Encyclopedia Astronautica
Skylark 12-3


Solid propellant rocket stage. Loaded mass 200 kg.

AKA: Cuckoo 4.
Status: Retired 1990.
Gross mass: 200 kg (440 lb).
Height: 1.20 m (3.90 ft).
Diameter: 0.44 m (1.44 ft).
Burn time: 4.30 s.
Number: 15 .

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Associated Countries
Associated Engines
Associated Launch Vehicles
  • Skylark 12 British sounding rocket. Three stage Skylark version consisting of 1 x Goldfinch + 1 x Raven 11 + 1 x Cuckoo 4. The AC version uses an uprated Goldfinch II booster. The Raven XI is loaded with 990 kg of propellant and produced 2500 kN-sec total impulse over 39 seconds. The Cuckoo IV stage provides 452 kN-sec impulse over 15 seconds. More...

Associated Manufacturers and Agencies
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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