Pilot Institute

NOVEMBER 23, 2024

An aft center of gravity increases flat spin risk. A flat spin happens when the center of gravity shifts too far aft (toward the tail), and the aircraft’s rotation becomes more horizontal. In this situation, the wings aren’t producing enough lift, and the aircraft essentially falls out of the sky while spinning.

Center of Gravity 98

Center of Gravity Weight-Shift-Control Aileron Rudder 98

Pilot Institute

NOVEMBER 11, 2024

The outer wing generates more lift than the inner wing since it’s temporarily moving faster. Extra lift makes the wing rise. Increased lift on the raised wing immediately creates more induced drag. Placing the center of gravity ahead of the aircraft’s center of lift improves longitudinal stability.

Stability 52

Stability Center of Gravity Aileron Lift 52

Pilot Institute

NOVEMBER 1, 2024

And ice doesn’t just make things slippery, it messes with the airflow over the wings, cuts down on lift, and ramps up drag. This leads to a serious loss of lift and an increase in drag. This roughness adds to friction drag, which can reduce lift and increase drag by as much as 50% on a wing’s leading edge and upper surface.

Pitot Tube 52

Pitot Tube Drag Lift Airfoil 52

Plane and Pilot

OCTOBER 3, 2024

The airfoil is a Harry Riblett shape, giving modernized flow separation on the leading edge for a soft stall yet with good lift and drag performance. Just recognizable in the background is a horizontal stabilizer and one-piece elevator. Multi-engine seaplanes sensibly run many controls via the overhead, as does the Gweduck.

Airplanes 79

Airplanes Rudder Knot Aileron 79