Encyclopedia Astronautica
16 in gun


US Navy gun for launch of rocket-boosted projectile. 1,470,981 kN. Development ended 1966. The proposed Martlet gun-launched small satellite launcher used a converted 16 inch naval gun to propell the rocket sabot. Isp=43s.

Thrust (sl): 1,470,975.000 kN (330,688,335 lbf). Thrust (sl): 150,000,000 kgf.

Status: Development ended 1966.
Thrust: 1,470,981.00 kN (330,689,683 lbf).
Specific impulse: 43 s.
Specific impulse sea level: 43 s.
Burn time: 1.00 s.

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Associated Countries
See also
  • Gun-launched Artillery dominated military ballistics from the earliest use of gunpowder. In 1865 Jules Verne could only realistically consider a cannon for a moon launch in his influential novel. Even after the rocket established its primacy as a method of accessing space, Canadian Gerald Bull began a life-long struggle to use guns for cheap access to space. His successes could not generate funding to continue. Others since then have pursued the technology, convinced it was the only way for low-cost delivery of payloads to orbit. More...

Associated Launch Vehicles
  • Martlet 4 Canadian gun-launched orbital launch vehicle. The Martlet 4 was ultimate goal of the HARP program - a gun-launched orbital launch vehicle. Two versions were considered: a preliminary version with two solid propellant upper stages, and a later model with two liquid propellant upper stages. Payload of the liquid propellant version would have reached 90 kg. The initial version was in an advanced stage of suborbital flight test when the HARP program was cancelled in 1967. More...

Associated Manufacturers and Agencies
  • USN American agency overseeing development of rockets, spacecraft, and rocket engines. USN Joint Task Force 7, USA. More...

Associated Propellants
  • Guncotton Propellant for gun used in gun-launched rockets such as Martlet. Propellant for gun used in gun-launched rockets such as Martlet. More...

Associated Stages
  • HARP Gun Guncotton propellant rocket stage. Loaded/empty mass 450/1 kg. Thrust 127,000.00 kN. Vacuum specific impulse 365 seconds. The HARP gun, a converted 16 inch naval gun, was used during the 1960's to launch the Martlet series of rocket-launched space probes. More...

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