I Danmark finns det ett raketprogram med några mycket seriösa killar. (tidigare har de byggt en u-båt) De skall skicka upp den med en frivillig är planen.
http://www.copenhagensuborbitals.com/
Video/motortest
http://www.youtube.com/watch?v=FwuwX...feature=fvwrel
Misslyckad uppskjutning förra sommaren.
http://www.youtube.com/watch?v=OpH8t...eature=related
Bild på raketen med en testdocka
http://www.copenhagensuborbitals.com/tychobrahe.php
Lite samlat material
http://www.youtube.com/watch?v=fuaEW...eature=related
BASIC DATA
Mass: 300 kg (including astronaut)
Lenght: 3.5 meters
Diameter: 64 cm
Internal atmosphere: 1 bar, atmospheric gas
Pressurized volume: 650 liters
Unpressurized volume: 200 liters
Parachutes: 4 (1 drogue & 3 main)
Parachute data: cross type, 145 sqm total
Heatshield: 15 mm cork
Communication: 2 downlink 1 uplink
Tracking: 10.5 GHz transponder antenna
Power profile: 12/24V DC
GNC profile: IMU system
Coding protocol: RS422
Addition info: aerospike for optimal aerodynamic profile when flying supersonic. Personal parachute for panic egress. Reduntant timer/sequencer system for parachute deployment and separation.
Bränsle:
Nitrous oxide is not ideal for use in the large rocket needed for the launch of the manned spacecraft. It must be stored at very high pressure, and has a low density. The HATV shows the effect of this - with just 70 kg of useful propellant the rockets itself weighs empty 130 kg. This is all the steal in the big nitrous tank that causes that.
Exchanging nitrous oxide with liquid oxygen is needed to get the delta V required to reach suborbital space.
Liquid oxygen is far more complex to work with than nitrous oxide - but it can be used at any desired pressure because it is chilled down to - 183 C. Most important it is, unlike nitrous oxide, not an explosive.
