USS Missouri Battleship Facts (BB-63)
The USS Missouri (BB-63) was the third ship of the United States Navy to be named in honor of the state of Missouri. Also nick-named the “Mighty Mo” or “Big Mo,” she also has the distinction of being the last battleship constructed by the United States. More famously, the battleship was the location of the surrender of the Empire of Japan on September 2nd, 1945 (V-J Day) signifying the end of World War 2.
USS Missouri’s Wartime Service
The United States Navy initially placed the order for the Missouri in 1940 and saw her get commissioned in June of 1944.
During World War 2, the ship would see action in the Battles of Iwo Jima and Okinawa and also take part in shelling the Japanese home islands. The ship would see additional war time service during the Korean War and after being decommissioned in 1955 would be brought back to service in 1984. Mighty Mo would then provide NSFS (naval surface fire support) during Operation Desert Storm during January and February of 1991.
During her total service in the United States Navy, the Missouri would earn a total of 11 battle stars and be decommissioned again on March 31st, 1992. She would remain on the Naval Vessel Register until being struck on January 1995. In 1998 the ship was donated to the USS Missouri Memorial Association and serves as a museum ship in Pearl Harbor, Hawaii to this day.
USS Missouri Ship Information
Name: USS Missouri
Ordered: 12 June 1940
Builder: Brooklyn Navy Yard
Laid down: 6 January 1941
Launched: 29 January 1944
Commissioned: 11 June 1944
Decommissioned: 31 March 1992 (final decommissioning)
Struck: 12 January 1995
Nickname: “Mighty Mo” or “Big Mo”
Honors and awards: 11 battle stars
Fate: Museum ship
USS Missouri Ship Characteristics
Class & type: Iowa-class battleship
Displacement: 45,000 tons
Length: 887.2 ft (270.4 m)
Beam: 108.2 ft (33.0 m)
Draft: 28.9 ft (8.8 m)
Speed: 33 knots (38 mph; 61 km/h)
Complement: 2,700 officers and men
Armament: 9 × 16 in (406 mm)/50 cal Mark 7 guns
20 × 5 in (127 mm)/38 cal Mark 12 guns
80 × 40 mm/56 cal anti-aircraft guns
49 × 20 mm/70 cal anti-aircraft cannons
Armor: Belt: 12.1 in (310 mm)
Bulkheads: 11.3 in (290 mm)
Barbettes: 11.6 to 17.3 in (290 to 440 mm)
Turrets: 19.7 in (500 mm)
Decks: 7.5 in (190 mm)
General characteristics (1984 Modernization of the ship)
Complement: 1,851 officers and men
Sensors and processing systems: AN/SPS-49 Air Search Radar
AN/SPS-67 Surface Search Radar
AN/SPQ-9 Surface Search / Gun Fire Control Radar
Electronic warfare & decoys: AN/SLQ-32
AN/SLQ-25 Nixie Decoy System
8 × Mark 36 SRBOC Super Rapid Bloom Rocket Launchers
Armament: 9 × 16 in (406 mm)/50 cal Mark 7 guns
12 × 5 in (127 mm)/38 cal Mark 12 guns
32 × BGM-109 Tomahawk cruise missiles
16 × RGM-84 Harpoon Anti-Ship missiles
4 × 20 mm/76 cal Phalanx CIWS
Japanese WW2 Surrender Video (On-board Battleship Missouri)
Building the USS Missouri
The Missouri was the final Iowa Class fast battle ship designed to be commissioned by the United States Navy. The ship was planned in 1938 by the Preliminary Design Branch at the Bureau of Construction and Repair. The ship’s keel was laid at the Brooklyn Navy Yard on January 6th, 1941 and she would be launched on January 29th, 1944. The Missouri was then commissioned on June 11th, 1944 with Captain William Callaghan, USN in command. She was the third ship of the class, but
the final Iowa Class battleship (fourth in total) to be commissioned by the U.S. Navy (the Wisconsin, BB-64, was commissioned prior to the Missouri). Ms. Mary Margaret Truman, daughter of then Missouri Senator Harry S. Truman, would christen the ship at her launch.
The primary gun battery of the Missouri consisted of nine 16 inch guns that were capable of firing 2,700 lb (1,200 kg) armor piercing shells in excess of 20 miles (32.2 kilometers). The secondary battery of the ship included 20 x five inch guns that were located in twin turrets. The five inch guns had ranges of approximately 10 miles (16 kilometers). With the increased use of air power during WW2 and an increased need to protect the U.S. Navy’s fleet of aircraft carriers, the Missouri was outfitted with a number of Oerlikon 20 mm and Bofors 40 mm anti-aircraft guns to help defend against enemy airstrikes.
When the Mighty Mo was brought back to service in the 1980s, these guns were removed and the ship had the Phalanx CIWS installed for point defense against enemy missiles as well as Tomahawk Armored Box Launchers for offensive strike via TLAM.
Although BB-65 through BB-71 were ordered, the United States Navy would cancel their delivery due to the ending of WW2.
USS Missouri Service in World War 2
Once the Missouri was commissioned, she would conduct trials off of New York City. She would then undertake shakedown and battle practice in the Chesapeake Bay. Missouri left Norfolk, Virginia on November 11th, 1944 and transited the Panama Canal on November 18th, 1944 to be fitted out as the fleet flagship in San Francisco. Missouri would leave San Francisco on December 14th, 1944 and arrive in Pearl Harbor on December 24th, 1944. The ship would leave Hawaii on January 2nd, 1945 and arrive in
Ulithi, West Caroline Islands on January 13th, 1945. At this point, the ship would service as the temporary HQ for Vice Admiral Marc A. Mitscher.
