Can V1 be after rotate?

Could you theoretically rotate before you hit V1 since you’re not going to run out of runway? No. Because V1 means you will always have enough runway to stop if you choose to abort BELOW that speed. Vr is the rotation speed of the aircraft.

Why do pilots say positive climb?

One of the callout items used in crew resource management, and one that many pilots are and should be in the habit of using, is “positive rate of climb.” The process of confirming that an initial climb has been established after the airplane leaves the ground is the signal to retract the gear.

What affects V1 speed?

Velocity Speeds ForTakeoff The calculation of V1 is a matter of many factors. The weight of the aircraft and its cargo is the most important component. Airport elevation, the existence of any slope on the runway, and the presence of precipitation or ice also play a role.

Is VR less than V1?

No. V1 can be equal to Vr, but not greater than it. V1 is essentially a decision speed. If you have a failure (of any kind) before, or at, V1 then you know that you can abort the takeoff and safely stop on the runway.

Why do pilots say rotate?

Long story short, pilots say rotate as a verbal queue that the aircraft has reached its predetermined Vr and hence appropriate inputs can be applied to safely pitch the aircraft in a nose-up attitude to gain lift.

Why do pilots say Airspeed alive?

Caramon13 Pattern Altitude “Airspeed alive” means that the aircraft has passed this speed and the airspeed indicator has started to move above the minimum speed that it can display. Also it helps to validate that both the indicator is working and that you are making speed at the expected rate.

What is positive climb rate?

In aeronautics, the rate of climb (RoC) is an aircraft’s vertical speed, that is the positive or negative rate of altitude change with respect to time.

How does weight affect V1?

EFFECT OF WEIGHT ON V1 speed. With limiting runway length, the V1 speed will be lower for a higher weight to cater for the longer stopping distance required. But remember, the minimum value of V1 can never be less VMCG (Minimum Control speed on Ground).

What is improved climb?

Improved climb is a fancy way of saying “better takeoff” or “stronger takeoff” where the plane will take off more strongly from the ground, angling upwards at a faster pace. This can be done using faster speeds or longer wings, among other techniques.