Encyclopedia Astronautica
VLM-4


Solid propellant rocket stage. Loaded/empty mass 377/57 kg. Thrust 20.49 kN. Vacuum specific impulse 275 seconds.

Propellant Formulation: HTPB.

AKA: Veiculo Lancador de Satelites.
Status: Development ended 1997.
Gross mass: 377 kg (831 lb).
Unfuelled mass: 57 kg (125 lb).
Height: 1.25 m (4.10 ft).
Diameter: 0.66 m (2.16 ft).
Span: 0.66 m (2.16 ft).
Thrust: 20.49 kN (4,606 lbf).
Specific impulse: 275 s.
Burn time: 43 s.

More... - Chronology...


Associated Countries
Associated Engines
  • S-30 IAE solid rocket engine. 20.490 kN. Development ended 1997. Isp=275s. More...

Associated Launch Vehicles
  • VLM Brazilian satellite launcher using core of VLS only. Planned for launch of microsatellites. First launch 2002 or later. More...

Associated Propellants
  • Solid Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. Solid propellants have the fuel and oxidiser embedded in a rubbery matrix. They were developed to a high degree of perfection in the United States in the 1950's and 1960's. In Russia, development was slower, due to a lack of technical leadership in the area and rail handling problems. More...

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