Cora

Cora was a French experimental rocket. It was the largest rocket ever launched in Western Europe. It was primarily used for testing the second (Coralie) and third stages (Astris) of the multinational Europa Rocket, which was developed and produced by the European Launcher Development Organisation, the predecessor to the present day European Space Agency. For the Cora 1 only the French Coralie first stage was active. For the Cora 2 version the second German Astris stage was active. The Italian made Europa nose fairing was also tested. Configuration The entire rocket had a length of 11.5 metres, a diameter of 2.01 m and a takeoff weight of 16.5 tonnes. Total thrust was 220.00 kN, with the rocket capable of reaching an apogee of 55 km. The Coralie first stage was 5.5 metres long and had a diameter of 2 metres; when fully fuelled, it weighed 9.85 tonnes; the propellant was a mixture of nitrogen tetroxide and unsymmetrical dimethylhydrazine (UDMH). It was powered by a four-nozzle engine that produced 220 KN of thrust and had a specific impulse (in vacuum) of 280 seconds. A cylindrical black ring supporting four fins was attached to the rocket's base.