just found this site with new information on Deep Angel
The Shkval (Squall) is the revolutionary new breed of torpedo in use by Russian Naval forces.
The Shkval is the first use of supercavitational technology in modern weapons and represents perhaps the largest leap forward in underwater warfare
since the invention of the submarine itself.
Launched from Bars (Akula) and Antyey (Oscar) class submarines, Shkval torpedoes travel at over five times the speed of conventional torpedoes.
Propelled forward by a rocket engine, there are no countermeasures or defenses which can stop the Shkval.
Research on developing a self propelled supercavitational projectile began in the early 1960’s at the Ukrainian Institute of Hydromechanics. It took
over a decade for the fundamental problems to be solved, during which time, the sound barrier is believed to have been first broken underwater. The
research led to the construction of underwater supercavitating rifles for use by elite Russian Spetznaz troops, and in the mid 1970's to the creation
of the world’s first supercavitating torpedo.
First appearing in 1977, the original VA-111 Shkval is some 26 ft (8 m) long and is thought to have a range of around 5 miles (8 kms). Believed by
some to be unguided, sources differ on whether the torpedo is nuclear capable. The Shkval is propelled forward by a solid rocket motor. Traveling at
over 300 mph (500km/h) the Shkval is so fast that (despite being equipped with one) it does not even require a warhead! Its sheer mass and velocity is
enough to sink an opposing submarine.
Development of the Shkval has continued through the 1980’s and 1990’s to the present day. Very little information is available about the Shkval II,
the existence of which was made public by the Russian government in 1998. Rumours state a top speed of possibly 450+ mph (720 kph/h) and a vastly
improved range, believed by some to be in the region of 60+ miles (100 km). The fact that the Shkval II is guided renders it vastly superior to the
original Shkval. The Shkval II is thought to be able to supercavitate, then if need be slow down and reacquire its target, before speeding up and
homing in for the kill. Yet newer techniques developed by Ukrainian scientists are believed to offer the possibility for high speed supercav guidance
The Russian Navy has always pursued a different approach to the United States ‘run silent, run deep’ philosophy on submarine warfare. Placing more
emphasis on speed rather than silence, it appears the Russians may have backed the winning horse.
Shkval has often been classed as a defensive weapon, used to protect against the Russians inability to run as silent as opposing submarines. Such
ideas, however, have been put to rest with the creation of the Shkval II and further guided variants.
With their longer ranger, the Shkval II and newer variants could potentially be launched at a distance of over 60 miles, and home in on their target,
with no countermeasures available. As such, a single nuclear equipped Shkval could take out a carrier battle group whilst sitting tens of miles
Little is known of current Russian Shkval projects, other than the amazing potential which supercavitational projectiles hold. The capacity to create
a supercavitating torpedo/rocket which would race towards a target underwater and then become airborne once nearing a coastline would render any kind
of anti ballistic missile shield useless.
The Russian Navy is the primary user of the Shkval. A downgraded Shkval, the Shkval-E went to an international arms fairs in 1995, and both China,
Iran and France have been known to have acquired limited numbers of Shkvals. The Russian press has claimed that the technology of the Shkval cannot be
reverse-engineered and thus the Russian Navy is marketing the export variant aggressively.
The Shkval rocket torpedo represents the first step in the underwater revolution which is fast approaching. As funds pour into supercavitational
research around the world it becomes more and more clear that control of supercavitation will soon equate to control of the seas.
It should be noted that a US business (apprently acting for the Canadian secret service) was arrest in Russia for trying to steal Shkval secret (see
FAS link on first post)