I vaguely remember a C-130 Hercules and, IIRC also a PV-2 Orion, maybe getting flung off the bow - almost certainly with JATO assist - off (a) Forrestal. (My, what those "turning-and-burning" jockeys wouldn't try for a thrill, in those days! )
Of course, taking off is the easy part, as the Doolittle B-25s proved, as far back as 1942. The hard part is landing back on.
And I can't recall seeing any 1956 pic(s) of so many different a/c aboard (a) Forrestal, Brian.
Can you steer us to any pic(s) of any of the above, buddy?