an aircraft runway?

Question

many planes i see land about 100 ft. into the runway on big white lines why do they do that

Answer 1

Come on, admit it, it's every pilots goal to make a perfect, smooth landing and touching down on that white stripe while making the perfect landing is just icing on the cake.

Answer 2

Im not sure exactly what you're looking for but the reason for the massive white lines is simply to be able to line yourself up from a long distance (hard to see freeway lines from the air). If you mean why do land so early is because airports are designed for the biggest possible planes, so smaller ones don't use the entire runway. Also the aiport would rather they keep landing in the same spot, keeps the wear and tear in a specific zone so they have to replace less of runway when the time comes.

Answer 3

if they don't land 100 feet to 200 feet down the runway, there a severe safety issues.the white lines just happens to be there to help you know when to flare (pulling the aircraft's nose up slightly to decrease descent rate) and see the runway better.

- if there is a downdraft, the aircraft can land short of runway. (Jet engines take a long time to spool up and down)

-If there is an engine failure, same thing described above can occur

-The aircraft may come too low over the airport perimeter and possibly, take away a fence, light post, etc.

-Some runways are extremely close to the airport perimeter and the aircraft may take away a fence, light post, etc. with its landing gear.

and other problems.

Answer 4

Those are runway markings to help pilots define a touch down point for which they can aim while on the final approach. This ensures that they donot touchdown in the undershoot area nor do they land a long way down the runway when braking may nor prevent them from overshooting. This is merely a guide line for the sake of pilots landing accurately.

Answer 5

On a precision marked runway the touchdown lines are 1000 feet down the field. These are for instrument approaches to insure against landing short. If you are VFR you can land on the numbers if you like, but nearly all instrument rated pilots always land on the touchdown marks.

Answer 6

Those big white blocks on either side of the center line are at 1,000 ft... That is right where the ILS should drop you down if you follow it to the runway...

Answer 7

The bigger white lines indicate the target for landing. If one maintains the optimal glideslope angle, you will invariably hit this area. It is a ways along the runway to allow for being a little below glideslope and still be able to safely land.

Answer 8

the further from the touchdown zone /marked with the "big white lines" / you land the less distance for braking you have. result. landing at the far end of the runway makes you to run out of runwaz into the clearway. passengers are not fond of seeing grass flying behind the windows.

Answer 9

ok I'm a Captain with over 16,500 hours. I think your asking what that big white line in the middle is used if, well that is where we put to nose gear at, that is the center of the runway... I do not understand your question???