guide

Take-Off

V1

Decision Speed

The pilot must decide before the aircraft reaches V1 speed whether or not the take-off should be aborted.

Tip: If using the IF-Assistant app, subtract 5 knots when setting the V1 callout. In real operations, V1 is called out 5 knots early.

Vr

Rotation Speed

Vr is the speed at which the pilot rotates the aircraft to the specified pitch angle, generally 5° to 7.5°.

V2

Take-off Safety Speed

The minimum speed for which the aircraft can safely fly on one engine.

t/o

pitch

Initial Climb Speed

As the pilot pitches the nose angle of the aircraft up during initial climbout, he/she should aim for a target speed (T/O Pitch) instead of a certain vertical speed. While maintaining take-off thrust, the pilot should pitch the nose of the aircraft up until stabilized at the T/O Pitch speed.

‚Äč

This speed is generally reached with a 12.5° to 18° pitch angle. The pilot should pitch the aircraft when approaching T/O Pitch speed so that the speed neither increases nor decreases with proper thrust set. At 1500', the pilot then reduces thrust by 2-6% N1 and lowers the nose to accelerate up to 250 knots.

f

Retraction to Flaps 1

The speed above which the pilot should retract flaps to Flaps 1 if the aircraft is set with Flaps 2 or more.

s

Full Flaps Retraction

The speed above which the aircraft should be set to Flaps Up.

green dot

Minimum clean speed

The minimum clean speed on takeoff.

Landing

green dot

Flaps 1

On landing, Green Dot is the speed below which the pilot should select Flaps 1.

Vapp

Approach Speed

The final approach speed when the Slats/Flaps are in landing configuration and the landing gears are extended.

vref

Landing Speed

The speed required as the landing runway threshold is crossed at a height of 50 feet in landing configuration. Defined as 1.3x the stalling speed in the stated landing configuration at the prevailing aircraft weight.

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