Center of pressure moves forward when approaching a stall.

Mcrit is the aircraft’s Mach speed at which the airflow over a wing becomes sonic.

When considering a volume of air, adiabatic lapse rate is the temperature change that is caused by the vertical movement of the volume, andThe Lapse Rate is the rate at which temperature changes with height in the atmosphere.

The Environmental Lapse Rate (ELR) is according to ISA 2°C per 1000 feet increasing altitude.

For unsaturated air, the lapse rate is 3°C per 1000 feet, this is called the Dry Adiabatic Lapse Rate (DALR).

The Saturated Adiabatic Lapse Rate (SALR) is the rate at which saturated air cools with height and is, at low levels and latitudes, 1.8°C per 1000 feet.

1kg = 2.2lbs

Jeppesen charts and plates are simplified and uniform.

Angle of attack is the angle between the chord of the aerofoil and the relative airflow.

Angle of incidence is the angle between the chord and the aircrafts longitudinal datum.

Average range over land 20 - 25 miles.

Range for an NDB can be calculated with:

2√power output in Watts = Range (Land) 3√ power output in Watts = Range (Water)

A wing stalls because the airflow over the wing’s upper surface separates when the critical angle of attack is reached or exceeded. This causes a reduction in the lift generated by the aerofoil

The critical angle of attack is the angle of attack which produces maximum lift coefficient.

This is also called the "stall angle of attack".

No