no it isnt___________
You could easily make a VEX frame drone fly with brushless motors, a normal FC and a lipo. The challenge would be to make an all VEX one, even if using some OEM props.
A V5 motor can give 11 watts, which is power/sec. By dividing by 1000 to get to kW and multiplying by 3,600 to get kWh, I end up with 39.6 kWh, which is definitely enough.
cool so doing this with V5 should be easy as long as all the proplers are the same