Optimum Lift/Thrust System for V/STOL Aircraft

摘要

This paper discusses the tradeoffs between size of a lifting rotor and its power, fuel consumption and jet noise, and defines new lift/thrust fans to achieve the large optimal bypass ratio without gears or multi-stage power turbines. The presentation describes these AVX? ducted fans, having gas-reaction tip drives with upper surface blowing of the fan blades, and their application in a vectoring lift/thrust system for Vertical / Short Take-Off & Landing (V/STOL) aircraft.