Saturn 1B/120-5 seg - Saturn 1B with 120 inch 5 segment strapon Credit: © Mark Wade. 4,715 bytes. 135 x 698 pixels.

Chrysler Studies, 1966: S-IB with 8 Minuteman motors as strap-ons, with no, 10, or 20-foot stretch S-IB stages, S-IVB stage. S-IB ignition at sea level at same time as strap-ons.

LEO Payload: 26,000 kg. to: 169 km Orbit. at: 28.0 degrees. Liftoff Thrust: 1,272,380 kgf. Total Mass: 824,100 kg. Core Diameter: 6.6 m. Total Length: 54.0 m.

• Stage Number: 0. 8 x Minuteman-1 Gross Mass: 23,077 kg. Empty Mass: 2,292 kg. Thrust (vac): 80,700 kgf. Isp: 262 sec. Burn time: 60 sec. Isp(sl): 237 sec. Diameter: 1.7 m. Span: 1.7 m. Length: 7.5 m. Propellants: Solid No Engines: 1. M55/TX-55/Tu-122

• Stage Number: 1. 1 x Saturn IB-15 Gross Mass: 478,103 kg. Empty Mass: 45,873 kg. Thrust (vac): 840,426 kgf. Isp: 296 sec. Burn time: 144 sec. Isp(sl): 262 sec. Diameter: 6.5 m. Span: 6.5 m. Length: 27.4 m. Propellants: Lox/Kerosene No Engines: 8. H-1b

• Stage Number: 2. 1 x Saturn IVB (S-IB) Gross Mass: 118,800 kg. Empty Mass: 12,900 kg. Thrust (vac): 105,200 kgf. Isp: 421 sec. Burn time: 475 sec. Isp(sl): 200 sec. Diameter: 6.6 m. Span: 6.6 m. Length: 17.8 m. Propellants: Lox/LH2 No Engines: 1. J-2

• 228 - Lowther, Scott, Saturn: Development, Details, Derivatives and Descendants, Work in progress. Availabe chapters may be ordered directly from Scott Lowther at web site indicated. HTML when accessed: http://www.webcreations.com/ptm
• 232 - Tharratt, C E, Spaceflight, "Improving the Uprated Saturn 1", 1967, page 207.
• 234 - Normyle, William J, Aviation Week and Space Technology, "Changing Concepts Key to Desing of Future Saturn Family", 1966-03-27, page 106.