Is an aircraft in steady flight an inertial frame or non inertial frame?
Answer. Answer: Steady flight is defined as flight where the aircraft’s linear and angular velocity vectors are constant in a body-fixed reference frame such as the body frame or wind frame.
What is steady level flight?
Steady flight is what pilots call a flight with no acceleration. Lift, Weight, Drag and Thrust are balanced, and the plane is neither acceleraing nor deceleraing. … Steady, level flight is when a plane flies at a constant velocity along a level trajectory (parallel to the earth).
What is meant by steady straight and level flight of an aircraft?
Forces acting on an airplane in steady level longitudinal flight, also known as straight and level flight, with a very small angle of attack. In steady level longitudinal flight, thrust counterbalances drag and lift supports the aircraft’s weight. Lift and drag are components of the aerodynamic force.
Which of the following is correct for steady level flight?
3. Which of the following is correct for steady level flight? Explanation: In steady level flight, flight path angle or climb angle is zero. Hence, conventional equation of motion reduces to the thrust T = Drag D.
Is Earth an inertial frame of reference?
The surface of the Earth is not, rigorously speaking, an inertial frame of reference. Objects at rest relative to Earth’s surface are actually subject to a series of inertial effects, like the ficticious forces (Coriolis, centrifugal etc.) because of Earth’s rotation, precession and other kinds of acceleration.
What are the general equations of motion for an airplane in translational flight?
The equations of motion are composed of translational (force) equations (F = ma) and rotational (moment) equations (M = Iα) and are called the six degree of freedom (6DOF) equations of motion.
What is straight and level flight?
Straight and level flight is flight in which a constant heading and altitude are maintained. Used during cross-countries when flying from point A to point B. Accomplished by making immediate and measured corrections for deviations.
What happens if lift is less than weight?
Assuming a straight and level flight, lift must be equal to weight and drag must be equal to thrust. This is what happens if this equilibrium is violated: If lift becomes greater than weight, then the plane will accelerate upward. If the weight is greater than the lift, then the plane will accelerate downward.
What force makes an airplane turn?
The horizontal component of lift is the force that pulls the aircraft from a straight flight path to make it turn. Centrifugal force is the “equal and opposite reaction” of the aircraft to the change in direction and acts equal and opposite to the horizontal component of lift.
What keeps a plane level?
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.
What happens when the four forces are not in balance?
What happens when the four forces are not in balance? The aircraft accelerates in the direction of the largest force.
What is aircraft performance?
A: Aircraft performance is a measurement of how well the plane flies. Many factors affect how the plane flies: its weight, the atmospheric conditions, pressure, temperature, humidity, even the runway at takeoff. Aircraft performance will tell you the speeds the plane can hope to acheive in different conditions.
What is minimum drag?
There is an EAS for minimum drag (VMD) and it is where parasite drag and induced drag are equal in size. Since in level flight lift is constant, VMD must also be the speed for the best ratio of lift over drag. VMD is the speed for minimum fuel consumption (max endurance) in a jet aircraft.
How is aircraft speed calculated?
The knot is the standard unit for measuring the speed of an aircraft and it is equal to one nautical mile per hour. It is defined as follows in SI: 1 international knot = 1 nautical mile per hour = 1.852 km/hr exactly = 1.151 miles/hr approx. = 0.514 m/sec approx.
What is the minimum thrust required?
Consequently we can see that the minimum thrust required occurs when L/D is a maximum. Again, since L = W, the maximum value of L/D occurs when drag is a minimum. Hence the minimum thrust required occurs at the minimum drag flight condition which is the same as the maximum L/D flight condition.