IF Turns

Instrument Flying


Review :   

Link: http://www.studyflight.com/turns/
  • Standard rate one turn is 3 degrees per second.
  • The standart rate one turn it’s in relation with airspeed and angle of bank.
  • The lower the airspeed at a given angle of bank:
    • The higher rate of turn.
    • The smaller the radius of turn.
  • The rule of thumb to determine approximate angle of bank required for a standard rate turn is to divide your airspeed by 10 and add one half the result.
  • Example:
    • 120 kt:10 = 12.
    • 12:2=6
    • 12+6=18
    • At 120 kt the approximate angle of bank required for a standard rate turn is 18°.
  • When you return from a turn to straight and level flight you have ton anticipate the roll out.
  • The amount of lead for the roll out from the turn is approximately ½ angle of bank.
  • Exemple:
    • If you held 18° of bank in turn  18:2=9  you should begin your roll out 9° before the desired heading.
  • A small amount of pitch adjustment may be required during the turn entry and recovery

Scan technique: Turn

  • What information do I need ?
    • Altitude, heading.
  • Which instrument give me the needed?
    • Attitude indicator
    • Heading indicator.
    • Alitmeter.
  • Is the Information reliable ?
    • Confirm the reliability of the heading indicator by referring to the turn coordinator and the magnetic compass.
    • Confirm the reliability of the altimeter by referring to the airspeed indicator and the vertical speed indicator.
Primary scan (red line) / Secondary scan (yellow line)

Review questions

  • What is the rule of thumb used to calculate when to start your roll out?
  • What is the scan for Turn?
  • How many degrees per second is a rate one turn?