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曝光台 注意防骗 网曝天猫店富美金盛家居专营店坑蒙拐骗欺诈消费者 Aircraft Weight and Balance Handbook 2007 U.S. Department of Transportation Federal Aviation Administration Flight Standards Service ii ii P Preface FAA -H-8083-1A, Aircraft Weight and Balance Handbook, has been prepared in recognition of the importance of weight and balance technology in conducting safe and efficient flight. The objective of this handbook is twofold: to provide the Airframe and Powerplant Mechanic (A&P) with the method of determining the empty weight and empty-weight center of gravity (EWCG) of an aircraft, and to furnish the flightcrew with information on loading and operating the aircraft to ensure its weight is within the allowable limit and the center of gravity (CG) is within the allowable range. Any time there is a conflict between the information in this handbook and specific information issued by an aircraft manufacturer, the manufacturer’s data takes precedence over information in this handbook. Occasionally, the word must or similar language is used where the desired action is deemed critical. The use of such language is not intended to add to, interpret, or relieve a duty imposed by Title 14 of the Code of Federal Regulations (14 CFR). This publication may be purchased from the Superintendent of Documents, U.S. Government Printing Office (GPO), Washington, DC 20402-9325, or from GPO’s web site. http://bookstore.gpo.gov This handbook is also available for download, in pdf format, from the Regulatory Support Division’s (AFS-600) web site. http://www.faa.gov/about/office_org/headquarters_offices/ avs/offices/afs/afs600 This handbook is published by the U.S. Department of Transporation, Federal Aviation Administration, Airmen Testing Standards Branch, AFS-630, P.O. Box 25082, Oklahoma City, OK 73125. Comments regarding this publication should be sent, in email form, to the following address. AFS630Comments@faa.gov iv I Introduction This handbook begins with the basic principle of aircraft weight and balance control, emphasizing its importance and including examples of documentation furnished by the aircraft manufacturer and by the FAA to ensure the aircraft weight and balance records contain the proper data. Procedures for the preparation and the actual weighing of an aircraft are described, as are the methods of determining the location of the empty-weight center of gravity (EWCG) relative to both the datum and the mean aerodynamic chord (MAC). Loading computations for general aviation aircraft are discussed, using both loading graphs and tables of weight and moment indexes. Information is included that allows an A&P mechanic or repairman to determine the weight and center of gravity (CG) changes caused by repairs and alterations. This includes instructions for conducting adverse-loaded CG checks, also explaining the way to determine the amount and location of ballast needed to bring the CG within allowable limits. The unique requirements for helicopter weight and balance control are discussed, including the determination of lateral CG and the way both lateral and longitudinal CG change as fuel is consumed. A chapter is included giving the methods and examples of solving weight and balance problems, using handheld electronic calculators, E6-B flight computers, and a dedicated electronic flight computer. vi vii C Contents Chapter 1 Weight and Balance Control.........................................1-1 Weight Control.................................................................1-1 Effects of Weight.............................................................1-2 Weight Changes...............................................................1-2 Stability and Balance Control..........................................1-3 Weight Control for Aircraft other than Fixed and Rotorwing........................................................1-5 Chapter 2 Weight and Balance Theory and Documentation........................................................2-1 Weight and Balance Theory.............................................2-1 Aircraft Arms, Weights, and Moments............................2-1 The Law of the Lever.......................................................2-1 Determining the CG.........................................................2-2 Shifting the CG................................................................2-3 Basic Weight and Balance Equation................................2-4 Shifting the Airplane CG.................................................2-5 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：Aircraft Weight and Balance Handbook
