Encyclopedia Astronautica
Martlet 4i-2


Solid propellant rocket stage. Loaded/empty mass 183/35 kg. Thrust 20.50 kN. Vacuum specific impulse 300 seconds.

Status: Study.
Gross mass: 183 kg (403 lb).
Unfuelled mass: 35 kg (77 lb).
Height: 2.00 m (6.50 ft).
Diameter: 0.30 m (0.98 ft).
Span: 0.30 m (0.98 ft).
Thrust: 20.50 kN (4,609 lbf).
Specific impulse: 300 s.
Burn time: 21 s.

More... - Chronology...


Associated Countries
Associated Engines
  • Martlet 4-2 Bull solid rocket engine. 20.6 kN. Development ended 1966. Isp=300s. Used on Martlet 4 launch vehicle. 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...

Home - Browse - Contact
© / Conditions for Use