The electric Xenos project rolls on, and forces one to rethink what we hold to be conventional. Most air-cooled horizontally opposed airplane engines need cooling air coming in on either side of the prop spinner to cool the cylinders. The electric motor is slung underneath the prop shaft, so there needed to be a hole there to bring air in, and the standard inlets were superfluous, so through the magic of fiberglass, they’re gone! A little foam, a little glass, a touch of micro and some primer the magic rolls on!
For those following the project, we still have to build an internal cooling duct for the motor (sort of a plenum or baffles) and install the hinges to hold the two cowl halves together. But like everything, we can’t install the lower hinge until we know how it ends, and we don’t know that until we build an inlet lip, and we don’t know that until the plenum is mounted… one thing always leads to another.
And Sonex might need a mold update for their cowling—at least for those thinking about going electric!