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Intercontinental ballistic missile LGM-30F Minuteman-II

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    Basing

    :

    Mine PU

    management system:

    management software

    Warhead:

    spetsboepripasov

    Application:

    Strategic

    Country:

    U.S.

    Range:

    11000 km.

    year development:

    1965

    intercontinental ballistic missile lgm-30f minuteman-ii Create a new ballistic missile, originally bore the designation of HSM-80F, started in March 1962, when the U.S. Air Force signed with the corporation" Boeing "contract to develop promising missiles, a further development of ICBMs "Minuteman-IB". Subcontractors contract is firm: "Thiokol" - development of the first stage of the march; "Aerojet General" - development of the second stage of the march; "Hercules" - development of the third stage of the march; "Hercules" and "Atlantic Research" - auxiliary solid propellant; "Autonetics" - the development of the control system and the onboard computer on electronic components development and production of "Texas Instruments"; AVCO - warhead development; "Tracor" - to develop a set decoys. Warhead traditionally designed, tested and manufactured in laboratories and factories by the Atomic Energy Commission (Atomic Energy Commission).

    Requirements for new ICBMs, later received the designation LGM-30F and the name "Minuteman-II" were detailed in October 1963., when the Air Force General Headquarters issued Appendix A to the Common Operational Requirements 171 (GOR 171) from August 1958. Some of the requirements include: improved governance, increased range and throw weight, increased resistance to PFYAV complex. However, in June 1963. Strategic Air Command (SAC), the Air Force issued a special operational requirement SOR (Specific Operational Requirement) on missile command system ERCS (Emergency Rocket Communications System) based ICBMs "Minuteman" instead of missiles MER-6A "Blue Scout Junior", deployed in three position areas in Nebraska. In November 1963, Minister of Defense Robert McNamara approved a program called "Minuteman Force Modernization Program" (MFMP), in which it was planned to completely replace all ICBMs "Minuteman-IA / B" more perfect "Minuteman-II". In the same month, was approved and the decision to establish a command-based ICBM missiles "Minuteman-II".

    In February 1964

    . The Ministry of Defence signed a contract for the construction of facilities sixth position area (Grand Forks Air Force Base, North Dakota), designed to accommodate the first 150 ICBMs "Minuteman-II". Silos (silos) and command post (CP) of the GMD, develop as a weapon WS-133B, had to surpass the resistance PFYAV all previously built complexes (WS-133A Block 0 and Block 1). On the basis of the sixth position area unfolded 321 th Strategic Missile Wing. In January 1966. the first link of the 10 new ICBMs launched to alert duty on new technology. In April 1966. Nao formed the 564 th Strategic Missile Squadron 341 th Strategic Missile Wing (Malmstrom Air Force Base, Montana), which was the twentieth of the account and the last squadron, armed ICBMs "Minuteman-II". In May of the same year launched a program MFMP Whiteman Air Force Base (Missouri), where 150 ICBMs "Minuteman-IB" 351st Strategic Missile Wing was planned as soon as possible to replace the LGM-30F. However, after installation of new missiles in silos revealed failures onboard control system. Stream such failures grew considerably and the only repair facility at Hill Air Force Base (Utah) could not cope with the volume of work. Had for this purpose to connect the power of the manufacturer firm "Autonetics", which immediately affected the rate of production of new missiles. The situation is further complicated by the beginning of the program modernization of ICBMs "Minuteman-IB". The reason for this phenomenon, which caused a delay in the deployment of the entire grouping LGM-30F, was the lack of reliability management system, founded during the development of tactical and technical requirements. With the flood of requests for repairs only managed to cope by October 1967.

    In January 1967

    . 321 th Strategic Missile Wing at full strength to intercede on alert. In December 1966. from Vandenberg Air Force Base was first performed test launch of an ICBM "Minuteman-II" missile command in gear. The launch was considered successful. The final third missile test launch command was held in April 1967.

