Their yields are about the same as most land based ICBM warheads or bombs dropped by airplanes: from 100 kiloton to 300 kilotons. Yields in the megaton range as were common in the 1950s through 1970s have been shown to have few real military uses and more damage can be done using several bombs of less total yield at lower cost using warheads in the 100 kiloton to 300 kiloton range.
Deaths will depend on too many variables outside the characteristics of the warheads/bombs themselves, including the target, burst height, availability of shelters, emergency preparedness of the population, etc.
Since its free-fall nuclear weapons arsenal was decomissioned in 1998, the United Kingdom's only means of nuclear weapons delivery is via submarines and SLBMs.
Submarines armed with nuclear ballistic missiles
Submarines armed with nuclear ballistic missiles
Submarines armed with nuclear ballistic missiles
Eisenhower believed in stockpiling nuclear weapons and building the planes, missiles, and submarines needed to deliver them.
As of end of 2010, the Russian Navy included 12 strategic submarines of four different types. The submarines can carry 160 sea-launched ballistic missiles (SLBMs) that can carry 576 nuclear warheads.
The main advantage to having nuclear powered submarines is that a nuclear powered submarine can, if designed wisely, stay submerged for months on end. The only limitation really is food and the crew's psychological state. This is extremely useful in nuclear deterrance considering that a nation can send out nuclear powered, nuclear weapon equipped submarines on patrol for use in case of a nuclear exchange. If an attacking nation destroys the missiles silos of it's target and it's nuclear armed bomber wings, the defending nation would still have the use of it's nuclear weapons onboard it's ballistic missile submarines.
USA has the most nuclear submarines
US, USSR, Red China, Great Britain, and France have bona-fide atomic subs, taht is submarines powered by Nuclear reactors. all of these powers also have atomic and in some cases conventional, ( Russia has some) submarines which are equipped with long range nuclear missiles- such as Polaris, Poseidon, Trident, which are properly Missile types rather than submarine types.
Weapons launched (fired) from submarines include torpedoes, ballistic missiles, or cruise missiles. These are the primary weapons, and a few other options exist.
Depends on what it is armed with, if it is an f15, it would most definitely be a real threat to an enemy aircraft, but if it was a nuclear armed b52, it would be deadly to whole nations. Probably the most deadly would be the navy's nuclear armed submarines
The main British Navy yard for arming British submarines with Tridents is Coulport. Trident missiles are small nuclear warheads and British nuclear submarines are armed with 16 Tridents on each voyage, alongside other weaponry such as anti-ship torpedoes. They are capable of carrying more Tridents, but there is no need for them to unless there is a direct threat of nuclear war.