As the angle of attack is increased on a high-performance airfoil, a small amount of separation occurs near the leading edge. This separation causes the boundary layer to transition from laminar to ...

Considering the characteristics of large slenderness ratio structure, it is reasonable to simplify the dynamics of a HALE aircraft as the plunge, pitch, and flap motions of a planar airfoil. The ...

Initial flight testing explores the characteristics of the airplane as it is initially configured. At this point, the designers have done their best to create a machine that is safe to fly, meets all ...

Aiming at the dynamic stall problem that restricts the improvement of aircraft maneuverability, a new dynamic stall control method based on leading-edge DSJ is proposed in this paper. The results show ...

Biomimetic aerodynamics leverages nature‐inspired design principles to enhance the performance of airfoils, turbine blades and other lifting surfaces. Drawing inspiration from the tubercles on the ...

With loss of control still the primary cause of aircraft fatalities, the FAA last year released the new Airmen Certification Standards, some aspects of it controversial, to replace the practical test ...

In Part 2, we discussed Learjet’s research into improving the stall characteristics of its aircraft. Bombardier’s Clinton E. Tanner, senior technical advisor of flight sciences, points out that ...