Gene J Matranga,"Unconventional, Contrary, and Ugly: The Lunar Landing Research Vehicle".
Publisher: National Aeronautics and Space Administration.| ISBN: 0326548754 | 2005 edition | PDF | 242 Pages | 21.16 MB
When the United States began considering a piloted voyage to the moon, an enormous number of unknowns about strategies, techniques, and equipment existed. Some people began wondering how a landing maneuver might be performed on the lunar surface. From the beginning of the age of flight, landing has been among the most challenging of flight maneuvers. Touching down smoothly has been the aim of pilots throughout the first century of flight. Designers have sought the optimum aircraft configuration for landing. Engineers
have sought the optimum sensors and instruments for best providing the pilot with the information needed to perform the maneuver efficiently and safely. Pilots also have sought the optimum trajectory and control techniques to complete the approach and touchdown reliably and repeatably.