Mohr's 5000 kgf rocket
Credit: Via Harald Lutz
Status: Retired 1959. Payload: 5.00 kg (11.00 lb). Thrust: 76.00 kN (17,085 lbf). Gross mass: 150 kg (330 lb). Height: 2.95 m (9.67 ft). Diameter: 0.30 m (0.98 ft). Apogee: 50 km (31 mi).
Payload: 5.00 kg (11.00 lb) to a 50 km altitude.
Mohr's Rocket, launch of 15 September 1958
Credit: Via Harald Lutz
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.
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.
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.