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USN OpHjp
Operation HIGHJUMP, officially titled The United States Navy Antarctic Developments Program, 1946–1947, (also called Task Force 68), was a United States Navy (USN) operation to establish the Antarctic research base Little America IV. The operation was organized by Rear Admiral Richard E. Byrd, Jr., USN (Ret), Officer in Charge, Task Force 68, and led by Rear Admiral Ethan Erik Larson, USN, Commanding Officer, Task Force 68. Operation HIGHJUMP commenced 26 August 1946 and ended in late February 1947. Task Force 68 included 4,700 men, 13 ships, and 33 aircraft. HIGHJUMP's objectives, according to the U.S. Navy report of the operation, were: # Training personnel and testing equipment in frigid conditions; # Consolidating and extending the United States' sovereignty over the largest practicable area of the Antarctic continent (publicly denied as a goal before the expedition ended); # Determining the feasibility of establishing, maintaining, and utilizing bases in the Antarctic an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Sennet (SS-408) In Antartica 1947
USS ''Sennet'' (SS-408) was a ''Balao''-class submarine, a ship of the United States Navy named for the sennet, a barracuda. ''Sennet'' was laid down on 8 March 1944 by the Portsmouth Navy Yard in Kittery, Maine, launched on 6 June 1944, sponsored by Mrs. Roscoe W. Downs, and commissioned on 22 August 1944. ''Sennet'' was fitted out by 18 September. She held training exercises and torpedo-tube testing off the coast of Connecticut and Rhode Island until 22 October. The submarine then tested mines and torpedoes for the Mine Warfare Test Station, Solomons Island, Md. On 11 November, ''Sennet'' proceeded to the operations area off Balboa, C. Z. and conducted further training exercises. The submarine departed Balboa on 29 November for Pearl Harbor and arrived there on 16 December 1944. ''Sennets topside armament was increased to two guns, two 40 millimeter guns, and three .50 caliber machine guns before departing Pearl Harbor for her first war patrol on 5 January 1945. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Henderson (DD-785)
USS ''Henderson'' (DD-785) was a of the United States Navy, the second Navy ship of that name, and the first named for United States Marine Corps Major Lofton R. Henderson. The previous ''Henderson'' was named for Marine Corps Commandant Archibald Henderson. ''Henderson'' was laid down by Todd Pacific Shipyards, Seattle, Washington, on 27 October 1944; launched on 28 May 1945; sponsored by Mrs. A. R. Early; and commissioned at Seattle on 4 August 1945. 1945–1964 ''Henderson'' conducted shakedown cruise out of San Diego, then departed Seattle on 31 October for Hawaii. Upon her arrival on 7 November she operated as a screen ship for escort carriers in Hawaiian waters and conducted experimental sonar tests with submarines before returning to Naval Station San Diego on 23 April 1946. After divisional exercises off California she departed on 2 December 1946 for "Operation Highjump", an Antarctic exploration and test program. This operation included tests of clothing and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eagle Scout
Eagle Scout is the highest achievement or rank attainable in the Scouts BSA program of the Boy Scouts of America (BSA). Since its inception in 1911, only four percent of Scouts have earned this rank after a lengthy review process. The Eagle Scout rank has been earned by over 2.5 million youth. Requirements include earning at least 21 merit badges. The Eagle Scout must demonstrate Scout Spirit, an ideal attitude based upon the Scout Oath and Law, service, and leadership. This includes an extensive service project that the Scout plans, organizes, leads, and manages. Eagle Scouts are presented with a medal and a badge that visibly recognizes the accomplishments of the Scout. Additional recognition can be earned through Eagle Palms, awarded for completing additional tenure, leadership, and merit badge requirements. Those who have earned the rank of Eagle Scout also become eligible, although are not required, to join the National Eagle Scout Association. History The Scouts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Siple
