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Tail End Topic  
User currently offlineAWspicious From , joined Dec 1969, posts, RR:
Posted (11 years 11 months 3 weeks 5 days 21 hours ago) and read 843 times:

While reading another thread I noticed two different tail ends on the same aircraft.

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Photo © Jonathan Derden
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Photo © Chris Sheldon


Since this is something I've never considered before, can anyone explain what could have been some of the reasons for the switch?

aw

11 replies: All unread, jump to last
 
User currently offlineSushka From United States of America, joined Nov 1999, 4784 posts, RR: 15
Reply 1, posted (11 years 11 months 3 weeks 5 days 21 hours ago) and read 817 times:

just a guess, but maybe it has something to do with a new APU??


Pershoyu Spravoyu Litaki!
User currently offlineSushka From United States of America, joined Nov 1999, 4784 posts, RR: 15
Reply 2, posted (11 years 11 months 3 weeks 5 days 21 hours ago) and read 814 times:

Actualy after I enlarged the pix I see that there are no APUs  Confused


Pershoyu Spravoyu Litaki!
User currently offlineBa777-236 From Canada, joined Oct 2001, 673 posts, RR: 5
Reply 3, posted (11 years 11 months 3 weeks 5 days 21 hours ago) and read 798 times:

Maybe MD (Boeing) changed it for aerodynamics reasons ie. more fuel efficent....


I like British Airways! I'm not sure why, but I do! ;-)
User currently offlineZRH From Switzerland, joined Nov 1999, 5565 posts, RR: 37
Reply 4, posted (11 years 11 months 3 weeks 5 days 21 hours ago) and read 789 times:

The flat "beaver tail" is newer. It is aerodynamicly better. MDC put it first on the MD 87 and later on the newer versions of the MD 81-83. You can see the same difference between the DC 10 and MD 11. BTW the APU outlet of the MD 80s is not there, but higher up.

User currently offlineAWspicious From , joined Dec 1969, posts, RR:
Reply 5, posted (11 years 11 months 3 weeks 5 days 20 hours ago) and read 781 times:

Isn't that the APU outlet just ahead of, and slightly lower than the letter 'N', on the left side? There seems to be soot discolouration from hot exhaust there.

User currently offlineAWspicious From , joined Dec 1969, posts, RR:
Reply 6, posted (11 years 11 months 3 weeks 5 days 20 hours ago) and read 780 times:

ZRH;
What you say dosen't add up because, the flat "beaver" tail is in an older pic than the round cone shaped tail. So, it would seem the cone tail has replaced the flat tail. Follow the links for other pics of the same aircraft. Use the reg# as your search topic.


User currently offlineBWIrwy4 From United States of America, joined Nov 2001, 940 posts, RR: 1
Reply 7, posted (11 years 11 months 3 weeks 5 days 20 hours ago) and read 769 times:

AWspicious:
The beaver tail is newer than the cone. Try looking at pictures of the 717 versus the DC9 and you'll see. On N289AA, maybe the beaver tail was damaged somehow, and it was replaced with a cone that was already in inventory.


User currently offlineAWspicious From , joined Dec 1969, posts, RR:
Reply 8, posted (11 years 11 months 3 weeks 5 days 20 hours ago) and read 763 times:

Ahhhhhhh.....
Okay. Thanks to all who replied.

aw


User currently offlineZRH From Switzerland, joined Nov 1999, 5565 posts, RR: 37
Reply 9, posted (11 years 11 months 3 weeks 5 days 20 hours ago) and read 756 times:

The cone shaped tail is definitly older, these are the older aircrafts. I know it because Swissair had first aircrafts with cone shaped tails and later newer with beaver tails. The first beaver tail was on the first MD 87. About the APU you are right I told it wrong.

User currently offlineAtlamt From United States of America, joined Sep 2001, 240 posts, RR: 3
Reply 10, posted (11 years 11 months 3 weeks 5 days 16 hours ago) and read 724 times:

The outlet you see below and forward of the N number is acutall an exhaust for the heat exchangers/packs. The apu exhaust is on the right side of the fuselage just forward of the right side pack exhaust.


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Photo © AirNikon


If you look on the right side just below the pack exhaust you can see the apu exhaust sticking out from the fuselage. Also note the amount of soot on the engine from the apu exhaust.



Fwd to MCO and Placard
User currently offlineRedngold From United States of America, joined Mar 2000, 6907 posts, RR: 46
Reply 11, posted (11 years 11 months 3 weeks 5 days 12 hours ago) and read 706 times:

and make sure you're comparing MD-80s to MD-80s and not to Fokker 100s.

redngold



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