Has anyone made a water inlet, for colling esc, in the mast? I now have two fuselages and I would like to have the water inlet in the mast instead of in the fuselage.
What about using aluminium break line/pipe that gets welded to the mast just above the fuselage? The pipe could run all the way up through the mast plate.
Yes on/in the 3D part! You will get a good flow and less drag compared to having a tube sticking out of your mast! Plus, you may not need to drill additional holes on your mast.