| 词条 | M117 bomb |
| 释义 |
|name= M117 | image= M117 bomb.jpg | image_size = 300 |caption= |origin= United States |type= free-fall general-purpose bomb |is_ranged= |is_bladed= |is_explosive=yes |is_artillery= |is_vehicle= |is_missile=yes |is_UK= |service= 1950s–2015 |used_by=United States |wars= Korean War , Vietnam War |designer= |design_date= |manufacturer= |unit_cost= |production_date= |number= |variants= M117R, M117D |spec_label= |weight= 340 kg |length= 2.06 m-2.16 m |part_length= |width= |height= |diameter= 408 mm |crew= |cartridge= |caliber= |barrels= |action= |rate= |velocity= |range= |max_range= Varies by method of employment |feed= |sights= |breech= |recoil= |carriage= |elevation= |traverse= |blade_type= |hilt_type= |sheath_type= |head_type= |haft_type= |filling=Tritonal |filling_weight=183 Kg |detonation= |yield= |armour= |primary_armament= |secondary_armament= |engine= |engine_power= |pw_ratio= |transmission= |payload_capacity= |suspension= |clearance= |wingspan= 520 mm |propellant= |fuel_capacity= |vehicle_range= |ceiling= |altitude= |boost= |speed= |guidance= |steering= |accuracy= |launch_platform= |transport= }} The M117 is an air-dropped general-purpose bomb used by United States military forces. The weapon dates back to the Korean War of the early 1950s. Although it has a nominal weight of {{convert|750|lb|0}} its actual weight, depending on fuze and retardation options, is around {{convert|820|lb|0}}. The bomb's explosive content is typically {{convert|403|lb|0}} of Minol 2 or Tritonal. The M117 can also be configured with a low-drag tail fin for medium and high-altitude deliveries.[1] HistoryFrom the 1950s through the early 1970s the M117 was a standard aircraft weapon, carried by the F-100 Super Sabre, F-104 Starfighter, F-105 Thunderchief, B-57 Canberra, F-111, F-5, A-1 Skyraider, A-4 Skyhawk and F-4 Phantom. The M117 series was used extensively during the Vietnam War, and B-52G Stratofortress aircraft dropped 44,600 M117 and M117R bombs during Operation Desert Storm.[1][2] The B-52 Stratofortress was the last aircraft to use the bomb; tactical aircraft had mostly switched to using the Mark 80-series bombs, particularly the Mark 82 ({{convert|500|lb|0}}) or Mark 84 ({{convert|2000|lb|0}}) bombs and their guided equivalents. On 26 June 2015, the last Mk 117 in PACAF inventory was dropped by a B-52H crew on an island near Andersen AFB, Guam.[3] Variants
The M117R (R - Retarded) uses a special fin assembly providing either high-drag or low-drag release options. For low altitude deliveries, the tail assembly opens four large drag plates which rapidly slow the bomb and allow the aircraft to escape its blast.[1]
The M117Rs that are fitted with tail units, are the MAU-103 low drag tail and the MAU-91 high drag tail, respectively.[4]
The M117D (D - Destructor) looks similar to the M117R but uses a magnetic influence fuze, which enables the bomb to function as a mine. The M117D is released in a high-drag configuration for ground implant or shallow water mining. It detonates when an object passing near the bomb triggers the fuze.[1]
The M117 was the basis of the MC-1 chemical warfare bomb, which had the body cavity filled with sarin nerve gas. The MC-1 was never used by the U.S. in combat and was eliminated from the U.S. stockpile in June, 2006.[5] References1. ^1 2 3 USAF Museum: M117 Bomb {{webarchive|url=https://web.archive.org/web/20101225231012/http://www.nationalmuseum.af.mil/factsheets/factsheet.asp?id=1031 |date=2010-12-25 }} 2. ^{{cite book|title=Janes Air Launched Weapons Issue 36|isbn=0-7106-0866-7}} 3. ^http://www.af.mil/News/ArticleDisplay/tabid/223/Article/607252/blast-from-the-past-last-m117-bomb-dropped-near-guam-coast.aspx 4. ^Janes.com: MAU-10 Low Drag Bomb 5. ^{{cite web |url=http://csepp.net/pressreleases/06Releases/06Jun12_MC1bombs3000EONCPR.pdf |title=Depot and Disposal Facility reach significant milestones |accessdate=2007-09-22 |date=June 12, 2006 |format=PDF |deadurl=yes |archiveurl=https://web.archive.org/web/20081120043953/http://www.csepp.net/pressreleases/06Releases/06Jun12_MC1bombs3000EONCPR.pdf |archivedate=November 20, 2008 |df= }}
External links
2 : Cold War aerial bombs of the United States|Aerial bombs of the United States |
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