# Quick Answer: Aviation + What Does The Term V1 Mean During Takeoff?

## What are the effects of V1?

Airport elevation, the existence of any slope on the runway, and the presence of precipitation or ice also play a role. Temperature and wind speed are also factors, as are configuration of the airplane. The bigger the airplane, the higher V1 will be, since the airspeed depends on weight.

## What is V2 on takeoff?

V2: Takeoff Safety Speed. V2 is the minimum speed that needs to be maintained up to acceleration altitude, in the event of an engine failure after V1. Flight at V2 ensures that the minimum required climb gradient is achieved, and that the aircraft is controllable.

## What is the V1 speed for an A320?

The takeoff speed of such aircraft varies quite a bit, depending on the takeoff weight and the use of high-lift devices like flaps (2) and slats.

Aircraft Takeoff Weight Takeoff Speed
Boeing 757 240,000 lb 108,860 kg 160 mph 260 km/h 140 kts
Airbus A320 155,000 lb 70,305 kg 170 mph 275 km/h 150 kts

## What is V1 A320?

V1 is the maximum speed at which a rejected take-off can be initiated in the event of an emergency. This speed is entered by the crew in the MCDU during flight preparation, and it is represented by a “1” on the speed scale of the PFD during take-off acceleration (fig. 2).

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## Why do pilots say heavy?

When a pilot uses the phrase “ heavy,” he is reminding ATC that his aircraft is large and requires more separation between it and the aircraft following.

## Why do pilots say rotate on takeoff?

Pilots say rotate because it is a verbal queue that an airplane has reached its predetermined rotation speed (frequently abbreviated to Vr). This is the speed at which control inputs can be applied to lift the nose off the runway and make the airplane fly away.

## How fast is a 747 going at takeoff?

What speed does a Boeing 747 take off at? A fully loaded Boeing 747 ‘Jumbo Jet’ on a normal long haul flight would take off at a speed of around 160 knots which is 184 mph. The calculated take-off speeds vary depending on environmental conditions, runway length and weight.

## What speed do planes land at?

Q: How fast do airplanes go when landing? A: Commercial airplanes land at approximately 150 to 165 MPH.

## At what speed plane takes off?

Typical takeoff air speeds for jetliners are in the range of 240–285 km/h (130–154 kn; 149–177 mph). Light aircraft, such as a Cessna 150, take off at around 100 km/h (54 kn; 62 mph).

## Can V1 be greater than VR?

No. V1 can be equal to Vr, but not greater than it.

## What is the stall speed of an Airbus A320?

When the flaps lever is moved from 0 to 1 in flight, only the slats are extended. Stall speeds apply to takeoff and landing altitudes only. When takeoff weight is higher than 167,550 lbs, do not exceed 20 kts in a turn. The A320 has two certified CG envelopes.

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## What is V1 speed for a 737?

V1, approximately 145 KIAS, is decision speed. Above this speed, it may not be possible to stop the aircraft on the runway in case of a rejected takeoff (RTO).