<P> Indianapolis was then sent to Guam, where a number of the crew who had completed their tours of duty were replaced by other sailors . Leaving Guam on 28 July, she began sailing toward Leyte, where her crew was to receive training before continuing on to Okinawa, to join VADM Jesse B. Oldendorf's Task Force 95 . </P> <P> At 00: 15 on 30 July, she was struck on her starboard side by two Type 95 torpedoes, one in the bow and one amidships, from the Japanese submarine I - 58, captained by Commander Mochitsura Hashimoto, who initially thought he had spotted the New Mexico - class battleship Idaho . The explosions caused massive damage . Indianapolis took on a heavy list, (the ship had a great deal of added armament and gun firing directors added as the war went on and was top heavy) and settled by the bow . Twelve minutes later, she rolled completely over, then her stern rose into the air, and she plunged down . Some 300 of the 1,195 crewmen went down with the ship . With few lifeboats and many without lifejackets, the remainder of the crew was set adrift . </P> <P> Navy command did not know of the ship's sinking until survivors were spotted three and a half days later . At 10: 25 on 2 August, a PV - 1 Ventura flown by Lieutenant Wilbur "Chuck" Gwinn and his copilot, Lieutenant Warren Colwell, spotted the men adrift while on a routine patrol flight . Gwinn immediately dropped a life raft and radio transmitter . All air and surface units capable of rescue operations were dispatched to the scene at once . </P> <P> The survivors suffered from lack of food and water (leading to dehydration and hypernatremia; some found rations, such as Spam and crackers, amongst the debris), exposure to the elements (leading to hypothermia and severe desquamation), and shark attacks, while some killed themselves or other survivors in various states of delirium and hallucinations . Two of the rescued survivors, Robert Lee Shipman and Frederick Harrison, died in August 1945 . </P>

How long were the survivors of the uss indianapolis in the water