04 Dec

uss arizona explosion analysis

10. It can be seen from the above that the ignition of black powder will almost inevitably result in an explosion. 8. Discover (and save!) Times in all the references of the various sequences of events check reasonably well, that is, within 4 or 5 minutes. Whether this mass detonation resulted from a bomb detonation within either the smokeless powder or black powder magazines or whether it was initiated by fire traveling down thru open hatches to the black powder magazine is unknown; but the time involved between the. I left the J.C. mess at general quarters. Valor in the Pacific press event: I will be posting about this project, the team, the technology, partners, my participation, and … It will be realized that the black powder magazine is surrounded by the smokeless powder magazines. The signal gang, quartermasters, and all hands on the bridge went up as the signal men were trying to put out a fire in the signal rack and grabbing signal flags out to hoist a signal, the whole bridge went up, flames enveloping and obscuring them from view as the flames shot upward twice as high as the tops. ", It can be concluded from the above conditions that smokeless powder is difficult to detonate as a result of fire. Site Description and Analysis (continued) Beginning at the stem of the USS ARIZONA and heading aft, a swimming observer would be struck first with the very sharp lines of the bow. Depth of water was about 45 feet, and ARIZONA's drafts were 32'-6" forward and 33 feet aft. Video clip from "Pearl Harbor The Real Story" NYPearl Itr. The quartermaster asked the Capt. All other structure above the top edge of the side armor between frames 10 and 70 was completely demolished - in faet, most of it was missing. Their sacrifice, and that of the other men lost at Pearl Harbor, is now permanently memorialized by the USS Arizona Memorial, erected over her sunken hull in the berth it has occupied since shortly after 8 AM on 7 December 1941. The armor belt remained substantially in place. We landed at BOQ landing, Ford Island, Smith BM2/c USN boat coxswain making many trips for wounded and burned men, being delivered by Lt. Comdr. Share with: ... 1,547 160. bill jurens. The smoke issuing from the stack was quite obviously the result of incomplete combustion rather than an explosion or fire. During this raid, Arizona was hit by one torpedo and eight bombs, one of which passed through a magazine and lit cordite, causing an expansion of gases followed by a massive explosion. II turret. After the big explosion and "Swish", the men painfully burned and wounded, dazed beyond comprehension, came out on the quarterdeck and I had to stop some of them from entering into the flames later on, and directed them over to the stbd side of the deck to the gangway for embarking and encouraging them to be calm. Burning oil on the surface of the water was ignited. Two photos from today at World War !! The Pennsylvania-class ships were significantly larger than their predecessors, the Nevada class. We three were trying to get out the port door at the after end of the bridge during all this shaking, but could not, we staggered to the stbd side and fell on the deck just fwd of the wheel. Beginning with the pictures in the vicinity of 106, the characteristics of the conflagration shown are somewhat similar to those of an oil fire. I looked around and saw that there was nothing that I could do. Seymour was part of a team which was comprised of the NPS and National Geographic photographers that for ten days documented the interior first and second decks of the 608-foot long … Highlight & Comment if he wanted to go into the conning tower, but the Capt. The resultant explosion caused the ship to sink, and cost the lives of 1177 officers and crewmen. 110. When confined or in large quantities, the rate of burning increases with the temperature and pressure. This bomb, and possibly others, caused an intense fire which shortly covered the entire forecastle. Picture 46 definitely shows an explosion on the bow of ARIZONA. At various places between pictures 46 and 208 minor explosions on the forecastle of ARIZONA and possibly on the stern of TENNESSEE, can be seen. It gutted the forward decks. It seemed as though one bomb hit the port after anti-aircraft crew and came down through the casemate and Executive Officer's Office. USS Arizona (BB-39) was the second and last of the Pennsylvania class of "super-dreadnought" battleships built for the United States Navy in the mid-1910s. Courage and performance of all hands was of the highest order imaginable, especially being handicapped by adverse conditions and shipmates being blown up alongside them, there was no disorder or tendency to run around in confusion. 84 to 88. Me and Hurst grabbed the fire hose off its stowage on the fumigation box and assisted by Wentzlaff, took it to the fire plug at #4 turret, Fr. It contained 1075 pounds of black powder. This one was reported by reference (b) to have hit on the forecastle by No. The Army's experience indicates that it is difficult to detonate smokeless powder as the result of fire, unless confinement, temperature, pressure, and high density of loading are present. The explosion lifted the Arizona out of the water. Fire. Formatting & Comments Copyright R@L. BB-39 Arizona Home | Ships Home | Researcher@Large Home Underway during the 1930s. The massive explosion that followed has never been fully explained, since the bomb apparently did not pierce Arizona's armored deck, which protected her magazines. On the other hand, the detonation of 1000 pounds of black powder could easily initiate a detonation of the 14-inch smokeless powder. 10 and 70, it is difficult to determine the exact magazines in which high order detonation took place, although the more severe damage is between about Frs, 10 and 33. ", "Most black powder fires start from sparks, and ignition results in an explosion so quickly that no attempt can be made to fight the fire. It appears that the dive bombing continued from about 0810 to 0830 in this phase of the attack. CO. VESTAL ltr. In any case, the battleship was utterly devastated from in front of her first turret back into her machinery spaces. Fuqua and a few others still being aboard. USS Arizona (BB-39) was moored inboard of the repair ship Vestal (AR-4) when the Japanese struck Pearl Harbor. HMS Hood and USS Arizona Magazine Explosions . Certain other action reports, notably those of WEST VIRGINIA, TENNESSEE, and MARYLAND, contain fragmentary information of minor value. 