It is a blueprint of a toy hovercraft for science Olympiad. The skirt is a plastic bag that is on the bottom and the on top of the skirt is a piece of foam that is around 25 by 25 inches and the foam should be 5 millimiters thick. In that should be a diagram with a hole inside that leads inside the skirt which is around the entire foam and it also underneath. The sides of the bag are taped to the sides of the board. Then there is a cicuit on top with a fan/propellor and motor facing forward, and there should be another fan/propellor with the motor facing down so it can blow air into the skirt, then the circuit should be nicely organized and the battery should be in a center. There should be something that looks like a small soor net that is black, that design to put on top of both fans to work as a fan gaud. At the front most part of the build there is a 20 cm 1/4 diameter wooden dowel. There is wholes in the bag/skirt to let the air in and out. Mehr sehen