    In April 1967

    . In October 1967

    . Whiteman Air Force Base, began the process of partial replacement warhead ICBMs staff LGM-30F on the set command missiles ERCS. Typically, the number of missiles in a deployed configuration does not exceed the 10-pieces. In February 1969. after completion of the extraction process of the mines Malmstrom Air Force Base and the 150th ICBM "Minuteman-IA" were immediately started work on upgrading the silos and manual for later use ICBM "Minuteman-II". Rearmament program was successfully completed in May of the same year. Thus, by June 1969. already in service consisted of 500 ICBMs "Minuteman-II": 200 ICBMs at Malmstrom Air Force Base and 150 ICBMs at Whiteman Air Force bases and Grand Forks. In addition, in three areas of positional (Ellsworth Air Force Base, Minot, and FE Warren) was deployed 500 ICBMs "Minuteman-IB".

    intercontinental ballistic missile lgm-30f minuteman-ii

    Achieving such a numerical ratio (together with recent successful testing of ICBMs "Minuteman-III" MIRV) was not unreasonably priced as a success, which is why it was decided to reduce the rate of implementation of the program Minuteman Force Modernization Program (MFMP) and change its essence. Now planned to replace the rest of the rocket "Minuteman-IB" (and some missiles "Minuteman-II") newest ICBM "Minuteman-III", which allowed without changing the total number of deployed ICBMs significantly increase the power of the national components of the strategic nuclear forces at a relatively moderate cost . It was also decided to abandon consideration since 1968. year program "Hard Rock Silo Program" (build silos in hard rock). Instead, in 1970. within the overall program MFMP was decided to upgrade the existing silos and manual (additional code "Silo Upgrade" / "Hardness Modification"). Within these routines planned to equip all silos advanced electronic equipment with increased resistance to PFYAV, new damping system and modify the roof of the mine. Thickness of the roof increased by 25cm and weigh down on the 20t with a special heavy concrete with high boron content. Introduced a special system of protection of electrical equipment against electromagnetic pulse of a nuclear explosion by a relay samoblokirovok, electronic filters and surge spark arrester. Was modified for filtering. KP also planned to equip more resistant to PFYAV advanced electronic equipment and a special system of protection of electrical equipment from EMP nuclear explosion. Modified so as to ground-based WS-133A Block 0 and Block 1 received designation WS-133A-M Block 0 and Block 1, respectively (system WS-133B designation has not changed). Later, it was also decided to implement the subroutine "Command Data Buffer (CDB) / Improved Launch Control System" - to provide centralized remote retargeting standing in ICBM silos. In addition, new equipment was to reduce the likelihood nesanktsioniruemogo missile launch. These programs have been fully implemented by January 1980. all ICBM bases "Minuteman", apart from the base Ellsworth - on silos and manual this database for financial reasons, it was decided to abandon the modification duct cover, new depreciation system for ICBM system and CDB.

    In 1970

    . from the landfill at Vandenberg Air Force Base were conducted: the first combat training missile launch command "Minuteman-II" and the first two simultaneous launch ICBMs "Minuteman-II". In September, 1974. Air Force General Headquarters approved the program "Rivet Save Minuteman Modification Program", the aim of which was to reduce the number of combat crews ICBM "Minuteman" with 3 to 2 people while reducing duty objection period from 36 to 24 hours. In addition, the program establishes a new, more resistant to PFYAV equipment manual also reduces the risk of unauthorized launch rockets reduced by one member of the crew. The program was completed by April 1978. In January 1975. MFMP program was officially completed. In total, the program has been deployed 550 ICBMs "Minuteman-III" (Malmstrom Air Force Base, Minot, FE Warren, Grand Forks) and 450 ICBMs "Minuteman-II" (Malmstrom Air Force Base, Ellsworth, Whiteman). < / p>

    second half of the 70s was also marked by intense enough modernization process missile LGM-30F - the latest issue of "Minuteman-III" was discontinued in 1977., and the latest entry into service delayed MX ICBM and it became clear that the MDBs LGM -30F will stand still long enough arms. In 1976. program began to study the impact of vibration on the missile control system. In 1979. was performed intensive modernization program second sustainer stage ICBM "Minuteman-II" - install new solid fuel, increased stability of individual nodes to PFYAV. In 1981. was announced program ARSIP (Accuracy, Reliability, Supportability Improvement Program) to improve the accuracy, reliability and maintainability of ICBMs "Minuteman-II". As part of this program in 1982. was performed three special test launch ICBM. ARSIP program was completed in July 1987.

