手法を比較

	比推力 (Specific Excess Power)	重量と重心位置
分野	航空宇宙工学	航空宇宙工学
系統	Process / pipeline	Process / pipeline
提唱年	1970s	1940s
提唱者	John Boyd, U.S. Air Force	Aviation engineering
種類	Tactical metric	Analysis method
原典	Boyd, J. R., & Hammond, J. A. (1971). The mechanics of air combat. Fighter Weapons Newsletter, US Air Force Tactical Air Command.	Federal Aviation Administration (2017). Airplane Weight and Balance Control. Advisory Circular AC 23-8B-1C.
別名	Ps, energy maneuverability theory, specific power	W&B, center of gravity, CG analysis
関連	3	3
概要	Specific excess power (Ps) is a metric that quantifies the rate of change of energy per unit weight, representing how quickly an aircraft can trade speed for altitude (or vice versa) at a given flight condition. Developed by John Boyd in the 1970s as part of energy maneuverability theory, Ps is essential for assessing aircraft performance during combat maneuvering, climb, and acceleration. Specific excess power is widely used in military aircraft design, flight envelope analysis, and tactical air combat assessment.	Weight and balance analysis is the process of determining the total weight of an aircraft and the location of its center of gravity (CG) throughout its operational envelope. Essential for aircraft safety and performance, weight and balance ensures that the CG remains within allowable limits (forward and aft) to maintain stable flight and controllability. Regulatory certification requires comprehensive weight and balance documentation for every aircraft configuration.