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When an aircraft is flying in straight and level flight at constant speed?
Equilibrium requires a constant airspeed and constant direction (the combination of these is velocity). A constant direction is maintained by the wings being level and the aeroplane in balance. Equilibrium is achieved when lift = weight and thrust = drag.
What controls altitude in straight and level flight?
Straight flight is maintained by keeping the wings level with ailerons and applying the necessary pressures on the rudder pedal to prevent yaw. If you allow the aircraft to bank it will begin to turn in direction of the lower wing.
Does a plane fly level?
Commercial aircraft typically fly between 31,000 and 38,000 feet — about 5.9 to 7.2 miles — high and usually reach their cruising altitudes in the first 10 minutes of a flight, according to Beckman. Planes can fly much higher than this altitude, but that can present safety issues.
What makes a flight a straight and level flight?
Straight-and-level flight is flight in which a constant heading and altitude are maintained. To flight straight and level (constant heading, selected altitude and airspeed) at various speeds within the full operational speed range of the aircraft. The combination of attitude and power to achieve performance.
How to change airspeed in straight and level flight?
To change airspeed at level flight without changing the altitude. Increase power. Lower the nose. Decrease power. Raise the nose. This plane has a pitch nose up but it could be in straight-and-level flight at reduced airspeed.
What does it mean to fly at a constant altitude?
A decrease in power will cause the aircraft to yaw to the right. Any tendency for the aircraft to yaw with power change should be anticipated and prevented by appropriate use of rudder. Level flight means flying at a constant altitude, not going up and down.
What happens to the air around an aircraft at high speed?
Compressibility (and to a lesser extent viscosity) is of paramount importance at speeds approaching the speed of sound. In these speed ranges, compressibility causes a change in the density of the air around an aircraft. During flight, a wing produces lift by accelerating the airflow over the upper surface.