'A' bomb test on Able Day during Operation Crossroads nuclear testing at Bikini Atoll. U.S. navy sailors aboard a U.S. Navy ship. Sailors practice shielding their eyes with hands and heads bent down. Admiral's flag, United States flag and signal flag can be seen. Mushroom cloud seen rising in the sky due to atomic bomb explosion. Sailors stand to watch impact.
U.S. marines indulge on board a U.S. navy ship on Able Day during Operation Crossroads in Bikini Atoll. Group of sailors indulge various activities on the ship deck. Two officers set up camera equipment for recordings. Marines seen talking and looking towards the sky. A marine observes the sky through binoculars. Army officers play cards and read a magazine. Film cameras can be seen in the background. An OS2U Kingfisher float plane with cadets in the foreground on the ship deck.
USS Saidor passes by. Four navy cadets play deck tennis and few others do routine physical exercises. Sailors fishing over side of ship. Two personnel sitting on deck reading letters.
'A' bomb explosion on Able Day during Operation Crossroads in Bikini Atoll. Night view of the explosion and smoke. A mushroom cloud of white smoke and dust moves upwards during the day. U.S. Navy personnel watch the explosion.
Aerial view of shot Able, the first test of the United States Operation Crossroads nuclear weapons tests in the Bikini Atoll. Bright flash followed by rising mushroom cloud after bomb explodes. Blast wave seen overtaking unmanned test ships in the ocean.
Operation Crossroads activity preparing for Test Able. Shows LCT- 1113, LSTs 133 and 545. Monitoring personnel are seen maneuvering in small boats at side of LST-133. LST-133 was the first tank landing ship to reach Omaha beach during the Normandy Invasion and also served in Okinawa. William I. Scheunemann was one of the many who served aboard LST-133 during World War II.