The lift provided by the Custer semi-circular wing is much more obvious than that of the previous Conda effect aircraft. The advantages are obvious, the lift is improved obviously, basically it will not stall, and the high angle of attack performance is extremely excellent. The disadvantages are also obvious. The wing is not lengthened. The 3D printer inside a brick is the inside machine provided by Zongwei Cube. It’s not available for the time being. The other orange one is made by myself, and there is a production video in front.
