Encyclopedia Astronautica
Aerobee 350-2

Nitric acid/Aniline propellant rocket stage. Loaded/empty mass 3,000/1,050 kg. Thrust 72.00 kN.

No Engines: 4.

AKA: Aerobee 350 St2.
Status: Retired 1984.
Gross mass: 3,000 kg (6,600 lb).
Unfuelled mass: 1,050 kg (2,310 lb).
Height: 9.10 m (29.80 ft).
Diameter: 0.56 m (1.83 ft).
Thrust: 72.00 kN (16,186 lbf).
Burn time: 53 s.
Number: 20 .

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Associated Countries
Associated Engines
  • AJ11-6 Aerojet Nitric acid/aniline rocket engine. 17.8 kN. Typical ideal dV=3839 m/s; gravity and drag losses = 1012 m/s. More...

Associated Launch Vehicles
  • Aerobee 350 American sounding rocket. In March 1957 an Aerojet engineer conceived of the 'ultimate Aerobee', with the body diameter increased to 46 cm diameter and powered by four engines. The design found no takers until it was pitched to NASA in 1961 and development was authorised. The final configuration selected used a Nike Ajax missile booster, 56 cm in diameter, followed by the Aerobee 350, equipped with 4 Aerobee 150A engines. The rocket could take 65 kg to 480 km altitude or 455 kg to 240 km altitude. More...

Associated Manufacturers and Agencies
  • Aerojet American manufacturer of rockets, spacecraft, and rocket engines. Aerojet, Sacramento, CA, USA. More...

Associated Propellants
  • Nitric acid/Amine Drawing on the German World War II Wasserfall rocket, nitric acid (HNO3) became the early storable oxidiser of choice for missiles and upper stages of the 1950's. To overcome various problems with its use, it was necessary to combine the nitric acid with N2O4 and passivation compounds. These formulae were considered extremely secret at the time. By the late 1950's it was apparent that N2O4 by itself was a better oxidiser. Therefore nitric acid was almost entirely replaced by pure N2O4 in storable liquid fuel rocket engines developed after 1960. Early storable rocket systems sought to improve ignition characteristics and perforamance by eliminating the kerosene portion of the fuel. An amine is an organic compound produced when one or more hydrogen atoms of ammonia is replaced with organic groups. Mixed amine fuels were first developed by the Germans in World War II. TONKA-250, developed for the Wasserfall rocket, was used by the Russians after the war in various engines under the specification TG-02. More...

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