thanks for your concern, but the plane i am designing is froma plane which was built in 1934, the part of the plane you see in my drawings is of the twin tail booms.
(look here for what it is meant to look like http://www.aircrash.org/burnelli/ch_ub14.htm )

i understand why most planes have the tail straight

you are interested in reducing drag, why not consider building a plane which can produce more lift, that is the idea behind what i am making, i am using a lifting body design which you can read all about from the website mentioned above.

i appreciate all your help

dave