It's a big ocean out there, everything helps...
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Unread post12 Jan 2018, 07:02

A similar graphic may be in this thread, anyway another HMDS simulated view from the Air & Space Magazine story before.

viewtopic.php?f=62&t=16223&p=375222&hilit=Space#p375222 31 Aug 2017 page 54 this thread.
“The F-35 helmet-display layout and symbols are similar to those of F-22 and F-16 head-up displays. On this simulated pilot’s view, images of the terrain are overlaid with data, such as the airspeed —625 knots— displayed in a rectangle on the left, and groundspeed just below: “GS 786.” In the center an attitude indicator shows the degree of the F-35’s pitch and roll relative to the horizon. At top center the display indicates a focus between compass heading 279 and 290 degrees. A rectangle on the right reads “14,000” feet of altitude. Diamonds are possible targets; circles, designated ones. (Rockwell Collins)” https://public-media.smithsonianmag.com ... y_live.jpg
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HMDSlayoutMOLAsuperHelmetSep2017zoomPDF.gif
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 post25 Jan 2018, 00:41

FY 17 DOD PROGRAMS [DOT&E] F-35 Joint Strike Fighter (JSF)
Pub Jan 2018 for 2017 DOT&E

"Night Vision Camera (NVC) page numbered 58 (physical page 28)
-- The NVC used with the Gen III helmet has several deficiencies, including inadequate acuity for low‑illumination operations (i.e., during a cloudy night with no stars, moon, or cultural lighting). As a result, F-35B pilots were losing situational awareness during night landings on an aircraft carrier. At the time of this report, incremental software solutions had been demonstrated in the lab and were planned for flight test. Further improvement is dependent on improved imaging technology with a prototype expected in 2019."

Source: http://www.dote.osd.mil/pub/reports/FY2 ... f35jsf.pdf (0.5Mb)
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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ricnunes

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Unread post25 Jan 2018, 10:46

spazsinbad wrote:A similar graphic may be in this thread, anyway another HMDS simulated view from the Air & Space Magazine story before.

viewtopic.php?f=62&t=16223&p=375222&hilit=Space#p375222 31 Aug 2017 page 54 this thread.
“The F-35 helmet-display layout and symbols are similar to those of F-22 and F-16 head-up displays. On this simulated pilot’s view, images of the terrain are overlaid with data, such as the airspeed —625 knots— displayed in a rectangle on the left, and groundspeed just below: “GS 786.” In the center an attitude indicator shows the degree of the F-35’s pitch and roll relative to the horizon. At top center the display indicates a focus between compass heading 279 and 290 degrees. A rectangle on the right reads “14,000” feet of altitude. Diamonds are possible targets; circles, designated ones. (Rockwell Collins)” https://public-media.smithsonianmag.com ... y_live.jpg


Excellent picture there spazsinbad, thanks for sharing! :thumb:

Your picture made me wonder about the following and rather famous online airspeed calculator:
http://www.hochwarth.com/misc/AviationCalculator.html
Which "disclaimer" says "suitable for subsonic speeds".

So and as a curiosity and by using the speed and altitude data in the HMD picture above, I decided to use the calculator above and enter the 625 knots CAS and altitude of 14,000 ft values (just like shown on the HMD picture) and the result in Mach speed was 1.1667... which rounded to two decimal places is Mach 1.17 just like it is shown in the HMD picture.

It seems that the calculator has a good degree of accuracy even for supersonic speeds. What's your opinion on this?
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spazsinbad

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Unread post25 Jan 2018, 11:03

I am not a calculator just call me an ambulance. LAUGH IN
"Tyrone F. Horneigh: Would you like to call me Cutie? [Gladys hits him]

Tyrone F. Horneigh: Would you like to call me Sweetie? [Gladys hits him]

Tyrone F. Horneigh: Would you like to call me an ambulance? [falls off the park bench]
RAN FAA A4G Skyhawk 1970s: https://www.faaaa.asn.au/spazsinbad-a4g/ AND https://www.youtube.com/channel/UCwqC_s6gcCVvG7NOge3qfAQ/
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rheonomic

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Unread post26 Jan 2018, 01:47

ricnunes wrote:It seems that the calculator has a good degree of accuracy even for supersonic speeds. What's your opinion on this?


Hard to say without examining the code. Skimming through it nothing jumps out, but it's also been quite a long time since I've actually looked at the relevant equations and their assumptions.

Edit: actually I think the way that site is calculating things it's neglecting compressibility effects so the answer is probably invalid for M > 1 as the disclaimer says.
"You could do that, but it would be wrong."
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ricnunes

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Unread post26 Jan 2018, 17:34

rheonomic wrote:Edit: actually I think the way that site is calculating things it's neglecting compressibility effects so the answer is probably invalid for M > 1 as the disclaimer says.


I see, but then why are the values seen on the F-35 HMD (flying at Mach 1.17) an almost a perfect match to the values that we can get in the calculator?
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Unread post26 Jan 2018, 19:35

ricnunes wrote:
rheonomic wrote:Edit: actually I think the way that site is calculating things it's neglecting compressibility effects so the answer is probably invalid for M > 1 as the disclaimer says.


I see, but then why are the values seen on the F-35 HMD (flying at Mach 1.17) an almost a perfect match to the values that we can get in the calculator?


Since it's a public release photo the probably either 1) used a low-fidelity sim model or 2) they made a representative mockup of the display and just picked some numbers and did a basic Mach calculation.

In actuality you'd take the subsonic Mach number result and then solve the equation
Image
iteratively using the subsonic equation Mach number as an initial condition.

(sorry for the large image; i can't figure out how to get the bbcode img resizing to work)
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ricnunes

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Unread post27 Jan 2018, 23:54

Interesting rheonomic.

By the way, what does the "q" and "p" variables stand for?
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