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Beechcraft 1900: Why The T-Tail?  
User currently offlineKELPkid From United States of America, joined Nov 2005, 6428 posts, RR: 3
Posted (8 years 3 months 3 weeks 1 day 3 hours ago) and read 7117 times:

Hi everyone,

Just wondering why Beechcraft would have chosen the T-Tail config for the Beech 1900.

I realize it's an outgrowth of the King Air (where there are many T-Tails and conventional tails, depending on the series and production year). Even the 1900's immediate airline successor, the Beech 99, had a conventional configuration tail.

Off of the top of my head, it seems that the possibility of a deep stall situation would argue against the useage of the T-Tail config, however there must be some overriding design reason why the Beechcraft engineers went with the T-Tail.

Thoughts on this, anyone? It seems Beechcraft has loved playing around with the tail configuration ever since they first applied the V-tail to the Bonanza  Wink


Celebrating the birth of KELPkidJR on August 5, 2009 :-)
9 replies: All unread, jump to last
 
User currently offlinePtrjong From Netherlands, joined Mar 2005, 3985 posts, RR: 18
Reply 1, posted (8 years 3 months 3 weeks 1 day 2 hours ago) and read 7092 times:

T-tail? Almost a biplane tail... with vertical surfaces everywhere, too. I don't know the answer, but it looks as if some problems didn't want to go away.

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Photo © Matthew Borg Cardona


Peter Smile



The only difference between me and a madman is that I am not mad (Salvador Dali)
User currently offlineKELPkid From United States of America, joined Nov 2005, 6428 posts, RR: 3
Reply 2, posted (8 years 3 months 3 weeks 1 day 2 hours ago) and read 7086 times:

Quoting Ptrjong (Reply 1):
T-tail? Almost a biplane tail... with vertical surfaces everywhere, too. I don't know the answer, but it looks as if some problems didn't want to go away.

In the late 1980's into the 1990's, if you wanted to make your plane look up to date, winglets and strakes were the way to do it  Wink I've often wondered about the "taillets" (on the horizontal stab) on the BE 1900 too...is this a drag-reducing sort of thing?



Celebrating the birth of KELPkidJR on August 5, 2009 :-)
User currently offlineNZ8800 From New Zealand, joined May 2006, 425 posts, RR: 2
Reply 3, posted (8 years 3 months 3 weeks 1 day 2 hours ago) and read 7075 times:

I think it is more to assist in stabilising a very unstable aeroplane than to reduce drag...


MDZWTA ~ Mobile Disaster Zone When Travelling Abroad
User currently offlineAeroWeanie From United States of America, joined Dec 2004, 1610 posts, RR: 52
Reply 4, posted (8 years 3 months 3 weeks 23 hours ago) and read 7029 times:
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The reason that the 1900 has a T-tail and all the other appendages is that management wanted to use as many Super King Air 200 parts as possible. The tail itself is identical and the appendages (little vertical "tailets" and horizontal "horsals") were to add enough tail area to get the required levels of directional and longitudinal stability on the 1900 and 1900C. On the 1900D, ventral fins were added to compensate for the directional stability reduction due to the taller fuselage.

In addition, the 1900/1900C fuselage is a stretched cargo-door Super King Air 200's. On the 1900D, it was stretched vertically. The wing panels outboard of the nacelles are from a Super King Air 200. The outer wing panels are actually slightly modified Bonanza wings!

1900, 1900C:

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Photo © Thierry Deutsch


1900D:

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Photo © Erick Stamm


Super King Air 200:

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Photo © Sergio Domingos



User currently offlineKELPkid From United States of America, joined Nov 2005, 6428 posts, RR: 3
Reply 5, posted (8 years 3 months 3 weeks 23 hours ago) and read 7026 times:

Quoting AeroWeanie (Reply 4):
The reason that the 1900 has a T-tail and all the other appendages is that management wanted to use as many Super King Air 200 parts as possible. The tail itself is identical and the appendages (little vertical "tailets" and horizontal "horsals") were to add enough tail area to get the required levels of directional and longitudinal stability on the 1900 and 1900C.

Is it just me, or did the photos that you cited reveal that the "tailets" also need de-ice protection?  Wink



Celebrating the birth of KELPkidJR on August 5, 2009 :-)
User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 6, posted (8 years 3 months 3 weeks 22 hours ago) and read 7013 times:

Quoting KELPkid (Reply 5):
Is it just me, or did the photos that you cited reveal that the "tailets" also need de-ice protection?

No, they just have a black anti abbrasion tape applied.



"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offlineHAWK21M From India, joined Jan 2001, 31702 posts, RR: 56
Reply 7, posted (8 years 3 months 3 weeks 14 hours ago) and read 6945 times:

Quoting EMBQA (Reply 6):
No, they just have a black anti abbrasion tape applied.

Why Black not Transparent.Any Reason.
regds
MEL



Think of the brighter side!
User currently offlineEMBQA From United States of America, joined Oct 2003, 9364 posts, RR: 11
Reply 8, posted (8 years 3 months 3 weeks 13 hours ago) and read 6939 times:

Quoting HAWK21M (Reply 7):
Why Black not Transparent

It's still a rubber 'boot', it just dosn't inflate. Sorry thats the best I recall, it's been 12 years since I last touched a BE1900.



"It's not the size of the dog in the fight, but the size of the fight in the dog"
User currently offlinePtrjong From Netherlands, joined Mar 2005, 3985 posts, RR: 18
Reply 9, posted (8 years 3 months 3 weeks 6 hours ago) and read 6886 times:

Quoting AeroWeanie (Reply 4):

Thanks. So, no aerodynamic problems as I suggested; just no proper new tail surfaces to cut cost.

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Photo © Thierry Deutsch


Read Thierry's alternative history of the 1900D... rotfl  thumbsup 



The only difference between me and a madman is that I am not mad (Salvador Dali)
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