Shipbuilding

Shipbuilding is the construction of ships and other floating vessels. It normally takes place in a specialized facility known as a shipyard. Shipbuilders, also called shipwrights, follow a specialized occupation that traces its roots to before recorded history.

Shipbuilding and ship repairs, both commercial and military, are referred to as "naval engineering". The construction of boats is a similar activity called boat building.

The dismantling of ships is called ship breaking.

History

Prehistory

Archaeological evidence indicates that humans arrived on Borneo at least 120,000 years ago, probably by sea from the Asian mainland during an ice age period when the sea was lower and distances between islands shorter (See History of Borneo and Papua New Guinea). The ancestors of Australian Aborigines and New Guineans also went across the Lombok Strait to Sahul by boat over 50,000 years ago.

4th millennium BC

Philippine Navy

The Philippine Navy (PN) (Filipino: Hukbong Dagat ng Pilipinas; Spanish: Armada Filipina) is the naval warfare service branch of the Armed Forces of the Philippines and one of the three uniformed services of the Republic of the Philippines. It has an estimated of 24,000 active personnel and operates 101 ships in active service.

Mission

operations in support of the Unified Commands in the accomplishment of the AFP mission".

Its powers and functions are as follows:

Andhra Pradesh

Andhra Pradesh (/ˌɑːndrə prəˈdɛʃ/)( pronunciation ) is one of the 29 states of India, situated on the southeastern coast of the country. The state is the eighth largest state in India covering an area of 160,205 km² (61,855 sq mi). As per 2011 census of India, the state is tenth largest by population with 49,386,799 inhabitants. On 2 June 2014, the north-western portion of the state was bifurcated to form a new state of Telangana. In accordance with the Andhra Pradesh Reorganisation Act, 2014, Hyderabad will remain the de jure capital of both Andhra Pradesh and Telangana states for a period of time not exceeding 10 years. The new river-front proposed capital in Guntur district is Amaravati, which is under the jurisdiction of APCRDA. Economically, the Gross State Domestic Product (GSDP) of Andhra Pradesh at today's prices stood at ₹2359.3 billion (US$35 billion) and the Gross State Domestic Product at the prices for the 2013 financial year were ₹4193.91 billion (US$62 billion). The average income of the state rose 62.6% from ₹25,959 (US$380) (2004–05) to ₹42,186 (US$620) (2012-13).

Amphibious warfare

Amphibious warfare is a type of offensive military operation that today uses naval ships to project ground and air power onto a hostile or potentially hostile shore at a designated landing beach. Through history the operations were conducted using ship's boats as the primary method of delivering troops to shore. Since the Gallipoli Campaign specialised watercraft were increasingly designed for landing troops, materiel and vehicles, including by landing craft and for insertion of commandos, by fast patrol boats, zodiacs (rigid inflatable boats) and from mini-submersibles.

The term amphibious first emerged in the USA during the 1930s after design of the Landing Vehicle Tracked where the first prototypes were named Alligator and Crocodile, though neither species are amphibian. Amphibious warfare includes operations defined by their type, purpose, scale and means of execution. In the British Empire at the time these were called combined operations which were defined as "...operations where naval, military or air forces in any combination are co-operating with each other, working independently under their respective commanders, but with a common strategic object." All armed forces that employ troops with special training and equipment for conducting landings from naval vessels to shore agree to this definition.

Amphibious assault ship

An amphibious assault ship (also referred to as a commando carrier or an amphibious assault carrier) is a type of amphibious warfare ship employed to land and support ground forces on enemy territory by an amphibious assault. The design evolved from aircraft carriers converted for use as helicopter carriers, but includes support for amphibious landing craft, with most designs including a well deck. Coming full circle, some amphibious assault ships now have a secondary role as aircraft carriers, supporting V/STOL fixed-wing aircraft.

The role of the amphibious assault ship is fundamentally different from a standard aircraft carrier: its aviation facilities have the primary role of hosting helicopters to support forces ashore rather than to support strike aircraft. However, some are capable of serving in the sea-control role, embarking aircraft like Harrier fighters for CAP and anti-submarine warfare helicopters or operating as a safe base for large numbers of STOVL fighters conducting air support for the Marine expeditionary unit once it has gone ashore. Most of these ships can also carry or support landing craft, such as air-cushioned landing craft (hovercraft) or LCUs.