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  • Asymmetrical Loading of Propeller (P-factor) 👩‍✈️👨‍✈️‼️
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When an aircraft is flying with a high AOA, the “bite” of the downward moving blade is greater than the “bite” of the upward moving blade. This moves the center of thrust to the right of the prop disc area, causing a yawing moment toward the left around the vertical axis.
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🛫🛫🛫🛫🛫
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This asymmetric loading is caused by the resultant velocity, which is generated by the combination of the velocity of the propeller blade in its plane of rotation and the velocity of the air passing horizontally through the propeller disc. With the aircraft being flown at positive AOAs, the right (viewed from the rear) or downswinging blade, is passing through an area of resultant velocity, which is greater than that affecting the left or upswinging blade.
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🛫🛫🛫🛫🛫
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At a high angle of attack, the downward moving blade has a higher resultant velocity, creating more lift than the upward moving blade. This might be easier to visualize if the propeller shaft was mounted perpendicular to the ground (like a helicopter). If there were no air movement at all, except that generated by the propeller itself, identical sections of each blade would have the same airspeed. With air moving horizontally across this vertically mounted propeller, the blade proceeding forward into the flow of air has a higher airspeed than the blade retreating with the airflow (recall the 🚁 post). Thus, the blade proceeding into the horizontal airflow is creating more lift, or thrust, moving the center of thrust toward that blade.
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🛫🛫🛫🛫🛫
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To maintain positive control of the aircraft in all flight conditions, the pilot must apply the flight controls as necessary to compensate for these varying values.
  • Asymmetrical Loading of Propeller (P-factor) 👩‍✈️👨‍✈️‼️
    .
    When an aircraft is flying with a high AOA, the “bite” of the downward moving blade is greater than the “bite” of the upward moving blade. This moves the center of thrust to the right of the prop disc area, causing a yawing moment toward the left around the vertical axis.
    .
    🛫🛫🛫🛫🛫
    .
    This asymmetric loading is caused by the resultant velocity, which is generated by the combination of the velocity of the propeller blade in its plane of rotation and the velocity of the air passing horizontally through the propeller disc. With the aircraft being flown at positive AOAs, the right (viewed from the rear) or downswinging blade, is passing through an area of resultant velocity, which is greater than that affecting the left or upswinging blade.
    .
    🛫🛫🛫🛫🛫
    .
    At a high angle of attack, the downward moving blade has a higher resultant velocity, creating more lift than the upward moving blade. This might be easier to visualize if the propeller shaft was mounted perpendicular to the ground (like a helicopter). If there were no air movement at all, except that generated by the propeller itself, identical sections of each blade would have the same airspeed. With air moving horizontally across this vertically mounted propeller, the blade proceeding forward into the flow of air has a higher airspeed than the blade retreating with the airflow (recall the 🚁 post). Thus, the blade proceeding into the horizontal airflow is creating more lift, or thrust, moving the center of thrust toward that blade.
    .
    🛫🛫🛫🛫🛫
    .
    To maintain positive control of the aircraft in all flight conditions, the pilot must apply the flight controls as necessary to compensate for these varying values.
  • 4,602 25 16 July, 2019
  • Самая напряжённая часть полёта-посадка. Как шутят пилоты, если после посадки ты ушёл от самолета сам-это была хорошая посадка. Если ты ещё и можешь использовать этот самолёт на следующий день-это была прекрасная посадка. The most exciting part of flight is landing. The famous aviation joke is if you walk away yourself after landing, it was a good landing. If you can use this plane on the next day-it was a perfect landing. #aviationlovers #landing #cessna172 #pilotgirl #девушкапилот #авиация #цессна172 #ppl #privatpilot #частныйпилот
  • Самая напряжённая часть полёта-посадка. Как шутят пилоты, если после посадки ты ушёл от самолета сам-это была хорошая посадка. Если ты ещё и можешь использовать этот самолёт на следующий день-это была прекрасная посадка. The most exciting part of flight is landing. The famous aviation joke is if you walk away yourself after landing, it was a good landing. If you can use this plane on the next day-it was a perfect landing. #aviationlovers #landing #cessna172 #pilotgirl #девушкапилот #авиация #цессна172 #ppl #privatpilot #частныйпилот
  • 442 14 17 June, 2019

Latest Instagram Posts

  • I’ve always wanted to touch the sun. But I’m not high enough yet. I have to keep climbing up.  #avgeek #cessna172
  • I’ve always wanted to touch the sun. But I’m not high enough yet. I have to keep climbing up. #avgeek #cessna172
  • 13 0 13 hours ago
  • Ocean view from 2000 feet up! 🛫
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Fun little cross country trip yesterday despite a couple storms popping up. Had a short weather / food delay then flew back to DeLand over the beach.
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Definitely one of my favorite trips yet. This was also my first time landing at night which was amazing. Looking forward to more flights like these. 🌎🙌🏻
  • Ocean view from 2000 feet up! 🛫
    .
    Fun little cross country trip yesterday despite a couple storms popping up. Had a short weather / food delay then flew back to DeLand over the beach.
    .
    Definitely one of my favorite trips yet. This was also my first time landing at night which was amazing. Looking forward to more flights like these. 🌎🙌🏻
  • 82 9 16 hours ago
  • “I’m very discreet. I have no code of ethics. I will fly anyone, anywhere. Children, animals, old people, doesn’t matter. I just love flyin’.” — Rick & Morty, as told by @krombopulos_mitchell, and stolen by me.
  • “I’m very discreet. I have no code of ethics. I will fly anyone, anywhere. Children, animals, old people, doesn’t matter. I just love flyin’.” — Rick & Morty, as told by @krombopulos_mitchell, and stolen by me.
  • 129 5 17 July, 2019