Ask any LF photographer, and you'll be told that absence of a focussing mount doesn't mean the lens is meant for fix-focus use.
(I'm not saying, by the way, that it is an LF lens. Just that a focussing helicoid is not the only way to focus a lens).
Holes in the lens could really only serve one purpose: cooling or heating.
Cooling would imply great heat, and that you only get in a projection system.
Heating would be used to prevent a lens fogging up, which would fit with it being meant for aerial use.