propilot83
Posts: 618
Joined: Sat Jan 27, 2001 2:41 am

Boeing 787 Strobe/Beacon Lights

Wed Dec 16, 2009 6:32 am

WOW did you see the strobe and wing tip navigation lights of the 787 taking off. Its so cool and unique compared to other strobe/navigation lights that blink instantly or have a rotating beacon light. On the 787 it kind of fades on and off, and its almost like something out of a Flight Simulator game. It goes on and off from light to bright and back to light and then vice versa. Never seen it on any other airliner, except in Flight Simulator. Pretty interesting, very well indeed.
 
flybaurlax
Posts: 588
Joined: Sun Oct 05, 2008 12:34 am

RE: Boeing 787 Strobe/Beacon Lights

Wed Dec 16, 2009 6:49 am

Yeah that was really cool. I like the nav lights too. I liked the rear strobes, and was interested to see that there were 2 in the rear.
Boilerup! Go Purdue!
 
N243NW
Posts: 1597
Joined: Thu Jul 24, 2003 4:29 am

RE: Boeing 787 Strobe/Beacon Lights

Wed Dec 16, 2009 7:06 am



Quoting FlybaurLAX (Reply 1):
I liked the rear strobes, and was interested to see that there were 2 in the rear.

My guess is that the two strobes have to do with dispatch reliability. It's much easier to have one bulb burn out and still dispatch the plane with the other one working instead of wasting time at an outstation by climbing all the way up there to replace a single bulb and thus delaying or canceling the flight.

I could be wrong, though...I don't know how much of the 787's lighting is LED-based and therefore longer-lasting.
B-52s don't take off. They scare the ground away.
 
T prop
Posts: 909
Joined: Tue Apr 03, 2001 4:33 pm

RE: Boeing 787 Strobe/Beacon Lights

Wed Dec 16, 2009 7:07 am

787 uses LED and HID for exterior lighting, much better than ancient incan stuff.

http://www.boeing.com/commercial/aer...es/qtr_4_06/AERO_Q406_article4.pdf
 
FX772LRF
Posts: 562
Joined: Thu Apr 02, 2009 4:07 am

RE: Boeing 787 Strobe/Beacon Lights

Wed Dec 16, 2009 12:42 pm



Quoting FlybaurLAX (Reply 1):
Yeah that was really cool. I like the nav lights too. I liked the rear strobes, and was interested to see that there were 2 in the rear.

It looks like that's due to the fact that the APU exhaust cone blocks any mounting opportunity for a single strobe and so they probably had to install one on each side so that the strobe could be seen by aircraft coming from both directions.

Judging from this picture:


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Photo © Jeremy Lindgren / New England Airports



Also, it doesn't hurt that having two strobes can increase the dispatch reliability.

-Noah  wave 
Cleared to IAH via CLL 076 radial/BAZBL/RIICE3, up to 3k, 7k in 10, departure on 134.3, squawk 4676, Colgan 9581.
 
flybaurlax
Posts: 588
Joined: Sun Oct 05, 2008 12:34 am

RE: Boeing 787 Strobe/Beacon Lights

Wed Dec 16, 2009 6:14 pm



Quoting FX772LRF (Reply 4):

It looks like that's due to the fact that the APU exhaust cone blocks any mounting opportunity for a single strobe and so they probably had to install one on each side so that the strobe could be seen by aircraft coming from both directions.

That's exactly what I was thinking. After it was downrange a few miles it just looked like a flat end there with the strobes, kinda neat.
Boilerup! Go Purdue!
 
Fly2HMO
Posts: 7207
Joined: Sat Jan 24, 2004 12:14 pm

RE: Boeing 787 Strobe/Beacon Lights

Wed Dec 16, 2009 6:27 pm

Already being discussed
787 Lighting..whats The Deal? (by Crownvic Dec 15 2009 in Civil Aviation)

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