Download or read book A Fixed-Base Ground Simulator Study of Control and Display Requirements for VTOL Instrument Landings with a Decelerating Approach to a Hover written by Edwin W. Aiken and published by . This book was released on 1974 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: An exploratory study of the control and display requirements for performing decelerating transition landings on instruments with the X-22A aircraft was conducted utilizing the X-22A fixed-base ground simulator as a test bed. This experiment was prerequisite for an in-flight VTOL Transition Landing Program using the variable stability X-22A as a research vehicle. Both full and partial transitions to a hover were flown along a 10 degrees glide path at deceleration levels of up to 0.1 g. Various control/display system combinations were designed, developed, and evaluated for the task. Two specific objectives of the experiment were to investigate the benefits of a direct velocity control system, as opposed to the normal X-22A thrust controls, and to determine the feasibility of adapting, through electronic rather than mechanical means, the X-22A duct rotation system to direct velocity control. (Modified author abstract).