Gunner Asch fired this volley in
:


Punch press of some sort from the looks of it.

Yep, it was. But some of those old 'pancake' engines had short strokes
(high ratios, but short strokes).

I've seen a couple of 36" piston-diameter tug motors with strokes of less
than 10". Flat heads, though, so still good compression ratio.

Lloyd