The launch vehicle engine annunciator is a display located on the Apollo command module's main display console (MDC). Part of the Caution and Warning Subsystem, which monitored critical parameters of most of the spacecraft operational systems, this display alerted the crewmembers to malfunctions of any of the launch vehicle engines or "out-of-tolerance" conditions when they occurred in any of the engines.

This display was flown on Apollo 16 and NASA transferred it to the Smithsonian in 1976.

Display Status

This object is on display in Destination Moon at the National Air and Space Museum in Washington, DC.

Destination Moon

Object Details

Country of Origin

United States of America

Type

INSTRUMENTS-Miscellaneous

Manufacturer

Grimes Manufacturing Co.

Dimensions

3-D: 9.8 × 7 × 8.3cm, 0.4kg (3 7/8 × 2 3/4 × 3 1/4 in., 0.8lb.)

Materials

Aluminum, Plastic, Phenolic Resin, Coating, Paper

Inventory Number

A19770140000

Credit Line

Transferred from the National Aeronautics and Space Administration

Data Source

National Air and Space Museum

Restrictions & Rights

Open Access (CCO)
For more information, visit the Smithsonians Terms of Use.