I made this ghost for racing with 3s battery (it's a racing category in Belgium). It tried to find the perfect balance between weigh to power on 3s. For that i used 2205 2400kv rcx motor and 5040 props to keep a good acceleration although I might lose some top speed but I think 3s competition is not about the best top speed.
Then I have worked on the aerodynamic, at first I wanted to heatshrink the whole arm with the motor wire to have the sleekest profile but I decided to go for electrical tape for the ease of repair.
Because I use flysky and only one big receiver is really reliable I end up too short of room inside to put the sma connector so I used a simple wip antenna.
The weight is 245g without battery and 390g with the 3s I'll use to compete. I need led light for the race so I designed a little 3d printed led holder.
In the end it works very well I have crazy long flight time out of my battery and very decent performance, clearly my fastest quad on 3s. It is also impressively quite. The hglrc stack is amazing, without any tune it is my best flying, smoothest quad.