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Strobe Lighting Question  
User currently offlineLazyshaun From United Kingdom, joined May 2005, 545 posts, RR: 0
Posted (8 years 3 months 2 days 4 hours ago) and read 2848 times:

Basically, I'd like to know if Boeing and Airbus have a different strobe light pattern?
e.g.I have noticed many Boeing a/c have a patern like this 1...2...1...2...1...2 etc, whereas Airbus go 1.2...1.2...1.2...1.2... etc
Its like Boeing a/c have one flash a second and Airbus have two.
Is this true, or is it my imagination? I have never seen a Boeing a/c do two flashes in a second, although I have seen A have one a second, but not very often.
I know this is a weird way of explaining, but its been playing on my mind for a while. Is it maybe something to do with the country?

Thanks


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8 replies: All unread, jump to last
 
User currently offlineWedgetail737 From United States of America, joined Aug 2003, 5830 posts, RR: 5
Reply 1, posted (8 years 3 months 2 days 4 hours ago) and read 2835 times:
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I don't think Boeing has had an airplane with a 1.2...1.2 pattern since the 727-200's (i.e. Western and some UA). Otherwise, the rest of the Boeing airplanes have the other pattern.

User currently offlineN766UA From United States of America, joined Jul 1999, 8093 posts, RR: 24
Reply 2, posted (8 years 3 months 2 days 1 hour ago) and read 2803 times:

I just saw an airplane yesterday with strobes on the leading and trailing edge of the wing and they'd flash once each alternately.... I'm thinking it was a 737?

I think any differences have to do with a particular manufacturers feeling of what is most visable. I know airbus flash 2 or 3 times successively and I've seen some only flash once at a time and others as many as 4 or 5.



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User currently offlineNightflyer57 From , joined Dec 1969, posts, RR:
Reply 3, posted (8 years 3 months 1 day 23 hours ago) and read 2773 times:

Airbus aircraft strobes flash 1.2...1.2...1.2... with the red beacon flashing in between 2...1. that is a least how it is for the A320 family, and im pretty sure for the A330, A340, and A380.

Now, Boeing aircraft, they don't really have any flash order. The older 737s (100/200/300/400/500) just flash randomly, while on the 737NG the wing strobes flash at the same time, but Boeing aircraft don't have any flash order or any synchronized with any of the other strobes or beacons.

nightflyer...


User currently offlineTroubleshooter From Germany, joined Feb 2005, 423 posts, RR: 5
Reply 4, posted (8 years 3 months 1 day 21 hours ago) and read 2761 times:

Quoting Nightflyer57 (Reply 3):
Airbus aircraft strobes flash 1.2...1.2...1.2... with the red beacon flashing in between 2...1. that is a least how it is for the A320 family, and im pretty sure for the A330, A340, and A380.



Quoting Nightflyer57 (Reply 3):
but Boeing aircraft don't have any flash order or any synchronized with any of the other strobes or beacons.

Are you going to say that Airbus has a synchronization between the strobe and beacon lights?

BTW, I check all these lights every night and I´ve never thought one second about the "flash pattern"...



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User currently offlineNightflyer57 From , joined Dec 1969, posts, RR:
Reply 5, posted (8 years 3 months 1 day 14 hours ago) and read 2710 times:

Quoting Troubleshooter (Reply 4):
Quoting Nightflyer57 (Reply 3):
Airbus aircraft strobes flash 1.2...1.2...1.2... with the red beacon flashing in between 2...1. that is a least how it is for the A320 family, and im pretty sure for the A330, A340, and A380.



Quoting Nightflyer57 (Reply 3):
but Boeing aircraft don't have any flash order or any synchronized with any of the other strobes or beacons.

Are you going to say that Airbus has a synchronization between the strobe and beacon lights?

Airbus does have a synchronization between the strobe and the beacon lights. heres an example if what it looks like
1=1st wing strobe
2=2nd wing strobe
3=beacon

1.2..3..1.2..3..1.2..3..1.2..3 so on and so forth

nightflyer...


User currently offlineJetfixer From United States of America, joined Oct 2000, 94 posts, RR: 0
Reply 6, posted (8 years 3 months 1 day 14 hours ago) and read 2709 times:

The A320 series has 2 lamps in each wing tip that flash alternately. A single strobe does not flash twice to produce this effect.

User currently offlineAJ From Australia, joined Nov 1999, 2381 posts, RR: 24
Reply 7, posted (8 years 3 months 1 day 12 hours ago) and read 2698 times:

Airbus uses a direction identification logic in their strobe lights. Forward facing strobes (left and right wingtip) double flash, whereas the rearward facing strobe is a single flashing unit. As a result you can identify whether the aircraft is coming towards you or away from you by the strobe flashes (double = towards you, single = away from you).

This system is more expensive a strobe units are not interchangable, although some operators have!


User currently offlineHAWK21M From India, joined Jan 2001, 31573 posts, RR: 57
Reply 8, posted (8 years 3 months 1 day 9 hours ago) and read 2674 times:

At night the Double flash on the Strobes help distinguish Airbus from Boeing on Approach at night apart from the Landing lights distribution while We await our Aircraft.
regds
MEL



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