FLIGHT SIMULATION ORIENTATION

WHITE ARC

commonly referred to as flap operating range

GREEN ARC

normal operating range

YELLOW ARC

caution range

RED LINE

never exceed speed.

Vso

lower limit of the white arc which is the stalling speed or minimum steady flight speed in landing configuration

Vs1

the lower limit of the green arc and is defined as the stalling speed or the minimum steady flight speed obtained in specified configuration

Vfe

the upper limit of the white arc which indicates the maximum speed with the flaps extended.

Vno

the upper limit of the green arc and the lower limit of yellow arc which is the maximum
structural cruising speed

Vne (red line)

Never Exceed Speed.

Va

– Maneuvering Speed this represents the maximum speed at which you may apply full and abrupt control movement without the possibility of causing structural damage.

Vlo

The maximum landing gear operating speed

Vle

The Maximum landing gear extended speed.

Vr

The rotation/rotating speed.

Vg

Best Glide Speed

Vx

Best Angle of Climb, Delivers the greatest gain of altitude in the shortest possible horizontal distanc

Vy

Best Rate of Climb, Delivers the greatest gain in altitude in the shortest
time.

MEAN SEA LEVEL

The average sea level over a large
region

ABOVE MEAN SEA LEVEL ( AMSL/MSL ) / ALTITUDE OR
ELEVATION –

– The distance of the aircraft above mean sea
level.

ABOVE GROUND LEVEL ( AGL ) / HEIGHT

The is a height
measured with respect to the underlying ground surface.