We can say that in the mid 30-ies of the aircraft wing went down from the sky… ice. It was then that ka “ice birds” high — speed snowmobiles — instead of sails began to put aerodynamic wings are very similar to aircraft. But it took another few decades, and airfoil on the ice in the truest sense of the word was on its feet. Moreover, skaters it just became to put on… coat.
The design of his volume, that is, the athlete is inside in the cabin. And the front part of the hard — truncated palukanos of Plexiglas with a height of 2400 mm back from normal tissue. Instead of Plexiglas can be used, for example, plywood or sheet aluminum, but then you need to build a transparent insert, for example, of Mylar film window for review. Astrodynamicist profile is symmetrical, the thickness of the section at the top 15 and bottom 20%.
The wing has spars and ribs constituting the frame. The first designs of our sails are two vertical aluminum strips with a width of 20 and a thickness of 5 mm, put on the edges of the front part: they are attached to her every 100-150 mm seven main bolts” auxiliary M5 and M8. The frequency of mounting is explained by the fact that the spars are like likes under them during Assembly refuel front minovanii luff of the sail. Ribs — three frame front and rear armor. The frames bent from the pipe d 12X1 mm — two lower and 15X3 mm upper. Its tapered mallet ends on the bolts they are attached to the side members, and a middle pair of bolts each to the frontal part of plexiglass.