phxplanes
Posts: 381
Joined: Sun Feb 27, 2005 9:24 am

Winglets On Horizontal Stabilizer?

Tue Aug 02, 2005 10:25 am

I was reading the post about winglets and the different types and how effective they are. So why not have winglets at the ends of the horizontal stabilizers?
 
EMBQA
Posts: 7798
Joined: Sat Oct 25, 2003 3:52 am

RE: Winglets On Horizontal Stabilizer?

Tue Aug 02, 2005 10:29 am

So why not have winglets at the ends of the horizontal stabilizers?

Because they are not needed. The vortices that form on the wings are not as big a factor on the horizontal stabilizer and there is no added benefit to adding them.

[Edited 2005-08-02 03:30:40]
"It's not the size of the dog in the fight, but the size of the fight in the dog"
 
Skydrol
Posts: 1053
Joined: Fri Oct 03, 2003 12:01 pm

RE: Winglets On Horizontal Stabilizer?

Tue Aug 02, 2005 3:44 pm

Sure they can have it. On the Beech 1900D as an example:


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OzLAME
Posts: 336
Joined: Thu Feb 17, 2005 8:40 am

RE: Winglets On Horizontal Stabilizer?

Tue Aug 02, 2005 6:42 pm

Quoting Skydrol (Reply 2):
Sure they can have it. On the Beech 1900D as an example:

Those aren't winglets as such. They are there to augment the vertical stabiliser (which is the same as a King Air stab. and is too small for the a/c) and to enhance the aircraft's stability in a one-engine-out situation (they are in line with the engines). A winglet's function is to reduce drag associated with tip vortices.
Here is an earlier discussion of this topic: Winglets On Tail? (by 777DadandJr Mar 31 2005 in Tech Ops)
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