On January 27th, 1945, the Missouri would sail as part of the Lexington carrier task group that was part of TF-58. On February 16th, 1945 the Task Force would launch the first air strikes against the Japanese mainland since the Jimmy Doolittle raid that took place in April of 1942.
After taking part in shelling mainland Japan, the Missouri would provide naval gunfire support at Iwo Jima during the USMC
landings. Once TF-58 was ordered to return to Ulithi on March 5th, the Missouri would join the Yorktown Carrier Task Group and take part in strikes against Japanese coastal targets starting on March 18th, 1945.
Battle of Okinawa
After conducting numerous strikes against Japanese airfields and naval bases near the Inland Sea and southwestern Honshū, the Missouri would re-locate to take part in the pre-invasion strikes on Okinawa. Along with the other fast battleships of TF-58, Missouri would take part in bombarding the southeastern coast on Okinawa on March 24th, 1945. When the USMC and US Army commenced the invasion of Okinawa on April 1st, the Missouri would rejoin the carrier screen. On April 11th, the Mighty Mo would be hit by a Japanese kamikaze on the starboard side just below the main deck. The crash would result in a gasoline fire at Gun Mount No. 3 which was quickly brought under control. The dent from the crash remains in the side of the ship to this day. On April 17th, the Missouri would detect an enemy submarine approximately 12 nautical miles from the formation. The force would send four destroyers and the Bataan to prosecute the contact that resulted in the sinking of I-56 (Japanese submarine).
Missouri would detach from the Okinawa Task Force on May 5th after shooting down five enemy airplanes, aiding in shooting down six others, repelling 12 daylight attacks, and four night-time attacks by the Japanese during the battle. The ship is credited with destroying numerous gun emplacements and military / governmental buildings during the bombardment.
Embarking Admiral Bull Halsey
The Missouri would pull in to Ulithi on May 9th, 1945 and then proceed on to Apra Harbor, Guam on May 18th, 1945. She would then embark the Commander of the U.S. Third Fleet, Admiral William F. Halsey, Jr. Missouri departed Guam on May 21st, 1945 and went back to the firing line off of Okinawa soon after. She would help lead the fleet in strikes against Japanese installations and airfields on Kyūshū on 2–3 June.
After riding out severe weather for two days, the Missouri would continue striking Kyūshū on June 8th before departing for Leyte. The ship arrived at San Pedro Leyte on June 13th, 1945 after three continuous months of support for the Battle of Okinawa.
Shore Bombardment in Japan
The Missouri and other 3rd Fleet ships took part in attacks against the Japanese main island, Honshū, on July 10th. These attacks were a surprise to the Japanese at the time. The Missouri would then move to strike at the junction of both Honshū and Hokkaidō on July 13-14, 1945. The first time during the war that a ship would destroy a major installation in the Japanese islands was courtesy of the Mighty Mo on July 15th, 1945 when she severely damaged the Nihon Steel Co. and the Wanishi Ironworks at Muroran, Hokkaido.
Over the course of the evening of July 17th and 18th, the Missouri would continue to strike industrial targets in Honshū. The U.S. carriers would continue to conduct aerial strikes against Japanese inland targets through July 25th. By the end of July, the United States Navy would gain sea control over the majority of Japanese inland waters.
Signing of the Japanese Instrument of Surrender
The USS Missouri was the location of the signing of the Japanese Instrument of Surrender on September 2nd, 1945. The ship would enter Tokyo Bay on August 29th, 1945 after transferring a landing party of 200 officers and sailors to the USS Iowa for duty ashore in Tokyo. Onboard the battleship was General of the Army Douglas MacArthur and numerous other Allied sailors and officers. The date of signing of the surrender is known as V-J Day and continues to be celebrated to this day.
Other high ranking officials onboard the battleship Missouri for the signing of the Japanese surrender included: Chinese General Hsu Yung-Ch’ang, British Admiral-of-the-Fleet Sir Bruce Fraser, Soviet Lieutenant-General Kuzma Nikolaevich Derevyanko, Australian General Sir Thomas Blamey, Canadian Colonel Lawrence Moore Cosgrave, French Général d’Armée Philippe Leclerc de Hautecloque, Dutch Vice Admiral Conrad Emil Lambert Helfrich, and New Zealand Air Vice Marshal Leonard M. Isitt.
Fleet Admiral Chester Nimitz would also be present with General MacArthur for the signing of the Japanese surrender. At the beginning of the ceremony, General MacArthur would famously state,
“It is my earnest hope—indeed the hope of all mankind—that from this solemn occasion a better world shall emerge out of the blood and carnage of the past, a world founded upon faith and understanding, a world dedicated to the dignity of man and the fulfillment of his most cherished wish for freedom, tolerance, and justice.”
On-board the Missouri, the 31 star American flag taken ashore by Commodore Matthew Perry, U.S. Navy in 1853 in Tokyo Bay to open the port to foreign trade was displayed. The flag on display was really shown with the reverse side showing due to the fabric being so fragile that there was a protective linen backing sewn onto it to prevent further deterioration.
By that afternoon, Admiral Halsey would transfer to the battleship South Dakota, and the Missouri would depart Tokyo Bay. Taking part in Operation Magic Carpet, she would embark homeward bound passengers and sail for Pearl Harbor arriving on
September 20th, 1945.
USS Missouri References
Battleship Missouri Memorial museum website, last accessed April 20th, 2013.
HNSA Ship Page: USS Missouri, last accessed April 20th, 2013.
Navsource Online Battleship Photo Archive, last accessed April 20th, 2013.
USS Missouri History, last accessed April 20th, 2013.
USS Missouri (BB-63) Association, last accessed April 20th, 2013.
U.S. Naval Heritage Photo Gallery of the USS Missouri battleship, last accessed April 20th, 2013.
U.S. Naval Vessel Register, USS Missouri (BB 63), last accessed April 20th, 2013.