At the end of World War II, design work began on a request from the Soviet Navy for a jet-powered flying boat.
The specifications called for a radar-equipped aircraft with a three-man crew, capable of a speed of 800 km/h, and with a range of 2000-2500 kilometers.
However, the prototype experienced severe vibrations and hydrodynamic instability at 165 km/h and was nearly destroyed in testing.
Extensive testing continued to 1956, however, the development of land-based long-range reconnaissance aircraft put the project into jeopardy.
[3] Data from Beriev's Jet Flying Boats[4]General characteristics Performance Armament