Supercavitation: going to war in a bubble.

The missile controls its direction using four fins that skim the inner surface of the supercavitation envelope.

His pioneering work in the 1950s is credited with successful developments in the theory of supercavitation for naval engineering.

These processes are manifested in different ways, the most common ones and promising for control being bubble cavitation and supercavitation.

Iran claimed to have successfully tested its first supercavitation torpedo on 2 April and 3 April 2006.

Josef Papp claimed in 1966 to have built an underwater propulsion system which took advantage of supercavitation to achieve incredibly high speeds.

The earliest distinguished studies of academic type on the theory of a cavitating flow with free boundaries and supercavitation were published in the book followed by.

Some sources have speculated it is based on the Russian VA-111 Shkval supercavitation torpedo, which travels at the same speed.

In 2005, DARPA announced the 'Underwater Express program', a research and evaluation bid to establish the potential of supercavitation.

The supercavitating propeller is a variant of a propeller for propulsion in water, where supercavitation is actively employed to gain increased speed by reducing friction.

The great speed required for supercavitation to work can be achieved temporarily by a projectile fired under water or by an airborne projectile impacting the water.

Han: A nuclear attack submarine from the country of Gui (formerly China) that has a stealth propulsion mode, and unguided supercavitation torpedoes.

Most military and industry analysts have concluded that the Hoot is reverse engineered from the Russian VA-111 Shkval supercavitation torpedo which travels at the same speed.

General Dynamics of the United States became its licensee, and the Pentagon awarded its first R&D naval research project in the field of supercavitation.

'Supercavitation' is the use of cavitation effects to create a large bubble of gas inside a liquid, allowing an object to travel at great speed through the liquid by being wholly enveloped by the bubble.

This speed is a result of supercavitation: the torpedo is, in effect, flying in a gas bubble created by outward deflection of water by its specially shaped nose cone and the expansion of gases from its engine.

The U.S. Navy has contracted with the General Dynamics Electric Boat Division to support development of the Underwater Express, an undersea transport capable of controllable speeds up to 100 knots (185 km/h) through supercavitation.

Some torpedoes, such as the Russian VA-111 Shkval, the Iranian Hoot (missile) or the proposed German Unterwasserlaufkörper / Barracuda, Diehl BGT: Unterwasserlaufkörper use supercavitation to increase their speed to over .