I am personally in the process of installing a water canon as used by tug boats. The pump will be a little difficult to house but I am sure I will come up with something. The previous owner (Sydney Harbour Authority) reckons I'll get 150 plus meters out of it if the wind is on my side. I should be able to hit em before I hear the engine noise.redphoenix said:I reckon sling-shot-powered flour-balloon launchers, rigged in a scotty mount, myself.
Works nicely in the NT beer-can regatta.