Russian divers have discovered an unmanned boat, built in 1938, in the Baltic Sea. The secret Soviet development sank during tests. This was reported by Konstantin Bogdanov, head of the reconnaissance and diving team.
The experimental project belonged to Leningrad engineers. They were working on creating a wave-controlled boat. Among the fragments of the boat, a nameplate was found — TK-171.
From one aircraft (MBR-2) in unmanned mode, 2 boats could be controlled, which could change speed, direction of movement, turn around, and go in reverse. But most importantly, at full speed, they could launch torpedoes.
In fact, the TK-171 was the world's first unmanned radio-controlled strike complex. The MBR-2 seaplane served as a command post from which the operator guided the boat.
The TK-171 could autonomously perform tasks for 4 hours. It was tested by a crew of 7 people.
On October 25, 1939, a torpedo minesweeper rammed the unmanned boat during a maneuver. As a result, 4 sailors were rescued, and three died.
