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Understanding Propeller Torque and P-Factor: Difference between revisions
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Understanding Propeller Torque and P-Factor (view source)
Revision as of 05:01, 29 June 2010
, 29 June 2010→Prop wash: vert-tail above prop axis
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Paul Richter (talk | contribs) (→Prop wash: vert-tail above prop axis) |
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==Prop wash== | ==Prop wash== | ||
A propeller pushes air not just horizontally to the back, but more in a twisting helix around the [http://en.wikipedia.org/wiki/Fuselage fuselage] (clockwise as seen from the cockpit). As the air whirls around the fuselage it pushes against the left side of the vertical tail, causing the plane to yaw to the left. The prop wash effect is at its greatest when the airflow is flowing more around the fuselage than along it, i.e., at high power and low airspeed, which is the situation when starting the takeoff run. | A propeller pushes air not just horizontally to the back, but more in a twisting helix around the [http://en.wikipedia.org/wiki/Fuselage fuselage] (clockwise as seen from the cockpit). As the air whirls around the fuselage it pushes against the left side of the vertical tail (assuming that the vertical tail is located above the propeller's axis), causing the plane to yaw to the left. The prop wash effect is at its greatest when the airflow is flowing more around the fuselage than along it, i.e., at high power and low airspeed, which is the situation when starting the takeoff run. | ||
==Propeller Torque Effect== | ==Propeller Torque Effect== | ||