Inventor Creates Flotation Device Bazooka
Australian inventor Sam Adeloju has won the £20,000 ($32,000) James Dyson Award for inventing the coolest piece of life-saving equipment ever. The Longreach is a modified bazooka which can fire an expanding flotation device up to 150m to a person in distress. From the article: "Mr Adeloju told NEWS.com.au that the Longreach was inspired by a grenade-launch training session with the Army Reserves. Weighing just 3.5kg, it shoots the rescue device 150m in a manner similar to the way the army uses a grenade launcher to deliver flares and aerial observation devices. Hitting the water activates an expanding foam unit in the Longreach rescue unit, which also incorporates LED illumination and a vortex air whistle."
Probably takes some training to be good at shooting it accurately. For example I worked as a lifeguard for several summers when I was in high school. When we threw rescue tubes (those red foam things), we were taught to always overthrow the target and then pull the tube back toward the victim so they can latch on easily.
See, the problem with your invention is that it doesn't involve shooting a floaty-grenade launcher. Back to the drawing board with you!
;-)