Is this ordnance related?

[Dronic69]

Morning All,

I spotted this several months ago in an antique centre - looks "bomb" related, but ..................... ?

Interesting how the body housing cowl is angled - manufactured that way.

Any ideas?
Thanks
Cheers
Drew

BTW - the chair in one of the photos will provide a size comparison

 

[BMG50]

Looks like a propeller system from a water craft.