Difference between Vx and Vy – Vx is the slowest indicated airspeed read from the airspeed indicator on an aircraft. It is the greatest angle of climb depicted by an aircraft that allows it to ascend to altitude within a short horizontal distance. On the other hand, Vy is comparatively faster than the Vx and at the same time allows the aircraft to ascend to altitude within a short time, albeit over a longer horizontal distance (Lennon, 1996).
Cause of aircraft overbanking tendency – Overbanking tendency is conclusively caused by an unstable spiral mode L-D stability, which causes interplay of sideslip then subsequent yaw and roll into the accelerating downward spiral coupled with differential lift from a banking wing and the flight that is at high-speed (Daidzic, 2015).
Delegate your assignment to our experts and they will do the rest.
How airspeed above and below L/D Max airspeed affects glide – The glide ratio, being the ratio of an aircraft’s forward motion to its descent, is considered numerically equal to the lift-to-drag ratio generated by a wing. To this extent, it would suffice to say that the maximum L/D occurs during a faster airspeed. Hence, the best instances of glide occur at minimum wind conditions with accurate control of airspeed while reducing drag at the deflected surfaces of the aircraft. The distinguishing factor being the drag exhibited during the flight. Airspeed above the lift to drag ratio therefore result into a maximum range glide since at the maximum L/D, the glide ratio would as well be at its peak (Daidzic, 2015).
References
Daidzic, N. E. (2015). A Contribution Toward Better Understanding of Overbanking Tendency in Fixed-Wing Aircraft. Journal of Aviation Technology and Engineering, 4(2) , 2.
Lennon, A. (1996). Basics of R/C Model Aircraft Design: Practical Techniques for Building Better Models. Motorbooks International.
