folding rotorcraft
The layout of a single-seat or two-seat experimental machine is presented. The fuselage is streamlined (taking into account the lift of rotor mode and drag reduction of fixed wing mode). The wing is short-range flat wing or swept wing. The core feature is the foldable rotor system on the upper part of the fuselage-the rotor blades can be folded along the axis and stored above the fuselage or wing (simulating the experimental function of "rotor stowing and switching fixed wing flight"). The rotor shaft and transmission structure are clearly visible.
World War II German Pak 38 50mm anti tank gun
The military equipment developed by Germany in 1938, the World War II German Pak 38 50mm anti tank gun was developed in 1938, with a total length of 4.75 meters, a width of 1.85 meters, a barrel length of 3.137 meters, a weight of 813kg, and a crew of 3-6 people.
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