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Originally posted by getreadyalready
The Cuban Missile Crisis says otherwise. We don't want high-powered weapons so close they can strike without warning, just like Russia doesn't want our weapons in Poland and Germany.
Originally posted by Dreine
reply to post by getreadyalready
The AKULA is a nuclear-powered attack submarine... I would actually be concerned had it been a TYPHOON or OSCAR variant.
The Project 941 or Akula, Russian "Акула" ("Shark") class submarine (NATO reporting name: Typhoon) is a type of nuclear-powered ballistic missile submarine deployed by the Soviet Navy in the 1980s.
en.wikipedia.org...
Originally posted by getreadyalready
reply to post by hp1229
Also, why would they admit to it now? Why would we admit to it now? This seems like a cry for more funding. If they did penetrate our detection, they wouldn't tell us about it and get us to fix the flaws. I think it is more likely that we DID detect them, but we played coy, and now we are using it for public perception to increase funding.edit on 14-8-2012 by getreadyalready because: (no reason given)
The Obama administration’s defense budget proposal in February cut $1.3 billion from Navy shipbuilding projects, which will result in scrapping plans to build 16 new warships through 2017.
The budget also called for cutting plans to buy 10 advanced P-8 anti-submarine warfare jets needed for submarine detection.
Originally posted by Dreine
No longer in the Navy, have been out for a little over a year, but here goes.
SOSUS is still operational, or was the last I knew. I was not a sonar tech (I was a crippie), but I do remember them speaking about it in CIC from time to time.
An AKULA class is no joke... that technology with it's caterpillar drives is absolutely astounding. The sub guys always used to tell us surface Sailors that 'If you put our boys (US, best trained submariners on the planet) on an AKULA(quietest non-diesel submarine), you could active ping all day long and you'd never find us."
Ship propulsionAn electric current is passed through seawater in the presence of an intense magnetic field, which interacts with the magnetic field of the current through the water. Functionally, the seawater is then the moving, conductive part of an electric motor. Pushing the water out the back accelerates the vehicle in the forward direction.
The physics equation describing this propelling force is Fmag = I (L × B) where L is the vector in the direction of the current 'I' and its length is the distance the current travels, B is the magnetic field, and × denotes the cross product.
MHD is attractive because it has no moving parts, which means that a good design might be silent, reliable, and efficient.
The major problem with MHD is that with current technologies it is more expensive and much slower than a propeller driven by an engine[citation needed]. The extra expense is from the large generator that must be driven by an engine. Such a large generator is not required when an engine directly drives a propeller. However, a battery system would allow a hybrid marine ship with potential for high efficiency and lower emissions. Additionally, the MHD design eliminates many of the wear and friction pieces of the drivetrain with a directly driven propeller by an engine.