what about the MD-11?
just add a split fin
or a patent jump on NASA...
"SUMMARY OF THE INVENTION
The purpose of the present invention is to overcome the disadvantages of former tri-jet aircraft such as the Lockheed L1011, and the McDonnell Douglas DC-10, or MD-11.
In particular, said opening formed in the lower part of the fuselage is obturated by a hatch, articulated on the structure of said fuselage and defining, when it is lowered, an access stairway to the inside of the fuselage. The opening of the hatch or its withdrawal from the fuselage if it is detachable then allows the lowering (or raising) of the tail engine via said shaft."
well, there you have it...
