What is it that makes jets stop when they touch down?

Answer 1

Friction and retarding forces.

Friction comes in the form of wheel brakes and usually contributes to most of the stopping efforts. Retarding forces can be thrust reversal (only 10-15% of the total stopping force most of the times,if employed) and/or aerodynamic means by using air brakes or parachutes (mostly a military option).

Answer 2

Upon touchdown, spoilers on the wing (Usually) will deploy which dumps lift and creates more weight on the wheels. This allows effective braking. Wheel brakes are also used although on larger aircraft the 'autobrake' is used as it allows braking within the braking envalope (i.e to avoid skidding as the pilots in larger jets do not have much 'feel' for the breaks)

Then reverse thrust is also used. The basics of reverse thrust without going into too much detail is to block or redirect the airflow to 'force' the aircraft back, this aids deceleration as well.

On turboprops, reverse pitch is used along with braking. This creates a 'blank disc' effect acting as a huge air brake and some would argue it is more effective that reverse thrust on a turbofan.

Answer 3

A combination of brakes and reverse thrust (if needed).

In fast fighter jets they also use a drogue chute, which is deployed after touch down. This is a parachute which is carried in the tail of the aircraft. After deploying the drogue chute, the brakes are used as well.

Answer 4

in small planes, i like to use as much aerodynamic braking as possible.. so ill touch the main gear down and hold the nose off for as long as possible (creates lots of drag).. once the nose touches down, ill use the brakes.. on larger planes or jets, i use reverse thrust.. the engine re-routes the airflow from shooting out the back to shooting forward, against the direction of travel.. once you get slowed down a bit, i use the brakes to come to a complete stop.. most jets have spoilers as well (aerodynamic brakes).. those are the things on top of the wings that pop up on landing..

Answer 5

Depends on the jet... MOSTLY it is the wheel brakes, then aerodynamic braking (gravity), and cutting power.

Commercial and private jets have thrust-reversers.

And of course Naval aircraft have hooks for the arresting gear

Answer 6

Mainly, lack of power. Any vehicle, air, water or land will stop when the power is turned down. If the aircraft happens to land on a runway that is too short to stop on (which is mostly the case) with just turning off the power, then brakes are used.
If they must turn off shorter than what braking will accomplish, some are fitted with thrust reversers, or reversible propellors, in case of prop planes, which are used along with the brakes.

Answer 7

1. The wheel brakes.
2. The thrust reversers.
3. The flaps and spoilers on the wings.

Answer 8

The biggest factor are the wheel brakes. Next are the thrust reversers. Last is simply the drag of the form through the air.

Answer 9

Several things. First, the wing flaps are moved upward to increase the friction between the plane and the ground. Second, all jets have retro also called reverse thrusters. They're like jet engines facing the opposite direction. These thrusters cause the jet to decelarate very quickly. Third and last, some jets have brake systems in the wheels to also help with decelaration.

Answer 10

they use Revese thrust and wheel brakes on jets.
Wheel brakes on Props.