The Mod 0 was a variable yield device with three yields, ranging from 100 tons of TNT (420 GJ) up to 1.1 kt (4.6 TJ) and an enhanced-radiation mode which could be turned on or off
The Mod 1 was fission-only with a fixed 0.8 kt (3.3 TJ) yield, corresponding with the maximum fission only yield of the Mod 0
24 kilometres (15 mi) or 30 kilometres (19 mi) with rocket assist[1]
Blast yield
0.1 to 1.1 kilotonnes of TNT (0.42 to 4.60 TJ) (Mod 0), 0.8 kilotonnes of TNT (3.3 TJ) (Mod 1)
Both models were 8 in (203 mm) in diameter, 44 in (1,100 mm) long and weighed 200 lb (91 kg). The W79 was developed by Lawrence Livermore National Laboratory, starting in 1975. Production of the different mods took place from July 1981 through August 1986. A total of 550 warheads (325 Mod 0s, 225 Mod 1s) were produced.[6] All units were retired from active service by the end of 1992 with the last shell dismantled at the Pantex Plant in Texas in August 2002.[7]
The weapon had a range of 24 kilometres (15 mi) or 30 kilometres (19 mi) with rocket assist.[1]
The weapon utilized the M735 proximity fuze. It contained a dual-channel fuze system, target sensor, electronic programmer and power supply.[8] Its design goals were to minimize overall weight, minimize structural volume, eliminate the use of potting materials for structural support, and to eliminate cable and wire harnesses.[9] The goal of not using potting materials was ultimately not met.[10]
The fuze was developed with an extensive test firing program and in service use would have experienced a 10,400 g0 (102,000 m/s2) setback acceleration and 11,400 revolutions per minute (190 Hz) spin.[11] Some test units experienced setbacks of 15,300 g0 (150,000 m/s2).[12]
Gallery
W79 AFAP on display.
W79 AFAP on display (right).
Diagram of the M735 fuze.
W79 (XM753) nuclear artillery projectile in its storage container
^ abSandia Weapon Review: Nuclear Weapon Characteristics Handbook (PDF) (Report). Sandia National Labs. September 1990. p. 75. SAND90-1238. (PDF) from the original on 2022-01-12.
^"W79 Artillery-Fired Atomic Projectile (AFAP)". from the original on 2021-02-01. Retrieved 2021-01-28.
^Henry E Hudgins (January 1977). Aerodynamics, Dimensions, Inertial Properties and Performance of Artillery Projectiles (PDF) (Report). Picatinny Arsenal. p. 4. (PDF) from the original on 2021-12-19. Retrieved 2021-12-24.
^Thomas B Cochran; William M Arkin; Milton M Hoenig (1984). Nuclear Weapons Databook, Volume I: US Nuclear Forces and Capabilities (PDF) (Report). Natural Resources Defense Council. p. 77. (PDF) from the original on 2021-09-01. Retrieved 2021-12-24.
^Hansen, Chuck (2007). The Swords of Armageddon, version 2. Chukelea Publications. pp. VI-521, VI-522.
^Workers Dismantle Final U.S. Nuclear Artillery Shell
^Miller, John M.; Boring, Steven A. (1979-05-01). Structural Firing Tests of the M735 Proximity Fuze (Report). HARRY DIAMOND LABS ADELPHI MD. p. 6. from the original on 2021-12-24. Retrieved 2021-12-24.
