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See If U Noe This One...about A300  
User currently offlineJaemz From , joined Dec 1969, posts, RR:
Posted (15 years 2 months ago) and read 791 times:

hi guys, Trent brought to attention about the "spinal hump" thing on the roof of the A300Bs...
its somewhere on top the back row of windows... somewhere near the tail fin. u can see it if u take a closer look. it's not seen on a 300-600.
does anyone have a clue what's it for?


6 replies: All unread, jump to last
 
User currently offlineDL 604 From , joined Dec 1969, posts, RR:
Reply 1, posted (15 years 1 month 4 weeks 1 day 21 hours ago) and read 722 times:

I don't know. Could you be more specific about the location? If it's directly overhead it may be where the til fin joins the aircraft fuselage. Just above the windows, I don't know.
I've never been in an A300. Sorry.  

DL 604


User currently offlineKaitak From Ireland, joined Aug 1999, 12519 posts, RR: 35
Reply 2, posted (15 years 1 month 4 weeks 1 day 20 hours ago) and read 710 times:

I'm just looking at a few A300-600 photos now and I see a very small bump a little aft of the No3 door. Is that what you want to know about? If so, I suspect it's something to do with communications/radios.

User currently offlineCapt.Fantastic From United States of America, joined Aug 1999, 747 posts, RR: 0
Reply 3, posted (15 years 1 month 4 weeks 1 day 19 hours ago) and read 704 times:

I am almost certain that these are UHF aerials, used for the aircraft's communication. There are two of these; one on each side of the aft, top portion of the fusalage.

Jim


User currently offlineTrent From United States of America, joined Dec 2005, 0 posts, RR: 0
Reply 4, posted (15 years 1 month 4 weeks 1 day 19 hours ago) and read 711 times:

The spinal hump I was referring to Jaemz earlier is shaped like an elongated protrusion. I know what the average UHF aerial "bumps" look like, and this feature on the A300B4 does not look like one of those. To me, it looks like some kind of structure reinforcement for the top of the rear fuselage. To make it easier to translate what I mean, it looks like a long metal rod, about several meters long which is embedded in the rear third of the A300B4. This is funny to me because I thought everyone knew about this feature. This used to be how I would differentiate early A300s to the A310-200 (without the winglets). Just take a close look at some photographs, it really shouldn't be that hard to spot, it's like a long rod-like element on the top of the aircraft starting from the midpoint to the bottom of the tail. Good luck!

User currently offlineBoomer From United States of America, joined May 1999, 102 posts, RR: 0
Reply 5, posted (15 years 1 month 4 weeks 1 day 18 hours ago) and read 705 times:

Anyone correct me if I am wrong, but I belive these are SATCOM antennas. Different styles for different manufacturers. Locations vary along the crown of the fuselage dependent of the aircraft and already existing equipment.

User currently offlineCedarjet From United Kingdom, joined May 1999, 8142 posts, RR: 54
Reply 6, posted (15 years 1 month 4 weeks 1 day 17 hours ago) and read 700 times:

I'm sure it is either SATCOM or HF or UHF antennae, like at the top of the leading edge of the 707's tail. Is it not on the -600R, then?


fly Saha Air 707s daily from Tehran's downtown Mehrabad to Mashhad, Kish Island and Ahwaz
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