
ACCORDING TO THE PROJECT OF FRIEDRICH ZANDER

If you don’t have the special kit for fixing the abrasive wheel in the Chuck of a drill — assemble it from the available parts. Only need a screw, two large washers and nut. The circle is placed between the washers, it is introduced the screw and then the entire clip is tightened with the Read more…
Patrol flying boat NC-4. During the First world war, the only transport artery between America and Europe was a sea passage across the Atlantic. This way for the transport ships was quite a long and risky as the oceans they lay in wait for German submarines and warships.
Catamaran-vetrohod with hybrid propulsion. Despite the almost complete power supply equipment heat engines, shipbuilders are still hoping to create a workable ship, driven by wind. Only the last decades appeared sailboats with automated staging, management and cleaning of sails, Verkade with rotary motors, sailboats with a rigid sail-wing and kite sail…