Aerodynamics, Assembly, and Rigging Questions and Answers Latest Update 100% Pass

Aerodynamics, Assembly, and Rigging Questions and Answers Latest Update 100% Pass Why do aircraft use spoilers? To reduce lift and increase drag What force must be greater than weight for an aircraft to climb? Lift What is the result of moving the center of gravity too far forward? The aircraft becomes nose-heavy and difficult to control What happens when an aircraft’s center of gravity is too far aft? The aircraft becomes unstable and may pitch uncontrollably Why are aircraft wings tapered? To reduce drag and improve efficiency 2 What aerodynamic force resists forward motion? Drag Why do aircraft have a critical angle of attack? It is the point where airflow separates, causing a stall What is the main advantage of a high aspect ratio wing? It reduces induced drag How does increasing wing surface area affect lift? It increases lift What is the primary function of an aircraft’s wing? To generate lift What happens to air pressure as it moves over the top of a curved wing? It decreases 3 What is the purpose of an aircraft's horizontal stabilizer? To maintain pitch stability How does increasing the angle of attack affect lift? It increases lift up to the critical angle, then causes a stall What is the main function of ailerons? To control roll Why do airplanes have dihedral wings? To improve lateral stability What is induced drag? Drag caused by the production of lift What part of the aircraft controls yaw? The rudder 4 What is the main purpose of a trim tab? To reduce pilot workload by maintaining a set flight attitude Why do some aircraft have swept wings? To reduce drag at high speeds