Cuestionario de Vuelo

What are the secondary flight controls?

• Ailerons, rudder, elevator

• Flaps, leading edge devices, spoilers, and trim systems

• Stabilator and rudder trim only

• Landing gear and speed brakes

How is lift created?

• Only by the shape of the wing

• By Bernoulli’s principle alone

• By Newton’s 3rd law and Bernoulli’s principle

• By the engine thrust

Explain the different types of drag.

• Induced, Parasite (form, skin friction, interference)

• Parasite only

• Induced only

• Lift drag and weight drag

Form drag is caused by:

• Roughness of the surface

• Intersecting airstreams

• The shape of the aircraft and airflow around it

• Wingtip vortices

Skin friction drag is increased by:

• Smooth surfaces

• Rivets, dirt, or roughness

• Wingtip vortices

• High altitude

Interference drag is caused by:

• Differences in airstreams meeting (e.g., wing and fuselage junction)

• Shape of the fuselage

• Wingtip vortices

• Engine thrust

Induced drag is a byproduct of:

• Speed increase

• Lift

• Skin friction

• Form drag

What is the airspeed where induced and parasite drag meet?

• Vs – Stall speed

• Vne – Never exceed speed

• Vg – Best glide speed (L/D Max)

• Vx – Best angle of climb speed

What is camber? Can we change it?

• Thickness of the wing – cannot be changed

• Curvature of the wing – can be changed with flaps

• Angle between wing and fuselage – cannot be changed

• Shape of the fuselage – can be changed in flight

What is angle of incidence? Can we change it?

• Angle between wing chord line and fuselage – cannot be changed

• Curvature of the wing – can be changed

• Angle of attack – can be changed

• Bank angle – can be changed