Apollo 17 The wing of the eagle partially overlays the Moon, suggesting man's established presence there. The gaze of Apollo and the direction of the eagle's motion embody man's intention to explore further destinations in space. The patch includes, along with the colors of the U.S. flag (red, white, and blue), the color gold, representative of a "golden age" of spaceflight that was to begin with Apollo 17. The image of Apollo in the mission insignia is a rendering of the "Apollo Belvedere" sculpture. The insignia was designed by Robert McCall, with input from the crew. Like Apollo 15 and Apollo 16,
Apollo PGNCS Two PGNCS alarms (1201 "No VAC areas available" and 1202 "Executive alarm, no core sets") were relayed to mission control on the first lunar landing attempt on July 20th 1969. The computer system overload was caused by the simultaneous capture of landing radar data and rendezvous radar data. Apollo PGNCS The Apollo Primary Guidance, Navigation and Control System (PGNCS) (pronounced "pings") was a self-contained inertial guidance system that allowed Apollo spacecraft to carry out their missions when communications with Earth were interrupted, either as expected, when the spacecraft were behind the Moon, or in case of a communications failure. The