Principles of flight Around a wing cross section airflow speed is faster on ? MCQ > piloting

Principles of flight Two forms of airflow exist around a body ?

Principles of flight two forms of airflow exist around a body The laminar flow the turbulent flow.

Aerofoils All other factors of importance remaining constant when speed is increased ?

Aerofoils all other factors of importance remaining constant when speed increased The laminar flow the turbulent flow.

Aerofoils at constant angle of attack a fixed wing aircraft if speed decreased The laminar flow the turbulent flow.

Aerofoils at constant speed if angle of attack of a fixed wing airplane increased Lift increases until critical angle of attack exceed then lift decreases.

Aerofoils the angle between relative airflow and chord line Lift increases until critical angle of attack exceed then lift decreases.

Aerofoils the angle of attack as in case of a aircraft wing defined as The angle between chord line relative airflow.

Aerofoils for a fixed wing aircraft airplane or glider from straight and level flight to a steady horizontal turn lift must The angle between chord line relative airflow.

Aerofoils for a fixed wing aircraft airplane or glider standard flight envelope flying at low speed means flying At large angle of attack.

Aerofoils for a fixed wing aircraft airplane or glider standard flight envelope flying at high speed means flying At small angle of attack.

Aerofoils around a wing cross section aerodynamic lift generated At 75 due to reduced pressure on upper wing surface.

Aerofoils all other factors of importance remaining constant when angle of attack increased At 75 due to reduced pressure on upper wing surface.

Stability the assistance control system stabilisation attitude altitude and guidance systems on a multi rotor aircraft done At 75 due to reduced pressure on upper wing surface.

Stability the movement of an aircraft about longitudinal axis known as At 75 due to reduced pressure on upper wing surface.

Stability for a fixed wing aircraft airplane or glider manoeuvrability around lateral axis pitch Depends on load distribution.

Stability for all fixed wing aircraft model you are able to change manoeuvrability onto lateral axis pitch acting on The center of gravity location.

On a small fixed wing drone aircraft or glider forward displacement of centre of gravity will have effect of Increase stall speed.

A fixed wing drone with a mass of 10 kg performing a co ordinated level turn at a bank angle of 60° it will have an equivalent weight of Increase stall speed.

Choose statement that best describes stability concept of an aircraft A stable aircraft tends to naturally resume its attitude after a disturbance. Stability the inherent quality of an aircraft to correct conditions that may disturb its equilibrium to return to or to continue on original flightpath it primarily an aircraft design characteristic the flightpaths attitudes an aircraft flies are limited the aerodynamic characteristics of aircraft its propulsion system its structural strength these limitations indicate maximum performance maneuverability of aircraft if aircraft to provide maximum utility it must be safely controllable to full extent of these limits without exceeding pilot's strength or requiring exceptional flying ability if an aircraft to fly straight steady along any arbitrary flightpath forces acting on it must be in static equilibrium the reaction of any body when its equilibrium disturbed referred to as stability positive static stability initial tendency of aircraft to return to original state of equilibrium after being disturbed.

The load factor on wings may be increased anytime The aircraft subjected to maneuvers other than straight level flight. In aerodynamics maximum load factor (at given bank angle) a proportion between lift weight has a trigonometric relationship the load factor measured in gs (acceleration of gravity) a unit of force equal to force exerted gravity on a body at rest indicates force to which a body subjected when it accelerated any force applied to an aircraft to deflect its flight from a straight line produces a stress on its structure the amount of this force the load factor while a course in aerodynamics not a prerequisite obtaining a remote pilot certificate competent pilot should have a solid understanding of forces that act on aircraft advantageous use of these forces the operating limitations of aircraft being flown for example a load factor of 3 means total load on an aircraft's structure three times its weight since load factors are expressed in terms of gs a load factor of 3 may be spoken of as 3 gs or a load factor of 4 as 4 gs with structural design of aircraft planned to withstand only a certain amount of overload a knowledge of load factors has become essential all pilots load factors are important two reasons 1 it possible a pilot to impose a dangerous overload on aircraft structures 2 an increased load factor increases stalling speed makes stalls possible at seemingly safe flight speeds.

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