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ross_M
26th Mar 2012, 17:46
There's so many incident reports of some moron pointing a green laser at an aircraft on approach. I was wondering whether this same technique could be modified to prevent runway incursions. What if aircraft granted takeoff clearance switched on a laser beam pointing straight down the runway; would this be a feasible warning sign to any potential intruders?

Alternatively maybe a beam triggered by some sort of stationary runway edge device if aircraft modifications are too expensive? How far do such beams run and what about weather and visibility?

Wonder what people think? Stupid idea? Reasons it won't work? Been tried before?

Dont Hang Up
26th Mar 2012, 18:24
There are many ways of detecting runway incursions. I have to say that dazzling the offending aircraft or vehicle with a l@ser is one of the more dramtic suggestions.

The problem has always been with integrating the detection system with existing procedures. Like so many systems the bugbear is too many false or nuisance alerts devaluing the system used.

In terms of an onboard system rather than an ATC based system I agree with OK465. Flight deck airport situation displays based on ADS-B don't just cover runway incursion but can help with taxiway navigation and taxiway conflict all in one system. No need for bells and klaxons - just an ability to see the whole picture regardless of airport conditions.

ross_M
26th Mar 2012, 18:35
The idea came to mind when I was reading abot the TOM 500 Laser Bird Deterrent System (http://www.tom500.eu/)

riverrock83
26th Mar 2012, 18:47
A laser isn't going to work due to too many false positives (birds, litter, small animals) and runways are rarely level (so long beams aren't practical).

Also a laser on a plane would have difficulty knowing the difference between an up slope and another plane. Plus if an obstacle is within visual range, then a pilot can take action anyway.

Your link is to a system that scares birds using fairly low intensity beams of light. It doesn't have an aiming or detection system built in.

Sir George Cayley
26th Mar 2012, 20:30
If you want a cheap system to scare birds look no further; I've been doing it for years:O

wrt RWSL - when they go out is that the takeoff clearance?

SGC

ImbracableCrunk
27th Mar 2012, 03:53
I thought you were talking about something like this:

Press Release – Laser Technology Will Make It Easier For Pilots To See Runway Markings (http://www.faa.gov/news/press_releases/news_story.cfm?newsId=6377)

Press Release – Laser Technology Will Make It Easier For Pilots To See Runway Markings

For Immediate Release

March 19, 2004
Contact: Joette Storm
Phone: (907) 271-5296
ANCHORAGE — The Federal Aviation Administration (FAA) is testing laser technology designed to give pilots a better view of airport runway markings at night and during bad weather thanks to laser technology by "lighting up" painted surface runway markings.
The new laser-enhanced technology developed by Delaware-based B&W Tek, uses laser light to produce a high-quality controlled bright yellow beam to project a high-visibility line across the taxiway to mark the "hold short" line. Pilots must halt their aircraft before crossing that line and may not cross it until they are cleared by air traffic control.
The lasers will be used primarily to illuminate holding position markers where taxiways intersect runways. The technology works by interlacing yellow laser projections over the painted "hold short position" markings to produce a brighter line at night and in reduced visibility. By improving the visibility of these markers, pilots will have a better chance to see where they need to stop. Improving stop markers is one part of the FAA's broader effort to reduce runway safety incidents.
"Laser technology has been around a long time," said Roger Motzko, FAA Alaska Region runway safety manager. "But now we will be able to use this tool to make runways markings easier to see during poor weather conditions and at night to reduce the potential for incidents on the runway."
The bright projection is created by the laser's ability to organize light into a specific monochromatic color that produces very directional, or coherent, light. All lasers used in the FAA testing fit within the Federal Food and Drug Administration's laser guidelines that specify "eye safe" conditions for laser light emissions. The technology is being tested for airport use in Anchorage by Greatland Laser of Anchorage.
The FAA launched the laser research as part of the continuing national effort to decrease runway incursions. A runway incursion is defined as "any occurrence in the airport runway environment involving an aircraft, vehicle, person, or object on the ground that creates a collision hazard or results in a loss of required separation with an aircraft taking off, intending to take off, landing, or intending to land."
Runway incursions have been declining over the past few years, in part because of targeted FAA efforts to improve airport markings. Last year, 324 runway incursions occurred at airports in the United States, compared to 339 in 2002 and 407 in 2001.
The installation of the first laser-enhanced holding position marking is expected in September in Anchorage.

ImbracableCrunk
27th Mar 2012, 03:55
Not quite sure why laser comes up l@ser.

Is that 1337 5p3/\|<?

Hmmmm. Testing testing . . . plaser. lase. slaser. lasser. . . laser. . . .

Well, apparently, there is a new way to spell that word.

sb_sfo
27th Mar 2012, 16:20
http://www.pprune.org/rumours-news/349414-l-sers-attacks-aircraft-32.html#post7026389

ImbracableCrunk
27th Mar 2012, 20:53
Thanks! Smart moderating.

|_453r!