Aeronautical Engineering interview questions and answers - part 5

Part 1   Part 2   Part 3   Part 4   Part 5   Part 6 What are the steps required to solve the problems of aircraft flying high and at very large speed? There are various steps required to solve the problems of aircraft flying high and at very large speed are as follows: • Build stiff wings that allow and provide the resistance to torsional diversion beyond the maximum speed of the aircraft. • Use two sets of ailerons and one outboard pair that can be operated at low speeds. • Use of one inboard pair that can be used to operate on high speeds, this will have less twisting impact when the ailerons are positioned outboard. • Use spoilers that can be positioned independently or can be paired with ailerons. These reduce the lift on the down going wing by interrupting the airflow over the top surface. What are the functions performed by rudder? The rudder is involved in providing the movement to the ports that gives a lift force to starboard. This will allow the aircraft to turn and uses the ailerons effectively to bank the aircraft by minimum use of rudder. The functions performed by rudder are as follows: • It is used with different applications that are involved in taking off and landing to keep aircraft straight. • Providing assistance that is, limited only for the aircraft to turn correctly. • Used in applications during spin to reduce the roll rate of the aircraft and there are some applications that provides low speeds and high angles to allow the raising of the wings. What are the criteria need to be followed for an aircraft to be longitudinal statically stable? The criteria that are required for an aircraft to be longitudinal statically stable, is: • To have a nose-down pitching disturbance that is used to produce the aerodynamics forces to give a nose-up restoring moment. • This restoring moment that is produced should be large enough to return the aircraft to its original position after the disturbance. • The requirements are met by using the tail-plain that is horizontal stabilizer used to provide the stability to the aircraft. Part 1   Part 2   Part 3   Part 4   Part 5   Part 6 Write your comment - Share Knowledge and Experience