Flying skateboard concept development

refinement of need
-high capacity low weight power source (high power density)
-how much load to carry?
-safety options
-dimensions 
-how high do you want to fly?
-shape requirements?
-how easy does it need to be to use?
-how maneuverable does it need to be?
-does it need to be able to hover in place
-terrain
-how fast does it need to go?
-durability?
-what kind of measurements need to be made?
-how much does it need to cost?
-how many do you expect to make
-what is the timeframe
-how long should it run for?