    In November 1984. 4-demonstrator supporter of nuclear disarmament penetrated to the roof of one of the silos Whiteman Air Force Base, causing damage to the launch complex for the amount $ 25,000. In March next year, all were sentenced to terms ranging from 8 to 18 years in prison. In April 1985. program was launched Rivet MILE (Minuteman Integrated Life Extension), the purpose of which was to improve the silos and manual system "Minuteman". In 1987. at all launch sites in the program Rivet MILE began installing the improved system for physical security IMPSS (Improved Minuteman Physical Security System). In 1989. began a gradual replacement of machines, conveyors stages of ICBMs, machinery installers ICBM silos, equipment validation codes in the manual administration, emergency battery, etc. Work on the program Rivet MILE completed by 1992 .. In the second half of the 80s all controls have been modified to ensure incurring duty crew of women or of mixed composition. Measures have been taken to reduce noise in the manual - American data, previously the average noise level in the CP reached 70 dB (90 dB at maximum mode), which is certainly tired crews. Program to reduce the noise level allowed by the installation of a special coating inside the gearbox and change algorithms for individual operations several alleviate this problem.

    By 1990

    . contractual process between the USSR and the United States to reduce nuclear arsenals took intense. As the "first victim" category in the U.S. ICBM was decided to "put" 450 ICBMs LGM-30F because of all deployed U.S. ICBMs they had the lowest combat effectiveness and were the oldest (in addition to 450 ICBMs "Minuteman-II" in three areas of positional as of September 1990. further 24 ICBMs this type were considered in the repair Hill Air Force Base (Utah) and 18 ICBMs were based storage Air Oasis (Utah) - all 492 ICBMs). This point of view, the Americans managed to defend the negotiations on the reduction of offensive weapons, which culminated in the signing in July 1991. Moscow START-1 treaty. It should be noted that in this Americans, no doubt, helped the political and economic difficulties in the Soviet Union, due to disintegration of the country which has already begun to take the time irreversible. In September 1991, President Bush ordered to withdraw from permanent alerting all ICBMs "Minuteman-II".

    Last

    rocket "Minuteman-II" of the number of deployed based on Ellsworth has been removed from the mine in April 1994., and in July 44th Missile Wing deployed at this base was disbanded. In May 1995. was removed from the mine last rocket LGM-30F based on Whiteman and 351st Missile Wing was disbanded in July of the same year. Silos and KP these missile wings after the removal of all necessary equipment cited inoperable - silos with further undermined backfilling sand and gravel, and KP poured concrete. An exception was made for one manual and one silo-based Ellsworth (mine worth learning IDB) and a manual based on Whiteman - they have been turned into museums.

    silos and KP 341 th Missile Wing (AFB Malmstrom) suffered another fate - after removing the missiles "Minuteman-II" they modified the program Rivet ADD to further use for the ICBM "Minuteman-III". Just between 1992 and 94gg. IDB was established 30 "Minuteman-III", bringing thus the total number of such ICBMs in four positional areas up to 530 pieces. In March 1995. it was announced that the missing to the full set of 120 missiles will be transferred to the base from Malmstrom base Grand Forks, and the 321st Missile Group (including the 91 th and 321 th missile wings) would be disbanded. Last ICBM LGM-30F was removed from the silo in August 1995 (Malmstrom Air Force Base), then this type of ICBM was officially withdrawn from service.

