<P> A beach party takes place at dusk on Amity Island, where a woman named Chrissie Watkins goes skinny dipping in the ocean . While treading water, she is violently pulled under . The next day, her partial remains are found on shore . The medical examiner ruling the death a shark attack leads to Police Chief Martin Brody closing the beaches . Mayor Larry Vaughn opposes Brody's idea, fearing that it will ruin the town's summer economy . The coroner now concurs with the mayor's theory that Watkins was killed in a boating accident . Brody reluctantly accepts their conclusion until another fatal shark attack occurs shortly thereafter . A bounty is then placed on the shark, resulting in an amateur shark - hunting frenzy . Local professional shark hunter Quint offers his services for $10,000 . Meanwhile, consulting oceanographer Matt Hooper examines Watkins' remains, and confirms her death was caused by shark attack . </P> <P> When local fishermen catch a large tiger shark, the mayor proclaims that the beaches are safe . Hooper disputes it being the same predator, confirming this after no human remains are found inside it . Hooper and Brody find a half - sunken vessel while searching the night waters in Hooper's boat . Underwater, Hooper retrieves a sizable great white shark's tooth embedded in the submerged hull . He drops it after finding a partial corpse . Vaughn discounts Brody and Hooper's claims that a huge great white shark is responsible, and refuses to close the beaches, allowing only added safety precautions . On the Fourth of July weekend, tourists venture the beaches . Following a juvenile prank, the real shark enters a nearby estuary, killing a boater and causing Brody's son, Michael, to go into shock . Brody then convinces Vaughn to hire Quint . </P> <P> Quint, Brody, and Hooper set out on Quint's boat, the Orca, to hunt the shark . While Brody lays down a chum line, Quint waits for an opportunity to hook the shark . Without warning, it appears behind the boat . Quint examines the shark and harpoons a barrel into it, but it drags the barrel underwater and temporarily disappears . </P> <P> At nightfall, the shark returns unexpectedly, ramming the boat's hull, and disabling the power . The men work through the night, repairing the engine . In the morning, Brody attempts to call the Coast Guard, but Quint smashes the radio . After a long chase, Quint harpoons another barrel into the shark . The line is tied to the stern cleats, but the shark drags the boat backward, swamping the deck and flooding the engine compartment before breaking the cleats off . Quint then heads toward shore, intending to lure the shark to shallower waters and suffocate it, but the engine fails . </P>

What is the name of the boat in jaws