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Saturn INT-19
Part of Saturn V Family
Saturn 2SL Minuteman
Saturn 2SL Minuteman
Saturn 2SL Minuteman strapons
Credit: © Mark Wade
North American study, 1966. Saturn variant with 4 to 12 Minuteman motors as boosters, Saturn II stage as core, and Saturn IVB upper stage. Saturn II stage would be fitted with lower expansion ratio engines and would ignite at sea level. Various combinations of numbers of strap-ons, propellant loading of the two core stages were studied.

Status: Study 1966. Payload: 34,320 kg (75,660 lb). Thrust: 9,061.41 kN (2,037,086 lbf). Gross mass: 770,000 kg (1,690,000 lb). Height: 51.00 m (167.00 ft). Diameter: 10.06 m (33.00 ft). Apogee: 185 km (114 mi).

Liftoff Mass - kgMM Motors at LiftoffMM Motors 2nd RoundMM Motors 3rd RoundS-II Propellant - kgS-IVB Propellant - kgPayload - kg
328,300---188,20077,1005,500
463,50022-217,70080,30013,200
579,60042-277,60076,60020,100
579,60044-236,70073,00018,100
722,90062-367,80076,60027,200
722,90064-318,40078,00026,800
734,200642294,80081,20023,100
722,90066-273,90078,90025,400
866,70084-410,90080,70028,800
866,70084-410,90075,70033,700
866,70084-410,90075,20034,200

LEO Payload: 34,320 kg (75,660 lb) to a 185 km orbit at 28.00 degrees.

Stage Data - Saturn INT-19

  • Stage 0. 12 x Minuteman-1. Gross Mass: 23,077 kg (50,876 lb). Empty Mass: 2,292 kg (5,052 lb). Thrust (vac): 791.300 kN (177,891 lbf). Isp: 262 sec. Burn time: 60 sec. Isp(sl): 237 sec. Diameter: 1.67 m (5.47 ft). Span: 1.67 m (5.47 ft). Length: 7.49 m (24.57 ft). Propellants: Solid. No Engines: 1. Engine: M55/TX-55/Tu-122. Status: Out of Production. Comments: First stage of Minuteman I. Proposed as zero stage for various Saturn variants in 1960's. Surplus motors used in ABM SDI tests in 1980's and 1990's.
  • Stage 1. 1 x Saturn II-SL. Gross Mass: 490,952 kg (1,082,363 lb). Empty Mass: 44,240 kg (97,530 lb). Thrust (vac): 5,500.765 kN (1,236,621 lbf). Isp: 390 sec. Burn time: 310 sec. Isp(sl): 275 sec. Diameter: 10.06 m (33.00 ft). Span: 10.06 m (33.00 ft). Length: 24.84 m (81.49 ft). Propellants: Lox/LH2. No Engines: 5. Engine: J-2-SL. Status: Study 1966. Comments: Saturn II modified with reduced expansion ratio J-2 engines for use a first stage (sea level launch). Requires solid rocket motor augmentation to get off the ground.
  • Stage 2. 1 x Saturn IVB (S-IB). Gross Mass: 118,800 kg (261,900 lb). Empty Mass: 12,900 kg (28,400 lb). Thrust (vac): 1,031.600 kN (231,913 lbf). Isp: 421 sec. Burn time: 475 sec. Isp(sl): 200 sec. Diameter: 6.61 m (21.68 ft). Span: 6.61 m (21.68 ft). Length: 17.80 m (58.30 ft). Propellants: Lox/LH2. No Engines: 1. Engine: J-2. Status: Out of Production. Comments: Saturn IB version of S-IVB stage. Due to lower payload, 300 kg saving in structure compared to Saturn V version. Due to deletion of restart requirement, 700 kg saving in propulsion system (primarily reduction in helium for restart).



Family: orbital launch vehicle. People: von Braun. Country: USA. Engines: J-2-SL. Stages: Saturn II-SL, Saturn IVB (S-IB), M55/TX-55/Tu-122.
Photo Gallery

Saturn 2 w MM SOSaturn 2 w MM SO
Credit: © Mark Wade



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