Collection Item Summary:
This Bio-Harness Assembly was worn under the Mercury pressure suit and was worn by John Glenn during his historic Friendship 7 flight on February 20, 1962.
The components consisted of an electrocardiograph signal conditioner, an impedance pneumograph signal conditioner and a DC-DC converter. These instruments monitored the physiological functions of the astronaut. The sensor attachment in the helmet was for respiration count.
Collection Item Long Description:
National Air and Space Museum
Do not reproduce without permission from the Smithsonian Institution, National Air and Space Museum
John H. Glenn, Jr.
Transferred from NASA - Manned Spacecraft Center
- Sensors: Rubber, aluminium
- Wires: Plastic-coated copper wire
- Microphone: aluminium
3-D (As Displayed): 61 × 3.8 × 1.3cm (24 × 1 1/2 × 1/2 in.)
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National Air and Space Museum Collection
Country of Origin
United States of America