During one of my visits to the University of Alabama in Huntsville archives, I scanned the "Lunar Module Controls and Displays" pages from the Apollo Lunar Module News Reference. I eventually pasted them together to create a single graphic containing the Lunar Module control panel.

Proceed to download links.

While preparing this image for upload, I couldn't help but think of some of the events and stories involving the LM control panel.

Three of the LM's four legs have lunar surface sensing probes. Mounted on the bottom of the landing gear's foot pad, they were essentially five-foot-long "feelers": Once one touched the lunar surface, a lunar surface "contact light" lit, indicating to the crew that they were in close proximity to the surface and that they should cut the DPS engine:

At some point in the EVA process on Apollo 11, Buzz Aldrin broke the knob off the the circuit breaker used to arm the Ascent Propulsion System engine (the ENG ARM or "engine arm" breaker):

On Apollo 13, an O₂ tank exploded, causing multiple failures, and the astronauts used the Lunar Module as a lifeboat. The LM's environmental control sysem, designed to sustain life for two astronauts during the lunar stay, was now called upon to handle three astronauts for the duration of the mission. The level of carbon dioxide (CO₂) soon climbed to dangerous levels, as indicated on the CO₂ Partial Pressure meter:

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I've prepared several versions of this drawing:

• A 1920x932 image, suitable for use as your desktop wallpaper; 608k.
• A web-resolution PDF for the casual visitor; 873 kilobytes. View now.
• A 300-dpi version for serious study; 2.2 megabytes. Download now.
• A 600-dpi version suitable for printing your own copy; 10.8 megabytes. Download now.