Board Thread:Off Topic/@comment-25396609-20171207232020/@comment-25396609-20180121013743

If you DESPERATELY want a sword bow with a sword which is physically incapable of flexing backwards, and are willing to sacrifice a but in the way of actual swordiness, there's the option of using a segmented blade, such as it being split in half, mounted together by a mechanism containing a heavy torsion spring to allow it to flex back and spring forward without bending the actual blade. It'd be inefficient, it'd be ugly, it'd probably be a terrible sword, but you might luck out and be able to fire arrows without breaking it.

Actually and this occurred to me while typing, putting a torsion spring into it as part of the hilt would let the entire blade tilt backwards to act as arms without compromising the integrity of the blade; still be pretty awkward though, and only work well with a sttrongly curved single edged sword such as a cavalry sword.

Even if you did make it work as a sword bow though, double swords are... just awful. Horribly ineffective; worse than a scythe even when it comes to danger to the wielder.