Another design from master designer Max Zuijdendorp.
The Skyhawk has a modulair setup , you can completely built the different pieces, and join them later to complete the airframe, the wing and tail are screwed to the airframe,
for easy acces to the fan unit and battery acces.
The A4 "SKYHAWK" for mini fan 480 and 10 to 12 cells 1250mAh.