
A turbine with double energy return and supersonic nozzles was invented by an engineer from Russia
Sergey Isaev proposed a scheme for a radial birotational unit with two independent rotors

Sergey Isaev proposed a scheme for a radial birotational unit with two independent rotors

The new design is created in a minimalist two-dimensional style

The rotor is driven by a turbine without direct mechanical connection

An Over-the-Wing Air Intake Will Solve the Problem of Airliner Stability

Technological equipment moved into the hull of a tracked vehicle

GRUB can carry at least two 122 mm caliber shells for MLRS