Encyclopedia Astronautica
Doorknob 1-1


Solid propellant rocket stage. Loaded mass 300 kg. Thrust 168.00 kN.

Status: Retired 1959.
Gross mass: 300 kg (660 lb).
Height: 2.10 m (6.80 ft).
Diameter: 0.40 m (1.31 ft).
Thrust: 168.00 kN (37,767 lbf).
Burn time: 2.60 s.
Number: 35 .

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Associated Countries
Associated Engines
Associated Launch Vehicles
  • Doorknob 2 American test vehicle. Two stage vehicle consisting of 1 x Lacrosse + 1 x Lacrosse More...

Associated Manufacturers and Agencies
  • Thiokol American manufacturer of rocket engines and rockets. Thiokol Corporation, Ogden, UT, USA. 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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