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a11_v_bw_o_n (Ryan Aeronautical Co. official photo, no. 5024-C)

“SOFT LANDING ON THE MOON, Apollo 11 Astronauts Neil Armstrong and Edwin Aldrin will use the Lunar Module’s landing radar system to measure how high they are and how fast they are descending. Built by Ryan Aeronautical Company, the radar is on the underside of the descent stage, near the descent engine. Illustrated, from left, is engine turn-on at 50,000 feet; rotation to “windows up” at 45,000 feet so the landing radar will acquire return signals from the moon; near vertical descent from 500 feet, with the astronauts in control and the radar supplying indications of altitude and descent rate; and the actual landing surface exploration in the Sea of Tranquility.

 

(Illustration by Robert Watts)”

 

First Robert Watts work I’ve come across of an Apollo 11 ‘scene’.

 

6.625” x 10”.

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Uploaded on December 30, 2018