anhedral is the downward inclinitation of the wing from the root to the tip.

Dihedral provides:

Lateral stability (during a roll) Wing clearance, wingtip to ground has more space

Mach tuck is a nose-down pitching moment experienced as an aircraft passes Mcrit.

Mach tuck is a form of longitudinal instability that is caused by the centre of pressures rearward movement (caused by the shock wave) behind the centre of gravity.

A line of latitude.

Airplanes can get uncontrollable during windshear.

A swept wing makes the velocity vector normal to the leading edge a shorter distance than the chordwise resultant.

A wing tip is the part of the wing that is the most distant from the fuselage of a fixed-wing aircraft.

Radiation fog forms on cloudless nights with only very light winds and high relative humidity when the cold ground cools the air above it to its dew point causing condensation (fog).

Usually occurs inland in valleys and low lying areas (as these areas tend to have more moisture) and usually occurs in a high pressure system.

1. Unload. Make sure you are no longer 'pulling G's'

2. Roll wings level

3. Power Reduce the power to avoid overspeeding.

4. gently pull back on the control wheel to ease out of the dive.

When slowed down to a safe airspeed apply throttle as needed.

(N.b.: Do not confuse a spiral dive with a spin)

By using the formula: Range (nm) = 1.23(√H1 + √H2)

H1=height of transmitter (feet)

H2=height of receiver (feet)