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Two early types of liquid-fuel, rocket motors.

Two early types of liquid-fuel, rocket motors. Left, the original ARS motor; right, a four-nozzle motor for ARS No. 4 rocket.jpg The Screw of ArchimedesThumbnailsTycho Brahe's House and ObservatoryThe Screw of ArchimedesThumbnailsTycho Brahe's House and ObservatoryThe Screw of ArchimedesThumbnailsTycho Brahe's House and ObservatoryThe Screw of ArchimedesThumbnailsTycho Brahe's House and ObservatoryThe Screw of ArchimedesThumbnailsTycho Brahe's House and Observatory

Two early types of liquid-fuel, rocket motors. Left, the original ARS motor; right, a four-nozzle motor for ARS No. 4 rocket.

Thrust stud for fastening to rocket
Blast chamber
Fuel feed
Oxygen feed
Nozzle
Water jacket
Nozzles
Thrust and fuel column attached to rocket
Fuel feed