Less induced drag for the same lift is a bargain, but it only exists close to the landing surface.
Another thing should be obvious: Since the induced drag reduction is greater closer to the landing surface, as we climb away from a runway after takeoff, drag increases.
A final thing to keep in mind is that what goes up must come down: The ways an airplane experiences ground effect when taking off and climbing away from the landing surface are inverted when descending to and landing on it.
The increase in stiffness of the landing surface increases the surface reaction force and plantar pressure acting on the foot.
The effect of landing surface on the biomechanical responses of different plantar regions has not been well investigated.
Jeremy Renner commented Samuel L Jackson's age, saying: "The true abilities of a cinematographer are often tested most when an ageing star, who's years, make that decades of want and self abuse leaves his face looking like a Luna landing surface
Rubberific is also a safer playground surface and provides a cushioned landing surface
under monkey bars and other playground equipment, its promoters say.
The first step is to provide a safe environment, specifically the runway, the landing surface, and the area surrounding the pit.
The landing surface should be marked with a "Safe Zone," and the base pieces of the pit must be securely fastened together with no gaps between them.
The trampoline's supporting bars, strings and surrounding landing surfaces
should have adequate protective padding.
Well, the top of a car might not sound like the cushiest of landing surfaces
The supporting bars, hooks, springs, strings and surrounding landing surfaces
should be completely covered with adequate shock-absorbent protective padding.