Posted in response to wrenchman guesting on The Muppet Show who calculated the payload capacity of ProDropper for those lacking an engineering background.

"Correct calculations - more than enough for instance for any of these applications that could represent a huge market over the coming years:

Lifeguard use to drop buoyancy aids to people in the water far quicker than a lifeguard could reach them:

https://www.youtube.com/watch?v=VdSy1y-fcK4

Quick reaction delivery of medical items capable of saving heart attack victims without specialist medical personal being present, using rapid transit in a direct line at high speed, avoiding traffic, and using radio communication to pass instructions from medical professionals in a control center to unqualified first aiders on-scene (obviously not in the USA where operator line of site restrictions will apply initially but possible in many parts of the world):

https://www.youtube.com/watch?v=y-rEI4bezWc

The DSUS trademarked ProSearch and ProCargo range of offerings, with their commercial / industrial grade construction are ideal for public safety use and it is known that the company is actively pursuing customers and is able to mount detailed demonstrations right now since they have 4 BOD members who have been granted their FAA 333 Exemptions for commercial operations of drones.