Just yesterday a friend asked me if there were stability issues during the
design of the Tu-20. This was on account of its extremely long and slender
fuselage which obviously presents a huge mmt arm. I though maybe cruise/drag
considerations or structure limitations may have been the rationale behind
it. The engines are quite close inboard, so I guess the large arm is not
based on yaw requirements for an engine-out/wind case.

I've not been able to find anything on this, does anyone know what the deal
is?