A skirt 10 surrounds and is attached to the hull 2. Draw a semi-circle, the center of which is exactly below the edge of the hull, and facing the end of the attachment strip. If your hull design is complex, you can have two different angle values on the same piece of skirt, as shown on the drawing. Rock Paper Scissors Using Tinkercad Circuits and Arduino, Punchy the MECH & the Autonomous Fight Club, pencil, graph paper, or drawing software like Geogebra, truck tarpaulin (density of 600g per square metern, must resist to stretching lengthwise and widthwise), something suitable for cutting out this truck tarpaulin (very good scissors or a very good cutter, I guess), large and thin pieces of cardboard to reproduce your skirt templates on. . Team involved in high speed filiming exercise. Fig. Image result for hovercraft skirt design. We will continue the tutorial with older drawings. Draw it at 1 : 1 scale to avoid mistakes, you have to be as precise as possible to get a good result. A lift fan is used to create a pressurised cushion of air between the hull and the surface over which the craft is travelling, contained by the skirt. Skirt configuration greatly affects the performance of an ACV or an SES. This is certainly the most difficult step of the build : you will have to work in a smaller and smaller space as you tape the skirt. Often it is 4.