To: (Separate email addresses with commas)
From: (Your email address)
Message: (Optional)
Send
Cancel

Thanks!

Close

Quiz: These 6 Aerodynamic Designs Are For...

Let's see what you know!


  1. 1) What does wing dihedral do for your aircraft?
    Boldmethod

    If one of the wings is lowered, the aircraft initially starts slipping toward the lowered wing (considering no rudder inputs). This causes the low wing to fly at a higher angle-of-attack. At the same time, airflow strikes the side of the fuselage. This raises the airplane back to a level attitude.

    If one of the wings is lowered, the aircraft initially starts slipping toward the lowered wing (considering no rudder inputs). This causes the low wing to fly at a higher angle-of-attack. At the same time, airflow strikes the side of the fuselage. This raises the airplane back to a level attitude.

    1. 1-1
      Unchecked Checked
    2. 1-2
      Unchecked Checked
    1. 1-3
      Unchecked Checked
    2. 1-4
      Unchecked Checked
  2. 2) What does wing washout do for your aircraft?
    Wikimedia

    The angle-of-incidence of the root is higher than the angle-of-incidence at the wing tips. This causes the wing root to stall first, preserving aileron effectiveness during a stall.

    The angle-of-incidence of the root is higher than the angle-of-incidence at the wing tips. This causes the wing root to stall first, preserving aileron effectiveness during a stall.

    1. 2-1
      Unchecked Checked
    2. 2-2
      Unchecked Checked
    1. 2-3
      Unchecked Checked
    2. 2-4
      Unchecked Checked
  3. 3) Elevator horns are used to...
    Mark Jones Jr.

    The elevator horns are located in front of the control hinge, so when they are deflected into the relative wind, they help deflect the elevator, reducing control pressures experienced by the pilot.

    The elevator horns are located in front of the control hinge, so when they are deflected into the relative wind, they help deflect the elevator, reducing control pressures experienced by the pilot.

    1. 3-1
      Unchecked Checked
    2. 3-2
      Unchecked Checked
    1. 3-3
      Unchecked Checked
    2. 3-4
      Unchecked Checked
  4. 4) Differential Frise ailerons will...
    Cory W. Watts

    When you bank the aircraft using the ailerons, the downward deflected aileron creates more drag than the upward deflected aileron, causing a yawing moment to occur in the opposite direction of the roll. To reduce this, Differential Frise ailerons expose their leading edge as they are deflected upwards. In addition, the upward aileron deflects more than the downward aileron. This helps equalize the drag created by the downward deflected aileron, reducing adverse yaw.

    When you bank the aircraft using the ailerons, the downward deflected aileron creates more drag than the upward deflected aileron, causing a yawing moment to occur in the opposite direction of the roll. To reduce this, Differential Frise ailerons expose their leading edge as they are deflected upwards. In addition, the upward aileron deflects more than the downward aileron. This helps equalize the drag created by the downward deflected aileron, reducing adverse yaw.

    1. 4-1
      Unchecked Checked
    2. 4-2
      Unchecked Checked
    1. 4-3
      Unchecked Checked
    2. 4-4
      Unchecked Checked
  5. 5) Swept wings...
    Oliver Holzbauer

    When you sweep the wings, the relative air "sees" less of the actual chordwise component and increases spanwise flow. This means that the air doesn't accelerate as quickly over the top of the airfoil. This essentially delays the critical Mach number, allowing you to fly at a higher Mach number, and delays supersonic flow across the wing.

    When you sweep the wings, the relative air "sees" less of the actual chordwise component and increases spanwise flow. This means that the air doesn't accelerate as quickly over the top of the airfoil. This essentially delays the critical Mach number, allowing you to fly at a higher Mach number, and delays supersonic flow across the wing.

    1. 5-1
      Unchecked Checked
    2. 5-2
      Unchecked Checked
    1. 5-3
      Unchecked Checked
    2. 5-4
      Unchecked Checked
  6. 6) Leading edge slats...
    egmboeingpilot

    When slats are deployed, they allow high pressure air from beneath the wing to pass through the slat, and over the top of the wing. This energizes the boundary layer, delaying airflow separation. This allows the aircraft to fly at slower speeds due to increased lift and reduced airflow separation.

    When slats are deployed, they allow high pressure air from beneath the wing to pass through the slat, and over the top of the wing. This energizes the boundary layer, delaying airflow separation. This allows the aircraft to fly at slower speeds due to increased lift and reduced airflow separation.

    1. 6-1
      Unchecked Checked
    2. 6-2
      Unchecked Checked
    1. 6-3
      Unchecked Checked
    2. 6-4
      Unchecked Checked

You've got some studying to do...

You scored % But look at what you just learned!

Share on Facebook Share on Twitter
Pic

Nice work.

You scored %. Looks like you have a pretty good handle on aerodynamics.

Share on Facebook Share on Twitter
Pic

Nailed it!

You scored %. Looks like you have a good handle on aerodynamics.

Share on Facebook Share on Twitter
Pic

Corey Komarec

Corey is a commercial aviation student and commercial pilot with multi-engine and instrument ratings who attends the John D. Odegard School of Aerospace Sciences at the University of North Dakota. He has been flying since his junior year of high school and has since started his flight instructing training. You can reach him at corey@boldmethod.com.

Images Courtesy:

Recommended Stories

Latest Stories

    Load More
    Share on Facebook Share on Twitter Share via Email