Swept back or curved trailing edges can help the span wise flow and / or reduce
drag. They have to be designed for a specific
air speed to match the span and the airfoil. How do you do that????
If the trailing edge of the rudder meets the trailing edge of stab, it will act
as an air dam at the juncture. This could
help the efficiency of the rudder by preventing some spill off of the air flow.
Good design questions that need an engineering background to be designed properly.
George
Scabby Putter or Sarah Felstiner wrote:
> Let's say you're out to build the perfect T tail (T tail = horiz. stab
> mounted atop rudder/fin )
>
> Is there any argument for straight vs. curved trailing edges?
>
> Is there any reason to make sure that the t.e. of the vertical fin is flush
> with the t.e. of the horizontal foil? Or, alternately, any reason to make
> the t.e.'s offset from one another?
>
> Any other enlightening comments and penetrating insight about T tails as
> defined here is of course also welcome.
>
> Thanks for the wisdom of the list!
>
> Lift,
> Scobie in Seattle
>
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