Step 3: Time to Start Cutting
Additionally, I notched out the vent hole, where the air will enter the skirt. According to Beaty’s Ultra-Simple Hovercraft design, the vent hole is placed halfway between the center and the edge of the disc. I obliged him on this. While I was cutting this hole I started to think about the center hole. Beaty uses a bolt to hold the center of the skirt up close to the disc to create a doughnut shape. I wondered if, instead of using a bolt and nut, I instead used a small pipe and then screw a pressure gauge onto the pipe. This way I could get a pressure reading of the air under the skirt.