An experiment to study subcooled pool boiling of FC-72 was flown on the maiden flight of the Terrier-Improved Orion sounding rocket on December 17, 1999, which provided about 200 s of microgravity time.   The rocket was launched from NASA’s Wallops Flight Facility in Chincoteaque, VA.  It reached an altitude of 168 km, and landed about 70 km out into the Atlantic Ocean.  Post test analysis indicated that the payload experienced accelerations of less than 1E-6, the quietest microgravity environment of any platform tested to date.

Links to pictures of the test rig and a QTVR are given below.

The payload that was designed, built, and tested at UMD to study boiling heat transfer between January and September, 1999.

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A QuickTime Virtual Reality (QTVR) file of the test section allowing you to see it from all angles.

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Components of payload before assembly. From left-to-right are the Rate control system (used to orient and stabilize the rocket once in space), the boiling payload, the SAMS fiber optic accelerometer and gyroscopes, and the telemetry unit.

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Video taken during vibration testing of the payload. The payload is placed on a vibration table and a sine sweep from 20 Hz to 2000 Hz is performed at an amplitude of 10 g at the base of the payload to simuate a rocket launch.

MPEG Movie

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An explanation of how the rocket is guided.

WAV file

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The morning of the launch. The rocket is mounted on a launch rail. When ready to launch, the building moves away uncovering the rocket, which is then raised to the desired elevation and azimuth. The payload was powered by two rocket motors.

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Recovery of the payload by the US Coast Guard.

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