РефератыИностранный языкGrGrumman X29 By Pace Essay Research Paper

Grumman X29 By Pace Essay Research Paper

Grumman X-29 By Pace Essay, Research Paper


I have chosen to do my book report on the book ?The Grumman X-29?, by Steve


Pace, for a couple of reasons. I?ve seen the X-29 in flight at an air show and


was mystified by its wing design. I asked myself how could something like that


fly at all? This book shed some light on the mysteries of how the X-29 flies and


performs. I am going to tell you a little about the book and the X-29, so sit


back relax and enjoy the fruits of my reading labor. The X-29 is a single-engine


aircraft 48.1 feet long. Its forward-swept wing has a span of 27.2 feet. Each


X-29 was powered by a General Electric F404-GE-400 engine producing 16,000


pounds of thrust. Empty weight was 13,600 pounds, while takeoff weight was


17,600 pounds. The wing substructure and the basic airframe itself are aluminum


and titanium. Wing trailing edge actuators controlling camber are mounted


externally in streamlined fairings because of the thinness of the supercritical


airfoil. The aircraft had a maximum operating altitude of 50,000 feet, a maximum


speed of Mach 1.6, and a flight endurance time of approximately one hour.


Overall, VFC, like the forward-swept wings, showed promise for the future of


aircraft design. The X-29 did not de

monstrate the overall reduction in


aerodynamic drag that earlier studies had suggested, but this discovery should


not be interpreted to mean that a more optimized design with forward-swept wings


could not yield a reduction in drag. Overall, the X-29 program demonstrated


several new technologies as well as new uses of proven technologies. These


included: aero elastic tailoring to control structural divergence; use of a


relatively large, close-coupled canard for longitudinal control; control of an


aircraft with extreme instability while still providing good handling qualities;


use of three-surface longitudinal control; use of a double-hinged trailing-edge


flap at supersonic speeds; control effectiveness at high angle of attack; vortex


control; and military utility of the overall design. The book was overall very


informative in the sense that all terms and ideas were explained clearly and


simply in order to communicate to the general public better versus someone who


is educated in the aeronautics field. I highly recommend this book to someone


looking for a little overall knowledge of the X-29, but if you are looking for


in-depth report and analysis you should look elsewhere.


http://www.dfrc.nasa.gov/PAO/PAIS/HTML/FS-008-DFRC.html

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