Encyclopedia Astronautica
EER Aries


American low cost orbital launch vehicle. Aries launched to promote a commercial launch vehicle of entirely different configuration.

LEO Payload: 890 kg (1,960 lb) to a 463 km orbit. Launch Price $: 18.000 million in 1994 dollars.

Status: Out of production.
Gross mass: 87,407 kg (192,699 lb).
Payload: 890 kg (1,960 lb).
Height: 15.24 m (49.99 ft).
Diameter: 1.24 m (4.06 ft).
Thrust: 1,704.70 kN (383,232 lbf).
Apogee: 463 km (287 mi).

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Associated Countries
See also
  • LCLV Various independently-funded launch vehicles have been advocated, designed, and even developed over the years. A lot of these are attempts to build low-cost launch vehicles using simpler technology. Often such projects begin based on a low cost liquid fuel technology but end up just trying to sell various combinations of Castor solid fuel stages. These enterprises often discover there's more to coming up with a reliable launch vehicle than slashing together a bunch of 'off the shelf' rocket motors and lighting the fuse.... On the other hand, if there is ever a breakthrough in less expensive access to space, it will come through one of these entrepreneurial schemes... More...

Associated Manufacturers and Agencies
  • EER American manufacturer of rockets and spacecraft. EER Systems Inc. , USA More...

Associated Stages
  • Castor 4A Solid propellant rocket stage. Loaded/empty mass 11,743/1,529 kg. Thrust 478.31 kN. Vacuum specific impulse 266 seconds. More...
  • Castor 4B Solid propellant rocket stage. Loaded/empty mass 11,400/1,400 kg. Thrust 430.61 kN. Vacuum specific impulse 281 seconds. Optimized for high altitude (Conestoga) More...
  • PAM-D Solid propellant rocket stage. Loaded/empty mass 2,141/232 kg. Thrust 67.16 kN. Vacuum specific impulse 292 seconds. More...

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