PGM-17 Thor - Specifications (PGM-17A)

Specifications (PGM-17A)

  • Family: Thor IRBM, Thor DM-18 (single stage LV); Thor DM-19 (rocket 1st stage), Thor DM-21 (rocket 1st stage), Thor DSV-2D,E,F,G (suborbital LV), Thor DSV-2J (anti-ballistic missile), Thor DSV-2U (orbital launch vehicle).
  • Overall length: 19.82 m (65.0 ft)
  • Span: 2.74 m (9.0 ft)
  • Weight: 49,800 kg (110,000 lb)
  • Empty weight: 3,125 kg (6,890 lb)
  • Thrust (vac): 760 kN
  • Liftoff Thrust (sl): 670 kN (150,000 lbf)
  • Isp: 282 s (2.77 kN·s/kg)
  • Isp(sl): 248 s (2.43 kN·s/kg)
  • Burn time: 165 s
  • Core Diameter: 2.44 m
  • Maximum range: 2,400 km (1,500 mi)
  • Ceiling: 480 km (300 mi)
Warhead
  • One W49. on Mk. 2. reentry vehicle
  • warhead mass: 1,000 kg (2,200 lb)
  • Yield: equivalent to 1,440 kilotons of TNT (6.02 PJ)
  • CEP: 1 km (0.62 mi)
  • Boost Propulsion: Liquid fuelled rocket, LOX and Kerosene.
  • Engines:
    • Rocketdyne LR79-NA-9 (Model S-3D); 666 kN (150000 lbf)
    • Vernier: 2x Rocketdyne LR101-NA; 4.5 kN (1000 lbf) each
    • Propellants: LOX/Kerosene (Thor kerosene propellant was referred to as 'RP1' by RAF users)
    • Thrust (vac): 760 kN
    • Isp: 282 s (2.77 kN·s/kg)
    • Isp (sea level): 248 s (2.43 kN·s/kg)
    • Burn time: 165 s
    • Mass Engine: 643 kg
    • Diameter: 2.44 m
    • Chambers: 1
    • Chamber Pressure: 4.1 MPa
    • Area Ratio: 8.00
    • Thrust to Weight Ratio: 120.32
    • Country: USA
    • First Flight: 1958
    • Last Flight: 1980
    • Flown: 145.
    • Comments: Designed for booster applications. Gas generator, pump-fed
  • Guidance: Inertial
  • Maximum speed: 17,740 km/h (11,020 mph)
  • Development Cost US dollars: $500 million
  • Recurring Price US dollars: $6.25 million
  • Total Number Built: 224
  • Total Development Built: 64
  • Total Production Built: 160
  • Flyaway Unit Cost: US$750,000 in 1958 dollars
  • Launches: 59
  • Failures: 14
  • Success Rate: 76.27%
  • First Launch Date: 25 January 1957
  • Last Launch Date: 5 November 1975

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