Tailwheel Ground School

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Tailwheel Ground School
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Tonights Overview

• Basic Tailwheel Aerodynamics
• Taxing
• Takeoff Techniques
• Landing Techniques
• Are we airworthy to go flying?
• Questions

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Basic Tailwheel Aerodynamics Lateral (Roll)
Stability

• Does a stable airplane roll away from or into the
  wind???
• Dihedral Effect
• Dihedral Angle
• High wing vs. Low wing
• Swept of the wings

Dihedral Angle
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Basic Tailwheel Aerodynamics Directional (Yaw)
Stability

• Does a stable airplane yaw into or away from the
  wind???
• Weathervane
• CG Location
• Adverse Yaw

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Weathervane (If you do not understand this well
enough to teach it your grandma and have her
understand it, you have no business flying a
tailwheel airplane. I am serious)
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Weathervane
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CG Location (If you do not understand this well
enough to teach it your grandma and have her
understand it, you have no business flying a
tailwheel airplane. I am serious)
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Adverse Yaw
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Taxing

• Stick into wind! Or away from?
• Stick back or forward?
• Why not neutral?
• Taxi Speed
• Usage of brakes

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Taxing

• S Turns
• Strong Crosswinds
• Unlocking and locking of the tailwheel

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Takeoff Techniques

• Normal
• Keep stick back until you sure you will lift the
  tail
• Gyroscopic Precession
• X-Wind
• Stick ALWAYS INTO the wind on takeoff!!!
• Common errors

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Landing Techniques

• Techniques
• Three Point Landings
• Wheel Landings
• One Wheel Go-Arounds
• MAKE SURE YOUR FEET ARENT ON THE BRAKES!!!
• http//www.youtube.com/watch?vo4oOhumKco4

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Crosswind Landing Techniques

• How do you tell where the winds are from with no
  ATIS/AWOS or windsock info?
• DO NOT touch down sideloaded!
• Go around if you arent aligned with the runway
• The best pilots use their superior decision
  making skills in order to avoid having to use
  their superior piloting skills
• How are the controls positioned?
• Which wheel touches down first?

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Three Point Landings

• Attitude
• Stick full back and keep it there!
• Be ready to dance on the rudders
• Common Errors

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Wheel Landings

• Just like in this picture!!!

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Wheel Landings

• Pattern difference AS and Power
• What is the acceptable order for which the wheels
  touch down?
• How much to stick forward?
• Ready to dance? Rudder more effective!
• When to bring stick full back?
• Common Errors

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One Wheel Go Around

• Like a wheel landing yet
• AS and power diff.
• Controls diff.
• S Turns??
• Common Errors

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Are we legal to go flying?

• What to check
• Annual
• 100 hrs
• ADs
• Where are they located?
• When in doubt?

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Securing The Cub

• Write tach times down in logbook
• Tie Down/Chock wheels
• Disconnect the battery and charge it
• Check in on MyFBO (pay)
• Clean any residual of oil around cowling and
  windshield
• Wipe down all leading edge surfaces
• If tied down outside
• Tie the stick back with the seatbelt
• Close windows and doors
• Put on Proplock

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Quiz time!

• A pilot performs a takeoff roll in the Cub with
  no crosswind corrections. The wind is strong and
  from the left. Please fill in the following
  blanks The Cub will start to turn _?_ (away
  from, into) the wind due to _?_ (dihedral effect,
  weather vain stability, scuff effect). This turn
  is due to lack of proper _?_ (elevator, rudder,
  aileron) control.
• As a result, the Cub will be on the _?_ (upwind,
  downwind) side of the centerline. The proper
  placement of the ailerons when on this side of
  the centerline would be _?_ (towards the
  centerline, away from the centerline, into the
  wind, downwind). The effect that can further
  aggravate this yawing situation is _?_ (dihedral
  effect, adverse yaw, spiraling slipstream). The
  airplane will tend to roll _?_ (away from,
  towards) the wind due to _?_ (dihedral effect,
  adverse yaw, weather vain stability).
• Having the down wind wing down in a tailwheel
  airplane is _?_ (stable, unstable). The proper
  correction for this situation would be _?_
  (downwind, upwind) rudder and ailerons _?_
  (towards the centerline, away from the
  centerline, into the wind, downwind). The worst
  thing that can be done in this situation is to
  apply _?_ (downwind, into the wind) ailerons.

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Questions?