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Principles of Flight - QT

Updated: Apr 20, 2021

Lesson Quicktakes cover the items that should be memorized from each of the wifiCFI Lessons. They do not cover all of the lesson details in-depth.


FOUR FORCES OF FLIGHT:

  1. Lift

  2. Weight

  3. Thrust

  4. Drag


LEFT TURNING TENDENCIES:

  1. P-Factor

  2. Torque

  3. Gyroscopic Precession

  4. Spiraling Slipstream


PRODUCING LIFT:

  • Bernoulli’s Principle = An increase in the speed of a fluid (air) is accompanied by a decrease in pressure.

  • Downwash Principle = Air deflected off the trailing edge of the wing.


TYPES OF DRAG:

  • Parasite Drag = No way functions in the aid of flight.

  • Form Drag = Shape of the aircraft.

  • Interference Drag = Intersections of aircraft components.

  • Skin Friction Drag = Skin is not perfectly smooth.

  • Induced Drag = It is a by-product of lift.


WINGTIP VORTICES:


WAKE TURBULENCE:

  • Avoidance on Takeoff = Rotate prior to the preceding aircraft. Stay above preceding aircraft’s flight path or side-step.

  • Avoidance on Landing = Stay above preceding aircraft’s flight path. Land further down the runway.


LIFT/DRAG RATIO:


GROUND EFFECT:


AIRPLANE AXES:


AIRCRAFT STABILITY:

Static Stability:


Dynamic Stability:


FORCES IN TURNS:


SLIPPING AND SKIDDING TURNS:

Remember to "step on the ball."


ADVERSE YAW:

Remember to "step on the ball."


LOAD FACTOR:


THE VG DIAGRAM:


VA (MANEUVERING SPEED)

  • Below Va Speed = The aircraft will stall.

  • Above Va Speed = The aircraft may suffer structural damage.

  • Heavier Aircraft = Awarded a Higher Maneuvering Speed.

  • Lighter Aircraft = Suffer a Lower Maneuvering Speed.

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