What do pilots mean when they say the following ?

Question

when they take off the captain often says 'V1, V2, rotate, gear up' or 'flaps to 1' when landing ?

Answer 1

V1 is the critical engine failure speed. It's the speed where you have your last chance to stop after you lose an engine while taking off.

Vr, or rotate, is the speed where you can pull back on the stick or control column, and take of.

V2 is the speed at which a plane must rotate at risk of damage.

Gear up is said when it is acknowledged that the plane has "positive rate", that is, the plane is climbing up. The wheels on the bottom of the plane, the landing gear, then enter into the landing gear wells on the plane to reduce the drag.

Flaps to 1 is talking about the flaps system. If you have ever had a wingside seat, you have probably seen the flaps. They are used to increase lift during takeoff, and it is almost impossible to takeoff without them. 1 means that the flaps should be set to one degree. Flaps help lenghthen the wing by angling the back of it down.

Answer 2

V1 is the speed at which the pilot must decide to go or not go. V2 is the minimum safe take off speed. Rotate is called, the stick is pulled back and you commence getting airborne.

Answer 3

'V1, V2, rotate, gear up' at terms used during take-off.

Answer 4

v1 and v2 are critical airspeeds such as stall speeds. A certain speed must be met before the pilot will pull back on the yoke, which is when they call out "rotate." Gear up means that they are retracting the landing gear, and flaps to 1 means that they are incrementally putting the flaps back in.

Answer 5

V1 and V2 mean different speeds. I think V1 is the speed in which a pilot MUST continue the takeoff as he or she cannot stop the plane in a safe amount of time.

V2 is the speed in which it is safe for the plane to takeoff and leave the ground.

Rotate means the nose lifts off the runway and the rest of the plane follows.

Flaps 1 means the copilot or captain is telling the other pilot to move flaps to 1 to slow the plane down or create lift.

Answer 6

Havent a clue soz.

Answer 7

These are terms used when there are two pilots, ie. usually on commercial aircraft. V1, V2 & Rotate speeds are calculated before take-off. The pilot flying the take-off will be handling the controls & looking ahead, while the pilot not flying keeps an eye on the instruments.

When the aircraft reaches V1 (the decision speed, after which it will be impossible to stop safely) he will call "V1", then "V2" when the minimum take-off speed is reached, followed by "rotate" at the speed at which the pilot flying should start rotating the nosewheel off the ground.  When the aircraft is off the ground and definitely climbing he will say "positive rate" (that is, positive rate of climb) and the pilot flying will command "Gear up", at which the pnf will raise the landing gear.  The pilot flying will also ask for the flaps to be raised from the take-off position as he requires.

The idea, you see, is that the pilot actually flying keeps his attention on the job in hand, using the other pilot to scan the instruments, so he doesn't have to divert his attention to inside the flightdeck.

The same sort of thing happens during the descent, approach and landing where the pilot flying requests the other pilot to lower flaps by stages until they reach the position he requires for landing.  It'll be something like "Flaps 5", "Flaps 20", "Flaps 30" etc.,according to the aircraft and the pilot's requirements. The same happens with the landing gear.  Then the pilot not flying will usually call the speeds at relevant points, again so the handling pilot doesn't have to look inside.

Answer 8

sounds like foreplay to me, get ready for liftoff!

Answer 9

V1 is takeoff decision speed.  If you experience an engine failure (or other major malfunction) prior to V1 you will abort the takeoff (i.e. stop the airplane on the remaining runway).  If the failure occurs after V1 you'll continue the takeoff because you won't have sufficient runway to stop the airplane.  The reason for verbally announcing "V1" is because the pilot who is doing the takeoff is looking at the window and not at the airspeed indicator.

V2 isn't really important unless you lose an engine, then it becomes VITALLY important.  It's the speed that will give you the best rate of climb with one engine inoperative and flaps in the takeoff position (you're too slow at this point to raise the flaps so you have to live with the extra drag for a while).  V2 airspeed is maintained until you reach what is called "acceleration height" (typically 1,000 feet above the ground but may be higher if obstructions are present).  At acceleration height you can start increasing your airspeed (by lowering the nose slightly - your remaining engine is at full power so you change airspeed by changing your angle of climb).  Once you gain a little more airspeed you can raise the flaps and continue the climb at your "clean" (flaps up) best rate of climb airspeed.

I know that was a long winded answer but I wanted to explain a little how the airspeeds are used in actual operations.

"Rotate" (sometimes called Vr) is the point where the pilot flying begins to raise the nose of the airplane to the takeoff attitude (usually about 15-degrees).  (By the way this doesn't mean the airplane should be off the ground.  Your looking for a smooth, slow transition to the climb attitude of 15-degrees).

When calling for "flaps 1" it sounds like it's a large airliner and the captain is calling for 1-degree of flaps.  1-degree isn't a lot but with Fowler flaps selecting 1-degree also moves the flaps rearward and increases the wing area.

I don't know what your flying experience is but in airline operations the pilot flying doesn't lower the gear or flaps him/herself.  He commands the "pilot not flying" (PNF) to do this.

Answer 10

The other explinations are pretty good, but flaps 1 usually means the first setting, which is slats extend without flaps.  It has a one on the flap/slat indicator, and it's for the leading edge devices without any flaps.  They also help you to slow down, or fly slower if you need to.

Answer 11

Sorry don't know!

Answer 12

all in checklist v1 is takeoff speed v2 is maximum takeoff speed with no turning back gear up is the gear is being lifted

Answer 13

I thnk he`s talkin about his Flaps... lol