Paul Allman Siple (December 18, 1908 – November 25, 1968) was an American Antarctic explorer and geographer who took part in six Antarctic expeditions, including the two Byrd expeditions of 1928–1930 and 1933–1935, representing the Boy Scouts of America as an Eagle Scout. In addition to being an Eagle Scout, Siple was also a Sea Scout. His first and third books covered these adventures. With Charles F. Passel he developed the wind chill factor, and Siple coined the term. Biography Siple was born in Montpelier, Ohio on December 18, 1908, to Clyde Lavonius Siple and Fannie Hope Allman. His family moved to Erie, Pennsylvania, where he graduated from Central High School in 1926. He became an Eagle Scout in 1923 with 59 merit badges. After an extensive nationwide search in 1928, he was the first Eagle Scout selected for an Antarctic expedition, sailing with Richard E. Byrd on his ship the ''City of New York''. Siple appeared in the documentary film ''With Byrd at the South Pole' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Diving
Ice is water frozen into a solid state, typically forming at or below temperatures of 0 degrees Celsius or Depending on the presence of impurities such as particles of soil or bubbles of air, it can appear transparent or a more or less opaque bluish-white color. In the Solar System, ice is abundant and occurs naturally from as close to the Sun as Mercury to as far away as the Oort cloud objects. Beyond the Solar System, it occurs as interstellar ice. It is abundant on Earth's surfaceparticularly in the polar regions and above the snow lineand, as a common form of precipitation and deposition, plays a key role in Earth's water cycle and climate. It falls as snowflakes and hail or occurs as frost, icicles or ice spikes and aggregates from snow as glaciers and ice sheets. Ice exhibits at least eighteen phases ( packing geometries), depending on temperature and pressure. When water is cooled rapidly (quenching), up to three types of amorphous ice can form depending on its his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rebreather
A rebreather is a breathing apparatus that absorbs the carbon dioxide of a user's breathing, exhaled breath to permit the rebreathing (recycling) of the substantially unused oxygen content, and unused inert content when present, of each breath. Oxygen is added to replenish the amount metabolised by the user. This differs from open-circuit breathing apparatus, where the exhaled gas is discharged directly into the environment. The purpose is to extend the breathing endurance of a limited gas supply, and, for covert military use by frogmen or observation of underwater life, eliminating the bubbles produced by an open circuit system and in turn not scaring wildlife being filmed. A rebreather is generally understood to be a portable unit carried by the user. The same technology on a vehicle or non-mobile installation is more likely to be referred to as a life-support system. Rebreather technology may be used where breathing gas supply is limited, such as underwater or in space, where ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DESCO
DESCO is an underwater diving equipment maker which was first organized in 1937 in Milwaukee, Wisconsin as Diving Equipment and Salvage Co. It was founded by: * Max Eugene Nohl, a diver who lived in Milwaukee. In the early 1930s he had national publicity for his salvage operations on a sunken steamship, the '' John Dwight''. * John D. Craig, a Hollywood movie producer, a pioneer in underwater photography, who wanted to film the possible salvage of the . * Jack Browne, a diver. * Edgar End, a physician who worked in hyperbaric medicine. In 1935, Nohl, Craig and Browne designed a lightweight heliox diving suit to dive to the liner Lusitania, sunk in May 1915 by a German U-boat in 312 feet of water, 11 miles (18 km) off the southern coast of Ireland. On 1 December 1937 in Lake Michigan, Max Nohl dived to with DESCO equipment, breaking the previous record of set by British divers in 1930. In World War II DESCO made hardhat diving gear and oxygen rebreathers for the US Navy. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diving Mask
Diving most often refers to: * Diving (sport), the sport of jumping into deep water * Underwater diving, human activity underwater for recreational or occupational purposes Diving or Dive may also refer to: Sports * Dive (American football), a type of play in American football * Diving (association football), a simulation of being fouled * Diving (ice hockey), embellishing an infraction in an attempt to draw a penalty * Sport diving (sport), competitive scuba diving using recreational techniques in a swimming pool * Taking a dive, or match fixing, intentionally losing a match, especially in boxing Film and television Film * ''Dive'' (film), a 1929 German silent film * ''The Dive'' (1990 film), a Norwegian action thriller * ''Dive!'' (film), a 2010 documentary film by Jeremy Sefert * ''Dive'', a 2014 New Zealand short film written and directed by Matthew J. Saville * ''The Dive'' (2018 film), an Israeli film TV * ''Dive'' (TV series), a 2010 British drama * "The Dive" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chief Petty Officer
