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Zero Gravity Research Facility (Zero-G)
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Facility Fact

The free fall is conducted inside of a 467 foot (142 m) long steel vacuum chamber. Chamber pressure is reduced to 0.05 torr (760 torr = standard atmospheric pressure).


Drop vehicle over the vacuum chamber in the Zero Gravity Research Facility C2004-585:  An electronics technician makes adjustments to the experiment on the "H" drop vehicle
Facility Capabilities
Operational Parameters
  • Microgravity Duration: 5.18 seconds
  • Free Fall Distance: 432 feet (132 m)
  • Gravitational Acceleration: <0.00001 g, best gravity levels
    of any of NASA’s grounds based microgravity facilities
  • Mean Deceleration: 35 g
  • Peak Deceleration: 65 g
  • Vacuum Level: 0.05 torr

Experimental Drop Vehicle

  • Diameter: 42 in. (1 m)
  • Total height: 13 ft. (4.0 m)
  • Gross vehicle weight: 2500 lbs. (1130 kg)
  • Payload diameter: up to 38 in. (.97 m)
  • Payload height: up to 66 in. (1.6 m)
  • Payload weight: up to 1000 lbs (455 kg)
  • 7 available drop vehicles

Instrumentation/Data Acquisition

  • Video Cameras, Digital Frame Grabbers, Hi-8, Mini-DV and DVCAM recorders
  • Analog-Digital Data Acquisition, 32 channels
  • 24 VDC Battery Power
  • Programmable Logic Controller
  • Pressure Transducers
  • Flow Meters
  • Thermocouples
  • Radiometers
  • Lasers

Mode of Operation

  • Provides microgravity test environment for a fraction of the cost of conducting an experiment in space
  • Can accommodate NASA, government, and private industry research programs
  • Two drops per day
  • Engineering staff to perform or consult on payload design
  • Technical staff to perform electrical and mechanical integration of payloads, and drop preparations
  • Third party safety review of experiments is required

 

Further Information
Diagram of the Zero Gravity Research Facility
Diagram of the Zero Gravity Research Facility
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Zero Gravity Research Facility (Zero-G)
A premier facility for conducting ground-based microgravity research.
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Last Updated: January 9, 2008