Encyclopedia Astronautica
Nova DAC ISI


American heavy-lift orbital launch vehicle. Douglas/Bono design for Nova using LH2/Lox in both stages. Improved Specific Impulse chemical stage uses many engines feeding into single large nozzle.

LEO Payload: 454,500 kg (1,002,000 lb) to a 325 km orbit.

Stage Data - Nova DAC ISI

  • Stage 1. 1 x Nova DAC ISI-1. Gross Mass: 3,084,000 kg (6,799,000 lb). Empty Mass: 142,000 kg (313,000 lb). Thrust (vac): 70,146.000 kN (15,769,448 lbf). Isp: 350 sec. Burn time: 141 sec. Isp(sl): 320 sec. Diameter: 21.30 m (69.80 ft). Span: 28.00 m (91.00 ft). Length: 30.50 m (100.00 ft). Propellants: Lox/LH2. No Engines: 14. Engine: Chamber/single nozzle. Status: Study 1963. Comments: Operational date would have been July 1977. Recoverable stage. 10% plug nozzle.
  • Stage 2. 1 x Nova DAC ISI-2. Gross Mass: 1,696,000 kg (3,739,000 lb). Empty Mass: 107,000 kg (235,000 lb). Thrust (vac): 33,754.000 kN (7,588,201 lbf). Isp: 455 sec. Burn time: 206 sec. Diameter: 21.30 m (69.80 ft). Span: 21.30 m (69.80 ft). Length: 30.50 m (100.00 ft). Propellants: Lox/LH2. No Engines: 8. Engine: Chamber/single nozzle. Status: Study 1963. Comments: Operational date would have been July 1977. Recoverable stage.

Status: Study 1963.
Gross mass: 5,325,400 kg (11,740,400 lb).
Payload: 454,500 kg (1,002,000 lb).
Height: 73.00 m (239.00 ft).
Diameter: 21.30 m (69.80 ft).
Thrust: 64,134.40 kN (14,417,987 lbf).
Apogee: 325 km (201 mi).

More... - Chronology...


Associated Countries
Associated Engines
  • Chamber/single nozzle Notional lox/lh2 rocket engine. 13,231 kN. Study 1963. Isp=455s. Before moving to favored plug nozzle designs, Bono at Douglas considered having multiple combustion chambers exhaust into a single large nozzle to obtained Improved Specific Impulse. More...

See also
  • Nova Nova was NASA's ultimate launch vehicle, studied intently from 1959 to 1962. Originally conceived to allow a direct manned landing on the moon, in its final iteration it was to put a million-pound payload into low earth orbit to support manned Mars expeditions. It was abandoned in NASA advanced mission planning thereafter in favor of growth versions of the Saturn V. More...

Associated Manufacturers and Agencies
  • Douglas American manufacturer of rockets, spacecraft, and rocket engines. Boeing Huntington Beach, Huntington Beach, CA, USA. More...

Associated Stages
  • Nova DAC ISI-1 Lox/LH2 propellant rocket stage. Loaded/empty mass 3,084,000/142,000 kg. Thrust 70,146.00 kN. Vacuum specific impulse 350 seconds. Operational date would have been July 1977. Recoverable stage. 10% plug nozzle. More...
  • Nova DAC ISI-2 Lox/LH2 propellant rocket stage. Loaded/empty mass 1,696,000/107,000 kg. Thrust 33,754.00 kN. Vacuum specific impulse 455 seconds. Operational date would have been July 1977. Recoverable stage. More...

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