The LM featured two small, triangular forward windows for the crew. Installed obliquely, the windows gave a downward view of about 65 degrees and an outboard view of 80 degrees. The commander’s window featured etched grid markings (the Landing Point Designator or LPD) that let them align their descent trajectory with pre-planned targets on the lunar surface.
LANDING POINT DESIGNATOR (LPD) — this consisted of two etched lines on the window glass, used to fix the landing point of the LM based on the current trajectory. The guidance computer showed a value on the DSKY (Noun 64), which the pilot read out to the commander, who then looked out through the window and used that reading against the graduated LPD scale to see the exact point the computer was steering to. If that patch looked bad, he would use the hand controller to steer away, and the DSKY would relay an updated reading. In this simulation, you will additionally see an amber pointer and ring where the value read against the scale crosses the centre line, marking the target landing point.
CRATERS — dark bowls with bright rims. The shadowed near wall shows their depth. Avoid them when choosing a site.
TARGET RING — the computer’s target landing point, projected on the ground. Hold SPACE and tap the arrow keys to move it. This is visible during P64 only, and is intended to be a teaching aid. The Apollo astronauts actually used only the LPD scale.
SHADOW — the LM’s shadow, thrown ahead by the low sun behind you. It slides toward you as you descend and meets the craft at touchdown.
DUST — blown up by the engine below about 100 ft. It may obscure the view, so fly the last seconds using the instruments.