"Typhoon" is the largest and most expensive submarine ever built. American superpower should at sea with the Pacific Fleet, but beneath the surface of the sharks Russia always haunt them go their potentials.
SSBN carrying code, this submarine is nuclear-powered submarines carrying intercontinental ballistic missiles can bring the continent in the stomach. Akula built by Sverodvinks Shipyards in the White Sea near Archangel. While the headquarters of the Akula class submarines in the Russian Navy Base East Fleet at Litsa Guba.
Akula system is designed with Multi-hulled, five layers are placed inside the inner hull hull superstructure of two main parallel. Her skin is equipped with a tile that is coated with sound absorbing materials County. Inside there are 19 compartments including a strengthened with the module which is home of the main control room and the electronics compartment located behind the missile launcher tubes. The submarine is also designed to be able to break the ice and move under the ice. Advanced stern fin with horizontal hydroplane placed behind the propeller. Horizontal Nose hydroplane placed in the bow with retractable system.
Akula capable of carrying 20 RSM-52 InterContinental, three stage solid propellant balistic missiles. Two lines of the launcher tube is placed in the main hull. Each missile consists of 10 MIRV's (multiple re-entry vehicles), with each carrying a nuclear warhead 100 kilotons. Each MIRV hit can be set for different targets. Distance is 8.300 km cruise missile with an accuracy of 500 meters. Weight 84.000 kg in one missile, designed by Makayev Design Bureau. RSM-52 is also known by the NATO code SS-N-20 Sturgeon.
Akula is also equipped with four 630 mm torpedo launchers abung and two 533 mm torpedo tube launcher. Total submarine can carry 22 missiles / torpedoes and conventional Skhval surface of various types. Torpedo tube launcher can also be used to remove mines.
Akula powered by two nuclear reactors that supply two gas turbines and turbogear assemblies to move the ship. Each reactor produces 190 megawatts of power, the engine produces power turbin is at 50.000 and 3.200 kW hp turbogear. Two 800 kW diesel generator was also prepared as a backup.
The project target is to build a static diving scale true Akula submarine based on the Dumas Akula kit (which is shown on the picture above).
The kit is scale 1:130 which is app. 85 cm long (33") and has a beam of 10 cm (4"). (The real sub is app. 110 meters long and has a beam of 13.5 meters).
I am only going to use very little from the kit, as all the fins are just metal plates and the diving system is dynamic. I am therefore only using the top and bottom hull, the sail and the radar dome. The project is divided into several different building areas, and therefore the tracking of the project will be in separate articles. These activities are pretty much independent, and will be done in parallel to speed up the waiting on parts to arrive.
The sub will consist of:
The Dumas Akula kit
New rudder and planes
WTC (Water Tight Cylinder)
Piston dive system
Retractable diving planes
Working periscope
CPU control system
The Russian name for the submarine is Giepard. See the link section for useful
Akula links.
The project will be described in the sub categories as shown in the menu at the left.
In order to avoid that the motor, battery and electronics get wet it must be in a water tight place in the sub. There are several ways to do this, and the way that I have chosen it is to use a water tight cylinder (WTC) which is a water tight tube which is placed in the sub. It is then only the inside of the WTC that is water safe, while the rest of the sub is "free flooding". This WTC will be placed below the water line to make it easier to dive the sub.
When the sub wants to dive, it must add weight equal to the volume of the sub above the water! This means, that in order to make it easier to dive (require less weight) the volume of the sub above the water must be minimized. This is why the WTC is placed below the water line. When the sub dives, water will flow into the free flooding area above the WTC so it is only the volume of the hull that must be equalized. This is also why that there should not be any air trapped above the water line (e.g. the radar pod should be free flooding).
The sub is diving by adding weight by sucking in water - in my case by using a piston. In this way the air volume below the waterline is getting smaller and by that the buoyancy smaller. This will force the sub under water. When the sub is completely under water the diving dept is controlled by the dive planes and not by the diving tank. When the sub wants to surface again the process is reversed.
The radio waves must be in the MHz area to be able to penetrate the water, so 2.4 GHz will not work. In Denmark that leaves us with either 27MHz or 40MHz as 35MHz are reserved for airplanes.
The radio waves can go to a dept of app. 3.5m, so diving below that dept will be without radio control!
The pressure at 10m is 1 bar, so to make a safe sub, the WTC should be able to handle at least 1 bar.
The boat will not work in saltwater as the radio waves can't penetrate that.