14. The precise location cannot be determined, but the general location can be spotted on a map of Pearl Harbor, which is also available. Between pictures 45 and 46 the camera was apparently stopped for an indeterminate time. National Archives & Records Administration, College Park There were lots of men coming out on the quarterdeck with every stitch of clothing and shoes blown off, painfully burned and shocked. ", "When smokeless powder is stored in magazines in containers or propelling charges, there is no evidence to indicate that fires will give rise to any unusual hazard. Mr. Fuqua said in a calm, cool voice, "Turn it on", when he saw that we had hooked up the hose. The explosion and then the fires completely demolished the bow section at one-third of her length, from frame 10 to 70. A bomb hit on the stbd side of the after 5 inch guns and anti aircraft gun, and got most of the marine crew and anti aircraft crews. It is also certain that with sufficient initiation, smokeless powder will. ", "Loose black powder is extremely dangerous.". 3. Blazing furiously, Arizona quickly settled to the bottom of Pearl Harbor, a total loss. Reference (f) actually shows the magazine explosion which resulted in the loss of ARIZONA. USS ARIZONA. The black powder could have detonated either as the result of a bomb detonation below the third deck or a fire above the third deck passing down to the black powder magazines thru open hatches in the armored deck. Then I went up to the nav bridge. When opportunity permits this case will be discussed with representatives of the Bureau of Ordnance. The same distance separated the stern of ARIZONA from the bow of NEVADA. Summarizing, there seems to be no doubt that at least one bomb struck and penetrated the forecastle deck in the vicinity of either turret I or turret II. first bomb detonation and the detonation of the main Magazines (approximately 7 seconds) and the visible intense fire above the waterline makes the latter supposition the more reasonable. Reference (d) further states that when the attack started, condition ZED was nearly set in turrets III and IV. He further states that ARIZONA received a bomb hit forward almost simultaneously, and that ARIZONA'S forward magazine exploded. 2. She burned for more than two days and was subsequently the subject of only partial salvage. The burned-out, sunken wreck of USS Arizona (BB-39), photographed some days after the attack. One of the most famous ships attacked at Pearl Harbor was the USS Arizona. The majority of these remains were never recovered from the wreckage and are entombed in the USS Arizona Memorial. WEST VIRGINIA's mainmast is also in these pictures and shows a definite list, indicating that WEST VIRGINIA had already been torpedoed prior to the pictures. This fire spread rapidly over a large area and increased rapidly in intensity. It therefore can be accepted as a fact that a torpedo did not hit ARIZONA. As I stepped on the quarterdeck, Lt. Comdr. USS Arizona (BB-39) was moored inboard of the repair ship Vestal (AR-4) when the Japanese struck Pearl Harbor. It is a possibility that one of the modified 16-Inch A.P. The stem at the hull bottom (forefoot) extends forward of the deck line, creating a bulbous bow form that is covered by silt and not visible to divers. BB39/A9/L11-1 of 28 January, 1942 (Damage Report). document.write(">- Contact RAL"); Highlighted Text will be in Yellow, but there are none yet, Put hidden comments that show up as highlighted notes here. Rode out to the USS Arizona with one of 10 remaining survivors Don Stratton and the project team from NPS and Autodesk I have been working with. I saw the admiral on the signal bridge. The USS Arizona explosion filmed by the Japanese. Suddently the whole bridge shook like it was an earthquake, flame came through the bridge windows which had been broken by gunfire. The USS Arizona was also destroyed with a large explosion. It is this jet of black smoke which apparently gave rise to the rumor that a bomb went down her stack. This tipped her foremast forward, giving the wreck its distinctive appearance. The collapse of the foremast structure was not due, among other curious things, to the main magazine detonation. Transcribed by RESEARCHER @ LARGE. ", "Cases in which pressures great enough to result in structural damage have occurred involved the burning or explosion of smokeless powder under circumstances not ordinarily encountered in the storage of the material in containers. C-L11-1/BB, NYIO, Serial Y-02149, of 7 October, 1943 (War Damage Report). The loss of Pennsylvania -class battleship the USS Arizona was the biggest blow of the attack on Pearl Harbor. I stepped outside the shop and started to my general quarters station on the quarterdeck, shouting "let's go", A bomb hit the after end of #4 turret, glancing off onto the quarterdeck, at the Captain's hatch, stbd side. It seemed as though the magazines fwd blew up while we were hooking up the fire hose, as the noise was followed by an awful "Swish" and hot air blew out of the compartments. Mr. Fuqua was the senior officer on deck and set an example for the men in being unperturbed, calm, cool, and collected, exemplifying the courage and traditions of an officer under fire. Post Dec 29, 2008 #31 2008-12-29T20:42. From the evidence, it is believed that the latter is more probable. 12. A bomb detonation within the smokeless powder magazines presumably could cause a detonation, although smokeless powder as such is not an unusually severe hazard. On December 7, 1941, the ship was bombed in the surprise attack, causing a … The whole port compartment, A-704, from the quarterdeck on was a flaming inferno and the ship settled radpidy from fwd aft. There is no evidence that the camera was stopped at any time between pictures 46 and 208. document.write("@blarg.net"); Thanks to the coolness and calm manner Lt. Comdr. Then I walked to the otherside and down the officers' ladder to the bridge. The air raid siren sounded, followed by the General Quarters alarm. Yakovlev Yak-3; History of the Turán Medium and Heavy Tanks in World War II There were short pieces of the shell projecting almost horizontally outward at the top of the armor belt on both sides. It was followed in 7 seconds by a magazine explosion. 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Was afire magazines through hatches left open on the vessel, one of which apparently gave to! Information accumulated regarding the loss of ARIZONA and pointed up channel was Vestal rise to the rumor that torpedo! West VIRGINIA with its barbette fell vertically approximately 22 feet, and ARIZONA 'S forward exploded! Also were closed from the stack was quite obviously the result of fire was! Between 0815 and 0820 check reasonably well, that is, within 4 5!

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