Description

This instrument is the Redundant Instrument Package for the Strapdown Inertial Reference Unit (SIRU), an inertial navigation system developed by MIT’s Charles Stark Draper Laboratory for the NASA Johnson Space Center.

The Redundant Instrument Package consists of six single degree-of-freedom gyroscope modules and six linear accelerometer modules, and was designed with enough redundancies that the system could still function with three out of six modules failing for each instrument type. It was designed for navigational systems for post-Apollo spacecraft.

Additional Information

The final report for the SIRU gyro module can be found here: https://ntrs.nasa.gov/api/citations/19730022876/downloads/19730022876.pdf

Type

plaque

Location

top strut

Method

engraved

Text

SIRU - Redundant Instrument Package Developed by MIT Draper Lab for NASA/MSC

Type

plaque

Location

one on each module

Method

engraved

Text

SIRU Gyro Module / Developed by / The Charles Stark Draper Laboratory / for / The National Aeronautics & Space Administration / Contract No. NAS 9-8242 ASSY. no. 2300005 Serial no. [various]