This instrument consists of a marked sphere with 360 degrees of freedom in each axis. It is slaved to the spacecraft's inertial platform and continuously displays attitude information. Three needle-type indicators display attitude, or attitude rate information, as selected by the astronaut.
This device, made by Lear Siegler Inc., flew on Gemini 7, in December 1965, piloted by astronauts Frank Borman and James Lovell.
Donated to the Museum by the McDonnell Douglas Corporation in 1968.
Gift of the McDonnell-Douglas Corporation.