Heads-Up Display announced by GRT Avionics

[mv031161]

Found the Video! thanks to GRT we are getting closer to this reality! https://vimeo.com/101826751

[bkthomps]

Originally Posted by mv031161

Found the Video! thanks to GRT we are getting closer to this reality! https://vimeo.com/101826751

they stirred up a lot of emotions at air venture last year, where are they now?

[David Paule]

To me, this device, as shown in the Aeroglasses video, appears to increase the likelihood of a mid-air collision. The impression I have is that this will inhibit pilots from looking out the window to spot traffic that doesn't show up on the ADS-B system.

I hope that the GRT system somehow manages to avoid that trap.

Dave

[deej]

Will these work over a pair of regular prescription glasses? Has anyone tried?

Thanks,

-Dj

[bkthomps]

Originally Posted by deej

Will these work over a pair of regular prescription glasses? Has anyone tried?

Thanks,

-Dj

mentioned in the first post- so the answer is NO, but you can buy prescription lenses that fit the Epsom glasses it seems

Glasses can be fitted with prescription lenses, and include sunglass filters for daytime flying.

edit: I see your comment below DJ, having played with these types of glasses before, i would doubt you could double them up with something underneath them- nor would you really want to, that's a lot going on

[deej]

Originally Posted by bkthomps

mentioned in the first post- so the answer is NO

Hi Brian,
To be fair, it doesn't say anything in the first post if anyone has tried to wear these over regular prescription glasses, which is what I was asking.

From the pictures it doesn't look likely, but I was curious if anyone has tried.

-Dj

[Chkaharyer99]

Originally Posted by mv031161

Found the Video! thanks to GRT we are getting closer to this reality! https://vimeo.com/101826751

The video is very impressive. The idea of being able to turn your head and see restricted airspace and how it's geographically laid out along with complex airspace, aoa, AS, ALT, traffic,....all while looking outside.

Is the transparency of the projected image adjustable?

[BobTurner]

Originally Posted by David Paule

To me, this device, as shown in the Aeroglasses video, appears to increase the likelihood of a mid-air collision. The impression I have is that this will inhibit pilots from looking out the window to spot traffic that doesn't show up on the ADS-B system.

I hope that the GRT system somehow manages to avoid that trap.

Dave

Of course I haven't yet tried on the glasses. Do they inhibit views to the side more than ordinary glasses (which I wear)?
Keep in mind that the GRT offering does NOT duplicate what was shown in that video. Because there is no reference to head orientation, the GRT system does not project any images of stuff referenced to the ground - like the restricted airspace shown in the video, or a runway.
I suspect that the initial "gee-wiz" factor may in fact cause pilots to forget to look around; but that hopefully will quickly pass. I noted parts of the video showed the pilot looking to one side, then the other.

[Ironflight]

Originally Posted by deej

Will these work over a pair of regular prescription glasses? Has anyone tried?

Thanks,

-Dj

The answer is YES - I wore them over my regular glasses standing in front of the GRT booth, and was pleasantly surprised ast how well they worked. I hope to give these a try in a ckcpit sometime in teh near future, and will let folks know what I find, and how they work for me.

Paul

[Greg_Toman]

The BT-200 glasses are designed to allow you to wear prescription glasses and the BT-200. At the show many people have done this, and I don't think there has been any glasses that were too wide for the BT200 to fit around.

When you wear both your own prescription glasses and the BT200, it tends to push the BT200 further out, and thus down lower on your nose. Nose pads might be necessary to bring the BT200 up higher so they are in the correct position.

As for the aerovision concept. My impression was that this was a little too idealistic for several technical reasons I won't get into. I choose a more traditional HUD view for many reasons, one of which is that it has been tested and proven (although not in a wearable HUD). I have not been disappointed with my choices, and those that have flown with it didn't make any comments critical of the basic design. Their comments (so far) have been about wanting more content to help them more. All agree it is a trade-off between clutter and content.

My opinion is that regardless of whether you have a "look-around" capability, you must first have a HUD view that you can count on. It can't be something subject to the performance of any head-tracking, etc. It must be reliable and usable.

I had two conversations with professional pilots with lots of traditional HUD experience today. They were worried about a dis-orienting effect from the HUD image not being fixed as it is in a fighter plane or 737. I tended to disagree with them, as I have experience flying with a wearable hud, including approach and landing. On the other hand, they have extensive experience in actual IFR with a HUD that I don't have. I understand their concern. I will try some simulated IFR with the wearable HUD, but this could be a difficult question to answer until we have lots of experience, and it might be something that varies from person to person.

I can say, without any uncertainty, that I can fly a more precise approach when using the glasses and following the synthetic approach that is driving the glasses from the EFIS. (I am currently doing this with a Mini-AP in my RV-6A.)

I expect that over the next few years, as this technology advances, that you will start seeing pilots fall into two groups...those who use glasses, and those that don't. I expect for those that do, the panel will serve as a user-interface to the airplane, will provide detailed data, but the glasses will be the primary flight display, and the panel will be a backup primary filght display. This is already happening with the 737 on the captains side.

Greg Toman