Allbombs.html list of all US nuclear weapon models at nuclearweaponarchive.org
Linear Implosion in the Nuclear Weapons FAQ at nuclearweaponarchive.org
August 24, 2023
artillery, fired, atomic, projectile, afap, also, known, xm753, atomic, american, nuclear, artillery, shell, capable, being, fired, from, nato, howitzer, m115, m110, howitzer, produced, models, enhanced, radiation, fission, only, both, were, plutonium, based, . The W79 Artillery Fired Atomic Projectile AFAP 2 also known as the XM753 Atomic RA 3 4 was an American nuclear artillery shell capable of being fired from any NATO 8 in 203 mm howitzer e g the M115 and M110 howitzer 5 Produced in two models the enhanced radiation W79 Mod 0 and fission only W79 Mod 1 Both were plutonium based linear implosion nuclear weapons The Mod 0 was a variable yield device with three yields ranging from 100 tons of TNT 420 GJ up to 1 1 kt 4 6 TJ and an enhanced radiation mode which could be turned on or off The Mod 1 was fission only with a fixed 0 8 kt 3 3 TJ yield corresponding with the maximum fission only yield of the Mod 0W79An inert M754 training version of the warheadTypeNuclear artilleryPlace of originUnited StatesService historyIn service1981 to 1992Used byUnited States ArmyProduction historyDesignerLawrence Livermore National LaboratoryDesigned1975 to 1981SpecificationsMass200 pounds 91 kg Length44 inches 1 100 mm Diameter8 inches 203 mm Maximum firing range24 kilometres 15 mi or 30 kilometres 19 mi with rocket assist 1 Blast yield0 1 to 1 1 kilotonnes of TNT 0 42 to 4 60 TJ Mod 0 0 8 kilotonnes of TNT 3 3 TJ Mod 1 Both models were 8 in 203 mm in diameter 44 in 1 100 mm long and weighed 200 lb 91 kg The W79 was developed by Lawrence Livermore National Laboratory starting in 1975 Production of the different mods took place from July 1981 through August 1986 A total of 550 warheads 325 Mod 0s 225 Mod 1s were produced 6 All units were retired from active service by the end of 1992 with the last shell dismantled at the Pantex Plant in Texas in August 2002 7 Contents 1 Design 2 Gallery 3 See also 4 References 5 External linksDesign EditThe weapon had a range of 24 kilometres 15 mi or 30 kilometres 19 mi with rocket assist 1 The weapon utilized the M735 proximity fuze It contained a dual channel fuze system target sensor electronic programmer and power supply 8 Its design goals were to minimize overall weight minimize structural volume eliminate the use of potting materials for structural support and to eliminate cable and wire harnesses 9 The goal of not using potting materials was ultimately not met 10 The fuze was developed with an extensive test firing program and in service use would have experienced a 10 400 g0 102 000 m s2 setback acceleration and 11 400 revolutions per minute 190 Hz spin 11 Some test units experienced setbacks of 15 300 g0 150 000 m s2 12 Gallery Edit W79 AFAP on display W79 AFAP on display right Diagram of the M735 fuze W79 XM753 nuclear artillery projectile in its storage containerSee also EditNeutron bomb Nuclear weapon design List of nuclear weaponsReferences Edit a b Sandia Weapon Review Nuclear Weapon Characteristics Handbook PDF Report Sandia National Labs September 1990 p 75 SAND90 1238 Archived PDF from the original on 2022 01 12 W79 Artillery Fired Atomic Projectile AFAP Archived from the original on 2021 02 01 Retrieved 2021 01 28 Henry E Hudgins January 1977 Aerodynamics Dimensions Inertial Properties and Performance of Artillery Projectiles PDF Report Picatinny Arsenal p 4 Archived PDF from the original on 2021 12 19 Retrieved 2021 12 24 Thomas B Cochran William M Arkin Milton M Hoenig 1984 Nuclear Weapons Databook Volume I US Nuclear Forces and Capabilities PDF Report Natural Resources Defense Council p 77 Archived PDF from the original on 2021 09 01 Retrieved 2021 12 24 LLNL achievements in the 1970s Hansen Chuck 2007 The Swords of Armageddon version 2 Chukelea Publications pp VI 521 VI 522 Workers Dismantle Final U S Nuclear Artillery Shell Miller John M Boring Steven A 1979 05 01 Structural Firing Tests of the M735 Proximity Fuze Report HARRY DIAMOND LABS ADELPHI MD p 6 Archived from the original on 2021 12 24 Retrieved 2021 12 24 Structural Firing Tests of the M735 Proximity Fuze p 8 Structural Firing Tests of the M735 Proximity Fuze p 37 Structural Firing Tests of the M735 Proximity Fuze p 5 Structural Firing Tests of the M735 Proximity Fuze p 25 External links EditAllbombs html list of all US nuclear weapon models at nuclearweaponarchive org Linear Implosion in the Nuclear Weapons FAQ at nuclearweaponarchive org Retrieved from https en wikipedia org w index php title W79 Artillery Fired Atomic Projectile amp oldid 1161976325, wikipedia, wiki, book, books, library,