    At various times

    ICBM LGM-30F was actively used for experiments. In particular, in July 1966, the IDB "Minuteman-II" was used to test the new BB Mk12, designed for ICBM "Minuteman-III". After decommissioning LGM-30F was actively used in the program launches IFT (Integrated Flight Tests) for testing elements created U.S. national missile defense. Initially, the main contractor is a corporation "Lockheed Martin". Rocket used (representing the second and third stage boosters LGM-30F, the control system and payload) was the designation "Minuteman-II" MSLS (Multi-Service Launch System) and has been used 8 times in the period from September 1996. to July 2001. Payload is the stage of breeding, research and BB decoys different shapes, weights and sizes (up to 8). In addition, in May 2000 under this program was used and the second based on a conversion RN "Minuteman-II", received the name "Minotaur-II". Prime contractor - the company "Orbital Sciences". By December 2002. held 5 starts. Payload is the stage of breeding, research and BB decoys different shapes, weights and sizes.

    Composition

    intercontinental ballistic missile lgm-30f minuteman-ii The first stage of the missile LGM-30F consists of a solid propellant sustainer Thiokol M55 and the tail section. The motor housing of the first stage was made of heat-treated forged steel sheets. Used special steel grade D6AC. Skirt missiles, adapters and control section had a steel frame and aluminum trim. Shell is the first stage of the rocket "Minuteman-II" consisted of two sections, obtained by successive rolling of sheet steel billets. This technique reduces the cost of steel, reduced engine weight and increased strength due to lack of welds. The whole block missiles sputtering method was applied thermal barrier coating Avcoat, composed of the epoxy resin and polyamide hardener. At the bottom were installed four divergent nozzle, providing thrust vector control when working on solid propellant boost phase. Composite propellant charge (the brand TP-H1011 / TP-H1043) is secured to the housing.

    second stage (see photo) was the main engine of Aerojet General SR19-AJ-1 and connection compartment. Housing RDTT made from a titanium alloy 6AL-4V. Application of fuel ANB-3066 based on polybutadiene possible to obtain a higher specific impulse. Since the rocket engine had only one fixed nozzle, developers had to use new ways to create control efforts during his tenure. Thrust vector control on flight phase of the second stage in pitch and yaw was carried out by injection of liquid refrigerant in the supercritical part of the nozzle through four groups of holes arranged in planes stabilization rocket. For roll control used freestanding gas generator system with four fixed control nozzles attached to the nozzle block. Solid propellant second stage had bonded with the body solid propellant charge mass 6300 kg, which is approximately 30% greater than that of the main engine of the second stage "Minuteman-IB".

    third stage (see photo) included RDTT Hercules M57 (type of solid fuel - CYH & DDP), transition, and coupling sections. Third stage motor had a body made of fiberglass S-901 with a high specific heat resistance. The inner surface of the housing had a heat shielding layer is made of rubber. The nozzle is similar to the first stage unit. To reduce the structural weight immediately after the third stage propulsion system has been reset the tail section of the stage. In case SRBs had four holes covered with caps (nozzles protivotyagi). They opened for the team management system that allows you to vary the firing range and provide braking stage in the process of separating warhead (BB). In special compartments placed third stage elements of the complex means breakthrough ABM Mk1A (PCB ABM). IRT PRO Mk1A included nine containers chaff, the third step in the march as heavy decoy and modified BB with low ESR. C to ensure a reliable third stage of withdrawal from the Department of the BB and the future direction for use as a heavy decoy third stage was equipped with auxiliary low-power solid-fuel engines: the disposal of solid propellant Hercules SR11-HP-1, SRBs pitch Atlantic Research SR59-AR-1 and roll Atlantic Research SR61-AR-1.

    intercontinental ballistic missile lgm-30f minuteman-ii

    combat unit staffed warhead W56-4, which had a high power (2 Mt), resistance to PFYAV and reliability compared to the same series predecessors. MDBs LGM-30F used two kinds of BB - Mk11B and Mk11C. Last applying since 1967, increased resistance to different PFYAV somewhat reduced ability to use EPR and (with minor changes) as a conventional warhead and missile warhead command. BB speed when entering the Earth's atmosphere about 6800 m / s. The total flight time was about 34 minutes. Payload mass missiles "Minuteman-II" is 900 kg.

