Encyclopedia Astronautica
Mohr Rocket



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Mohr Rocket
Mohr's 5000 kgf rocket
Credit: Via Harald Lutz
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Mohr Rocket
Mohr's Rocket, launch of 15 September 1958
Credit: Via Harald Lutz
Engineer Ernst Mohr of Wuppertal, under the auspices of the German Rocket Society, developed a sounding rocket that was designed to reach altitudes of 50 km. A solid rocket motor with 7800 kgf would take the separable payload section to a speed of 1200 m/s. The booster had a diameter of 0.30 m, a length of 1.7 m, a total mass of 135 kg including 75 kg of solid propellant. The payload dart was 56 mm in diameter, 1.25 m long, and had a total mass of 15 kg.

Payload: 5.00 kg (11.00 lb) to a 50 km altitude.

Status: Retired 1959.
Gross mass: 150 kg (330 lb).
Payload: 5.00 kg (11.00 lb).
Height: 2.95 m (9.67 ft).
Diameter: 0.30 m (0.98 ft).
Thrust: 76.00 kN (17,085 lbf).
Apogee: 50 km (31 mi).

More... - Chronology...


Associated Countries
See also
  • German Civilian Rocketry A German rocket craze seized the country from 1928 to 1933, inspiring a generation of young engineers and scientists that manned spaceflight could be a reality in their lifetime. The Nazi government put an end to this civilian effort, instead putting the engineers to work developing military rockets. After the war, an attempt was made to revive German civilian rocketry, but safety fears resulted in all further work being shut down in 1964. More...

Associated Manufacturers and Agencies
  • Mohr German manufacturer of rockets. Mohr, Germany. More...

Bibliography
  • "Wolf, Sonja", Cuxhaven - Im Zeitalter der Raketen, Unpublished manuscript, Cuxhaven City Archives, August 1986. Provided by Harald Lutz..
  • Contemporary newspaper articles, 1952-1964, Collected and provided by Harald Lutz.

Mohr Rocket Chronology


1957 August 24 - . Launch Site: Cuxhaven. Launch Vehicle: Mohr Rocket.
  • First launches from Spaceport Cuxhaven - . Nation: Germany. Cuxhaven saw its first use as the 'Gateway to Space'. The DRG (German Rocket Society)'s 'Rocket Flight Day' started out with 7 firings of the 'oilspray' rocket to ranges of 100 to 300 m. The terrible weather served to demonstrate their function admirably. This was followed by a launch to 100 to 2000 m altitude of several small model rockets. This was followed by delta-winged rocket built by Koschmieder, which reached 3000 m and was recovered by parachute. Next was a prototype 20 kg meteorological rocket using a new solid propellant developed by Deutsche Dynamit AG. This produced 1500 kgf and reached Mach 1.5. The rocket rose to 4000 m but the recovery parachute deployed early and the meteorological instruments were not recovered. Finally a test of the first of Ernst Mohr's big rockets was planned. The rocket had 50 kg of propellant, produced 5 tonnes thrust, and was to have reached Mach 1.5 at burnout and an altitude of 20,000 m. However the launch was cancelled due to bad weather.

1958 June 8 - . Launch Site: Cuxhaven. Launch Vehicle: Mohr Rocket.
  • Mohr Rocket launch attempts - . Nation: Germany. First attempt to launch Ernst Morhr's larege meteorological rocket. The rocket had a total mass of 150 kg, consisting of 75 kg propellant, 60 kg structure, and 15 kg payload. The motor produced 7800 kgf for 2 seconds. The rocket was 30 cm in diameter, 1.7 m long, and had a payload dart 56 mm in diameter and 1.25 m long. Three attempts were made to launch. Two hung up on the launcher, and the third was unstable after launch and crashed near the launcher.

1958 September 14 - . Launch Site: Cuxhaven. Launch Vehicle: Mohr Rocket.
  • Mohr Rocket reaches 50 km altitude - . Nation: Germany. Three launches were made from Arensch, including two successful launches of the prototype of the large meteorological rocket developed by Ernst Mohr of Wuppertall. The launches were witnessed by Vice-President Ross. The redesigned Mohr rockets were 2.5 m long, 30 cm in diameter, had a total mass of 80 kg and produced 7.8 tonnes thrust. Cutoff velocity was 1200 m/s at 1200 m altitude. The payload dart then separated and coasted up to 50 km altitude. It was later planned to install meteorological instruments on these rockets.

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