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Instructor » Mountain Flying » Valley Turns

Valley Turns

  • Use of full width, anticipating need for 360° turn
  • Minimise angle of bank to minimise Vs increase
  • Lower airspeed to reduce turn radius
  • Use of the poor visibility configuration
  • Reduced flap to maintain performance i.e. 10° flap as opposed to 20°
  • Need for power to combat drag
  • Check turns before valley narrows
  • Large valley - position anywhere right of centre
  • Confined valley - any need to move over to make turn means one is not correctly positioned (Human Factors 5 - 7.5 seconds reaction time)
  • Effect of sudden shadow/sun effects
  • Clean screen
  • Steep gliding turns and effects of changing horizon, narrowing valley
  • Roll out position - never in middle of valley
  • Always positioned to anticipate not react
  • If on wrong side…easy decision to change sides, if in middle potential for indecision and lack of space
  • If airspeed decays with full power, lower nose to convert height to airspeed
  • Emphasise "caution flying up a valley you haven't previously flown down" philosophy