It is the smallest and lightest in its class of contemporary supersonic combat aircraft. In 2003, the LCA was officially named "Tejas". It was developed from the Light Combat Aircraft (LCA) programme, which began in the 1980s to replace India's ageing MiG-21 fighters but later became part of a general fleet modernisation programme. 'Radiance') is an Indian single engine, delta wing, light multirole fighter designed by the Aeronautical Development Agency (ADA) in collaboration with Aircraft Research and Design Centre (ARDC) of Hindustan Aeronautics Limited (HAL) for the Indian Air Force and Indian Navy. You may assume that tank internal pressure is always in equilibrium with the ocean's hydrostatic pressure and that the inlet pipe to the tank is at the bottom of the tank and penetrates the hull at the "depth" of the submarine.Aircraft Research and Design Centre (HAL)Äefence Research and Development OrganisationĤ0 (as of 30 October 2021 ) ![]() ![]() Consider a ballast tank, which can be modeled as a vertical half-cylinder $(R=8 \mathrm$ is important in maintaining the boat's attitude, determine the weight of water in the tank as a function of depth during the dive. The amount of water admitted is controlled by air pressure, because seawater will cease to flow into the tank when the internal pressure (at the hull penetration) is equal to the hydrostatic pressure at the depth of the submarine. A submarine submerges by admitting seawater $(S=1.03)$ into its ballast tanks.
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