A chief petty officer (CPO) is a senior non-commissioned officer in many navies and coast guards. Canada "Chief petty officer" refers to two ranks in the Royal Canadian Navy. A chief petty officer 2nd class (CPO2) (''premier maître de deuxième classe'' or ''pm2'' in French) is equivalent to a master warrant officer in the Army and Air Force, and chief petty officer 1st class (CPO1) (''premier maître de première classe'' or ''pm1'') is equivalent to a chief warrant officer in the Army and Air Force. In spoken references, chief petty officers may be addressed as "chief" but are never addressed as "sir". Australia "Chief Petty Officer" is the second highest non-commissioned rank in the Royal Australian Navy. India A Chief Petty Officer in Indian Navy is a junior-commissioned officer, equivalent to the NATO rank enlisted grade of E-6 ( Staff Sergeant ) . This rank is equivalent to Naib Subedar in Indian Army and Junior Warrant Officer in Indian Air force. The two highest e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lieutenant Commander
Lieutenant commander (also hyphenated lieutenant-commander and abbreviated Lt Cdr, LtCdr. or LCDR) is a commissioned officer rank in many navies. The rank is superior to a lieutenant and subordinate to a commander. The corresponding rank in most armies and air forces is major, and in the Royal Air Force and other Commonwealth air forces is squadron leader. The NATO rank code is mostly OF-3. A lieutenant commander is a department officer or the executive officer ( second-in-command) on many warships and smaller shore installations, or the commanding officer of a smaller ship/installation. They are also department officers in naval aviation squadrons. Etymology Most Commonwealth and other navies address lieutenant commanders by their full rank or the positions they occupy ("captain" if in command of a vessel). The United States Navy, however, addresses officers by their full rank or the higher grade of the rank. For example, oral communications in formal and informal s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thurston Island
Thurston Island is an ice-covered, glacially dissected island, long, wide and in area, lying a short way off the northwest end of Ellsworth Land, Antarctica. It is the third-largest island of Antarctica, after Alexander Island and Berkner Island. The island was discovered from the air by Rear Admiral Byrd on February 27, 1940, who named it for W. Harris Thurston, a New York textile manufacturer, designer of the windproof "Byrd Cloth" and sponsor of Antarctic expeditions. Thurston Island is separated from the mainland by Peacock Sound, which is occupied by the western portion of Abbot Ice Shelf. It divides Bellingshausen Sea to the east from Amundsen Sea to the west. Originally mistaken as a peninsula, the feature was not recognised an island until 1960. Geography The western extremity of the island is Cape Flying Fish. The eastern extremity is Cape Annawan, off Tierney Peninsula. The southeast end of the island is Cape Walker. The island is divided south-north by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Martin PBM Mariner
The Martin PBM Mariner was an American Maritime patrol aircraft, patrol bomber flying boat of World War II and the early Cold War era. It was designed to complement the Consolidated PBY Catalina and Consolidated PB2Y Coronado, PB2Y Coronado in service. A total of 1,366 PBMs were built, with the first example flying on 18 February 1939 and the type entering service in September 1940, with the last of the type being retired in 1964. Design and development In 1937 the Glenn L. Martin Company designed a new twin-engined flying boat, the Model 162, to succeed its earlier Consolidated P2Y, Martin P3M and complement the Consolidated PBY Catalina, PBY Catalina and Consolidated PB2Y Coronado, PB2Y Coronado. It received an order for a single prototype XPBM-1 on 30 June 1937.Swanborough and Bowers 1976, p. 318. This was followed by an initial Mass production, production order for 21 PBM-1 aircraft on 28 December 1937.Green 1968, p. 177. To test the PBM's layout, Martin built a ⅜ scale f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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