    The rocket

    LGM-30F installed inertial control system NS17, which was first in the world equipped with ODCC D-37C. Element base management system NS17 was made entirely on the basis of so-called. solid-state electronics. During alerting all gyros gyro-stabilized platform sensitive elements were in the untwisted state, allowing the missile to maintain a high readiness for launch. Released during this excess heat removed thermostatic system. The control system provides significantly greater accuracy compared to its predecessor, and the possibility of rapid retargeting (to the mainstream position areas). Retargeting missiles before the program was carried out CDB waitstaff - steer the missile to the desired angle. For most areas of positional rocket LGM-30F was used remote control that allows you to produce a corresponding rotation of the platform with the launch without the participation of people. Being on the alert management system used for routine inspections and other tasks use. The rocket could be carried by one of the eight flight tasks selected from a permanent storage device immediately before the start SU.

    Rockets "Minuteman-II" were placed in silos (silos OS) in a 30-second launch readiness. Start carried out directly from the mine after the ramp-up of the first stage solid propellant. Removing silos of a station ranged from 8 to 24km. Each post had a telephone and teletype (mezhpozitsionnuyu communication system through high resistance HICS - Hardened Intersite Cable System, and apply for a missile launch), low frequency, high frequency, ultrahigh-frequency (satellite) and other communication with the headquarters of the U.S. Air Force and the CAA, moreover, has been linked with other posts squadron that made it possible to launch rockets Squadron any two posts. To launch the missiles were required the concerted action of four operators of the two posts. For the posts of WS-133B (prime contractor communication system "Sylvania"; for WS-133A - "Boeing") has been provided, in addition to HICS, transmission system commands on the silo in the middle range (for reviews of the crews, the system was extremely sensitive interference). HICS system for posts WS-133B has been simplified.

    intercontinental ballistic missile lgm-30f minuteman-ii

    Martial position had power from the local power plants, and for emergency cases were provided diesel generators at each mine (to 75kW) and control station (100-150kW), is automatically enabled. In the years 1965-1978

    standard ICBM combat crew KP "Minuteman-II" consisted of three people:

    MCCC - Missile Combat Crew Commander - командирбоевогоракетногоэкипажа;

    AMCCC - Alternate Missile Combat Crew Commander - запасныйкомандирбоевогоракетногоэкипажа;

    DMCCC - Deputy Missile Combat Crew Commander - помощниккомандирабоевогоракетногоэкипажа.

    Since 1979, the crew consisted of only two people - MCCC and DMCCC.

    missiles were delivered to the military positions in shipping containers made of aluminum alloy (cover and stringers of magnetic alloy) coated on the inside of the foam insulation, which were applied two layers of polyester resin, and between them laying fiberglass. In a container maintained at 18-36 ° C (at ambient temperatures from -34 to +46 ° C) and relative humidity not more than 57%. The container is mounted on conveyor-lift, consisting of five-axle tractor and trailer triaxial (see photo). A tractor in front of a hydraulic actuator, whereby when mounted in a missile silo container rises to a vertical position (see photo). Missiles could also be transported by planes from the 133B.

    PERFORMANCE

    firing range, km

    11000-11500

    Number

    rocket stages

    3

    Missile length

    17,6

    maximum body diameter, m

    1,68

    Starting weight, kg

    33700

    circular deviation km

    0.37-0.63

    first stage:
    - Length, m
    - Diameter, m
    - Curb weight steps kg
    - Engine
    - Thrust, kgf
    - Fuel Weight, kg
    - The number of nozzles


    7,29
    1,68
    23210
    single-chamber solid propellant Thiokol M55
    90780
    20690
    4

    Second stage:
    - Length, m
    - Diameter, m
    - Curb weight steps kg
    - Engine
    - Thrust, kgf
    - Fuel Weight, kg
    - The number of nozzles


    4,22
    1,3
    7280
    odnokamernyyRDTT Aerojet General SR19-AJ-1
    27500
    6200
    1

    Third stage:
    - Length, m
    - Diameter, m
    - Curb weight steps kg
    - Engine
    - Thrust, kgf
    - Fuel Weight, kg
    - The number of nozzles


    2,08
    0,95
    2010
    single-chamber solid propellant Hercules M57
    7750
    1660
    4





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