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If the aircraft's altitude is constant, that means its vertical speed is zero. That
indicates zero vertical component of any acceleration, which in turn implies that
vertical force components are balanced. So you can say with assurance that the
sum of (lift produced by the wings) PLUS (any vertical component of thrust due
to a positive angle of attack) is equal to the airplane's weight (gravitational force
on it).
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What two forces keep the universe moving and attracts objects toward each other?
Looking at the Macro Level Universe (large objects): 1. Gravity 2. Magnetism and in that order of effectiveness.
What happens when an airplane takes off?
There are four basic forces acting on the airplane. First is GRAVITY, which pulls the airplane down. The second is THRUST, the power of the plane's engines; this can be the force of the propeller, or the jet engine. The third force is DRAG; as the airplane moves through the air, the air DRAGS the airplane back to slow it down. THRUST counteracts DRAG. The fourth force is LIFT. The shape of the airplane's wing forces the air to travel a little faster over the top of the wing than over the bottom of the wing. The air moving sideways along the surface of the wing causes lower pressure, so the faster air generates lower air pressure on the top of the wing, and higher pressure on the bottom. The higher pressure on the bottom provides LIFT, which pushes the airplane up. So the higher the THRUST, the greater the LIFT, so as the pilot spins up the engines, the plane goes faster and faster (opposing the DRAG) until the LIFT exceeds the force of GRAVITY. And the airplane flies. In landing, the pilot throttles back the engine, decreasing the THRUST, which causes lower LIFT, and GRAVITY pulls the airplane down. It's a delicate balance; we want to keep all these forces in balance until the wheels are on the ground, at which time the pilot cuts the engines and the THRUST, and allows DRAG and GRAVITY to take over.
How do forces acting on an object?
If forces on an object are unbalanced, the object will accelerate or decelerate. If forces on an object are balanced, the object will stay still or keep moving with the same velocity.
What keeps the airplane from rolling unexpectedly?
On the tarmac, there are triangular blocks that are placed in front and behind each wheel of the airplane, called wheel chocks. In the air, a steady hand on the control stick or column, plus a properly running engine and functioning flaps and ailerons also help keep the airplane from rolling unexpectedly.
What is the relationship between altitude and air pressure to explain why rescue helicopters have a difficult time flying at altitude over 6000m.?
The higher you are from the Earth's surface - the lower the air pressure is. Helicopters are heavy machines - requiring a huge amount of effort from the rotor blades to keep it airborn. The lower the air-pressure, the harder the rotors have to work to keep the craft flying.
What forces act on an airplane to keep it at level altitude?
There are multiple forces which act on an aircraft, Lift, Gravity, Thrust and Drag, all would come into account when an aircraft is at altitude. If you wanted to get more specific, you could say gravity and lift control the vertical movement of an aircraft, but are not attainable without thrust.
What are the forces that cause an airplane to fly?
Gravity, force and lift are all forces that cause an airplane to fly. There are more forces depending on what time of airplane is in flight. For example the forces used to keep a comerical jet as to a fighter or military jet. As there are many forces the same the proportion is different there for the air flow if different on each airplane.
What is the trimmed condition of an airplane?
The trimmed condition of an aircraft means that with constant power and no control inputs, the aircraft will fly straight and level (no climbing or descending). Trimming an aircraft means to configure the aircraft to equalize positive and negative forces on the lifting surfaces. An elevator trim control (a small wheel or switch) allows the pilot to move a small tab on the trailing edge of the elevator. The position of this tab (up or down), will alter the airflow just enough to balance the lift and weight forces and keep the airplane flying level without any input from the pilot. Some aircraft also have rudder trim to counter yaw created by engine torque at different power settings. If an airplane is not trimmed correctly, it is not being flown efficiently, and the pilot is either constantly pulling back on or pushing in on the control stick/yoke/wheel to keep the aircraft at a steady altitude.
What do you do to get an airplane to fly straight?
You keep the rudder straight.
How do you get an airplane to fly straight?
You keep the rudder centralised.
What two forces keep an airplane in the sky?
Lift, caused by one air stream flowing over the wing, and another flowing under it, that produces lift, and drag, or the resistance of the air to anything moving through it.
Why you have flight level in aviation?
Flight levels exist in aviation to make high altitude flying easier on pilots and controllers. First, some background. Since the altimeter uses atmospheric pressure to measure altitude, weather conditions can effect the reading on an altimeter. For example, if a high pressure system comes in, the altimeter in the aircraft would read lower than you actually are. For that reason, whenever a pilot gets in an airplane, he has to set the altimeter to the correct atmospheric pressure. As the pilot flies, Air Traffic Control will give him updated altimeter settings for the area he is in. However, once you get high enough, your actual altitude doesn't really matter; you only need to know altitude so ATC can keep you separated from other aircraft. For that reason, upon passing 18000 feet, all pilots reset their altimeter to the standard setting of 29.92 inches Hg. This relieves controllers and pilots from constantly recalibrating their altimeters, while still keeping aircraft separated. The distinction between an altitude measured by local altimeter settings versus the standard setting is "Flight Level". Any altitude below 18000 ft will be given by ATC as "feet" (exe. "Climb and maintain one-one thousand feet"); where any altitude above 18000 ft will be given as a flight level (exe. "Climb and maintain flight level two-six-zero). Flight level numbers are given in feet times 100, so FL 260 would be the equivalent of 26000 ft.
Why have airplanes have two windows?
To keep the temperature inside the airplane nice.
Why do solid keeps their shape?
Solids keep their shape because they are composed of elements and/or molecules which are chemically bound to each other by electrostatic forces operating on a submicroscopic level.
Why does a solid have an definite shape?
By definition - that's what makes it a solid.At the atomic or molecular level, the forces between particles (atoms or molecules) are strong enough to keep them in place.
Why the color of bees change from red to black as altitude increases?
As altitude increases the temperature decreases. In order to keep warm high altitude bees have developed a black colour which absorbs more sunlight and keeps them warmer.
What are the forces that keep objects in orbit and how are these forces affected by distance?
The forces are gravitational forces. They become weaker with distance and mass reduction
