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
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