Originally Posted by
vertical grimmace
And exactly how many of those are being sold?
Not many but that is because electrical propulsion systems do exist.
The point of my post was that you claimed we "Never would have seen an engine powered quad"
But that statement is not true - is it? Because they already exist.
Here is another one:
https://www.youtube.com/watch?v=XnP3jTwRPv0
At least one company was/is? working on a prototype Nitro quad to bring to market.
http://curtisyoungblood.com/V2/produ...-mantaray-1230
Without the evolution of electric propulsion systems we likely would have seen a lot more development of engine powered quads.