how do airplane accelerate on the ground?

Question

is airplane use pedal like cars? how do airplane speed up?

Answer 1

Engines.

The throttle speed control for the engines (jets or propellers) is controlled by hand, usually with separate controls for each engine.

The "steering wheel" or yoke in an airplane controls the Ailerons, which make the plane roll left or right. It also controls the elevator, which makes the plane pitch up or down. The foot pedals control the rudder, which makes the plane yaw left or right. On the ground the foot pedals also steer the front landing gear, so the pilot uses the foot pedals to drive around (taxi) to and from the runway.

Answer 2

WOW!!! Of course, some people are just being funny with their answers, but a few of you are way off with your answers!

Airplanes have three primary controls, elevators, ailerons and rudders.

1. The elevator is controlled by moving the control column (called a yoke, which resembles a steering wheel) forward and aft. The elevator makes the airplane go up or down.

2. The ailerons are controlled by turning the yoke just like you would a steering wheel. This makes the airplane roll.

3. The rudder is controlled by pressing on the rudder pedals with the pilot's feet. This makes the airplane yaw.

On the ground, most airplanes are steered with the rudder pedals. There are some very large airplanes, such as the one that I fly, called the C-5 Galaxy, that uses a tiller to the left side of the pilot's seat. The Boeing 747 has a similar configuration. Some planes have tillers on the sides of both the pilot and copilot's seat. The tiller resembles a very small steering wheel and has a large button in the center, so that you can activate it with your palm while you are steering the aircraft, that allows you to speak over the airplane's interphone.

To activate the wheel brakes, you press on the top of the rudder pedals. The nosewheel has no wheelbrake. If you press on the top of the right rudder pedal then you will get only brakes on the right side. Vice versa with the left pedal. Often times, pilots use "differential braking" to tighten the airplanes turn radius on the ground.

As far as propelling the aircraft on the ground, it is done with the engine(s) just the same way as it is in the air. Some people incorrectly think that the wheels drive the airplane like a car when on the ground. This is not true. Regardless of whether the airplane is on the ground or in the air, the engines' thrust output is controled with "throttle" levers. Each engine has its own throttle lever. Just like using differential braking, pilots also sometimes use differential thrust to tighten an airplane's turn radius on the ground.

In many airplanes, the pilots also use the throttles to reverse the thrust of the engines to aid in stopping the aircraft after landing.

Answer 3

Airplanes accelerate by the thrust produced from either its propellers or jet engine. By producing enough thrust in a rearward direction, the opposite reaction would then be in a foreward direction...which is why the aircraft moves foreward.

Also, airplanes do not use pedals like a car does. There is usually a lever the pilot pushes or pulls to make the aircraft speed up or slow down.

Answer 4

Airplanes accelerate by forcing air backward at speed. The principle is Newton;s Third Law of Motion, for every action there is an equal and opposite reaction. Jets force heated air out the back of the turbofan, and this then forces the airplane forward. It's similar in principle to letting go of a baloon that you have inflated but not tied off. The baloon shoots across the room as the air is expelled from it.

Same thing with an aircraft, where a jet forces air out at high speed from combustion, and a propeller actually speeds up the air and physically pushed it backward. The designs of each limit the propeller in terms of overall speed and acceleration compared ot the jet.

Answer 5

The pilot pushes on the throttle control. On a small plane it is like a plunge button. On big planes it is a lever. The pilot usually does this with his right hand. There is only one throttle so the co-pilot would use his left hand. Speeding up on the ground just uses the power of the engine.
Speeding up in the air is different. You point the nose of the plane down a little and pick up the extra speed you want from going down hill for a bit, then you trim it up to fly level and add a little power to keep the speed you've gained. Speeding up in the air uses mostly gravity.

Answer 6

TruthIsRelative's answer is the correct answer, 100%.

Don't listen to these other people.

Also, propulsion is what moves it. Just think about attaching a jet engine onto your vehicle, it might not be putting force onto the ground, but it is using propulsion to move, no?

The foot pedals are for the rudder, it turns the plane right or left. However, without using a combination of your flaps and ailerons you won't be changing direction very much.

Also, to slow down, they put the flaps down at whatever degree needed (depending on the angle of descent, or just how much they want to slow down and how much they can compensate with the yoke). It creates drag and slows the plane down, then they'll decrease throttle as well. And there are brake systems on the wheels for when it touches the ground.

Answer 7

Either a propellor or an jet engine depending on the type of plane...and yes there are pedals in the airplanes but they have nothing to do with power the two pedals on the floor control the steering via the rudder in the back....

Answer 8

good lord,, doesn't anyone know basic physics?
look,, in the case of jets, air is sucked through a large opening in the front as it travels through the turbine the air is forced out the back through a smaller hole creating THRUST. the moves the plane forward till such a speed when the air under the wings lifts the plane into the air this is called LIFT. jets have a throttle similar to a boat a lever is pushed forward for more power. all the pedals on the floor are for turning the flaps on the wing combined with a steering wheel to control the tail rudder but that's probably more info that what was asked. PROPELLER planes do the same to lift as a jet,,, but a prop pulls the air over the wings to achieve thrust

Answer 9

Actually the airplane accelerate on ground by taking the air in combustion chamber if it is having jet engine and at high temprature it heat the air and eject throw small area

Jet Engine-A jet engine is an engine that discharges a fast moving jet of fluid to generate thrust in accordance with Newton's third law of motion. This broad definition of jet engines includes turbojets, turbofans, rockets and ramjets and water jets, but in common usage, the term generally refers to a gas turbine used to produce a jet of high speed exhaust gases for special propulsive purposes

Answer 10

All the flight personnel aboard have bicycle pedals, and they pedal in unison to get the monster to flying speed. If they don't get to the proper speed in time, the plane crashes off the end of the runway.

There are so many wrong answers above, it's disgusting. Why don't you know-nothings leave the answering to experienced professionals?