In-flight demonstration of a real-time flush airdata sensing system

A prototype real-time flush airdata sensing system (FADS) developed at the NASA Dryden Flight Research Center uses a matrix of pressure orifices on the vehicle nose to estimate airdata parameters in real time using nonlinear regression. System performance has been evaluated by comparing the real-time FADS to the ship system airdata computer measurements to give a quantitative evaluation relative to an accepted measurement standard.