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Old 06-March-2007, 04:38 PM
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Default Infra-Red Night Landing (FLIR) Video

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...This is a Gulfstream G450 on a visual landing to Aspen, Colorado...The left side of the screen is the Forward Looking Infrared [FLIR]...we can see at night as though it were day... AvWeb
Non-AvWeb subscribers: YouTube video
Now there's some aperture!

Last edited by sarongsong; 06-March-2007 at 05:17 PM.
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Old 06-March-2007, 04:50 PM
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Originally Posted by sarongsong View Post
Now there's some aperture!
I must be having a problem with my aperture... I sees no link.
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Old 06-March-2007, 04:59 PM
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D'oh! Link now inserted.
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Old 06-March-2007, 05:03 PM
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Originally Posted by sarongsong View Post
D'oh! Link now inserted.
Where?
Oops, found it in the OP...
Video requires registration. If it was originally on YouTube, can't we find it there?
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Old 06-March-2007, 05:12 PM
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Yup; with audio:
http://www.youtube.com/watch?v=vcCSz_TgMiE
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Old 06-March-2007, 07:04 PM
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It's interesting how most of the approach lights don't show up on IR. Although a lot of the runway lights do.
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Old 06-March-2007, 07:11 PM
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There's a lot of detail that you would otherwise miss, though. Such as that highway passing right in front of the runway, and the mountains and hills all around.
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Old 06-March-2007, 08:44 PM
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I'd love to have something like that for my car (on a HUD of some sort) so to keep an eye out for wildlife on the highway at night. Maybe add it to the optional package with the moon roof.
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Old 06-March-2007, 09:22 PM
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Hey, my car has a moon roof.

Also, Moose, you don't realise how close that is. The new Lexus LS600h (to be launched in the UK this year, I think) has a pair of IR cameras that it uses for what they call "lane-keeping assist".

Also, the cameras get used by the dynamic vehicle integrated management (or whatever they call it): it uses the lane-keeping assist monitors, traction control, ABS, EBD and variable-ratio power steering to offer oversteer and understeer control. The car also has built-in microwave radar for the active cruise control (to maintain a set gap to the car in front).

Next step will combine all that with sat nav, so you join the motorway, tell it which exit you want, then have a kip until it gets you there!!
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Old 06-March-2007, 09:23 PM
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Oh, yeah, and the headlights include active IR projectors, so the lane-keeping assist monitors will always be able to see more than you can!
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Old 06-March-2007, 09:40 PM
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I just talked to my office mate (a retired F-18 pilot) about FLIR approaches. He said night vision goggles and FLIR make a world of difference* but they aren't allowed for nigh carrier landings. They were considered just one more distraction. Instead, naval aviators have to "fly the ball". Having you head down and locked looking at the FLIR could get you killed in carrier ops but if they could find a way to project it on a heads up display, it could possibly be very useful.

He said the difference between 1991's Operation Desert Storm where they had no night vision equipment and 1998's (?) Operation Desert Fox (he lead the bombing attacks on the first night of that one) where they did was incredible.
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Old 07-March-2007, 12:21 AM
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Quote:
Originally Posted by Dr Nigel View Post
Next step will combine all that with sat nav, so you join the motorway, tell it which exit you want, then have a kip until it gets you there!!
Just so you don't use Google Maps. You'll end up two timezones over from where you want to be. GM renders the postal code for my subdivision almost half the county away from where it should be.

Apparently El Reg discovered that Google Maps UK's suggested route from London to a nearby town was through Sweden. Another one I've seen not long ago (possibly posted here) involved something like 40+ U-turns and 50 odd kms to go to the hotel literally across the street.
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Old 07-March-2007, 09:05 AM
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Quote:
He said night vision goggles and FLIR make a world of difference* but they aren't allowed for nigh carrier landings.
I think they are permitted under certain circumstances now however NVGs create depth perception issues and also increase the incidence of vertigo it seems.

They may also make a pilot more likely to look at the deck purely because he can. Not something you want to be doing when landing on the boat.
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Old 07-March-2007, 09:41 AM
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They may also make a pilot more likely to look at the deck purely because he can. Not something you want to be doing when landing on the boat.
The pilot would have to, using FLIR.

As I understand it, "the ball" is a device that throws colored light at different parts of the glide slope. Green for "good glide path", etc. You can't distinguish color on FLIR or NVG. It's monochrome.
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Old 07-March-2007, 11:30 AM
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Quote:
As I understand it, "the ball" is a device that throws colored light at different parts of the glide slope. Green for "good glide path", etc. You can't distinguish color on FLIR or NVG. It's monochrome.
Its a system of fresnel lenses that change colour depending upon where you are viewing them from. Its not just color though. The apparent position of the ball can alter a bit depending upon the landing aircrafts position on the approach.

I hadnt considered the monochrome nature of the NVGs i just thought that without the NVGs a pilot will be looking at the ball and has no chance to indulge in looking at the deck. I thought that with NVGs looking at the deck would be possible and perhaps even more misleading and undesirable than during the daytime
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Old 07-March-2007, 06:36 PM
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Is the ball of which you speak anything like a VASI (visual approach slope indicator)?
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Old 07-March-2007, 06:43 PM
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Quote:
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Is the ball of which you speak anything like a VASI (visual approach slope indicator)?
Yep. Same idea.
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Old 08-March-2007, 09:54 PM
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Thanks.
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Old 08-March-2007, 10:22 PM
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A pretty good description of the system can be found here. There are two main components. IFOLS (Improved Fresnel Lens Optical Landing System) provides vertical guidance while LRLS (Long Range Lineup System) gives lateral guidance. Together, they're like an optical ILS.
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