Research On The Key Technology Of Civil Aircraft Take-off Performance In High Elevation Airport

The takeoff process is a pivotal phase of the flight assignment and is also the phase of high frequency of flight accidents, so the takeoff performance becomes one of the main contents in the study of the flight performance. Many areas of our country are plateau and high-frigid region, and the plateau airports play an important role.The main contents are following:1. Airplane take-off performance was integrated with plateau airports environment, by the analysis of force and movement during the process of airplane's takeoff, the mathematical relationship is established and give a method subsection integral, educe the formula for take-off slide distance and take-off air-flying distance.2. Turns and flyby obstacles analysis. Establish a mathematical model, combine the grade loss and crosswind, give out a method that turn the turning flyby obstacles to straight flyby obstacles, and simplify method of turning flyby obstacles.3. Oxygen providing in pressure-lost cabin analysis. Give out a method to find the equal-time point in all flight path, improve the way to calculate the amount of oxygen provided.4. Exploit one-engine out emergency procedure. The methods of finding the decision-making point have been given. Choose the point where the plane can wave and land safely when its height is adequate. And for B737-700, Lasa airport 09 runway, one take-off one-engine out emergency procedure has been exploited.