skykrawler Posted December 4, 2022 Report Posted December 4, 2022 And the gyroscopic affect is often omitted in the analysis. It comes in to play when you flare to land. Imagine the affect on yaw when in a careless power on stall the nose drops suddenly 20 or more degrees. PARE is for spin recovery. I think stall recovery is elevator first. If you dropped a wing, you stalled it. The skid/slip indicator is not just a 'level' - it indicating a force.
brndiar Posted December 4, 2022 Report Posted December 4, 2022 2 hours ago, rbp said: did you not read my correction? anyway, it has nothing to do with the way the components are linked (prop, crank, mount), and everything to do with vector arithmetic Gyroscopic Effect (gyroscopic precession): ...Whenn axis of a propeller (gyroscope) is pitched or yawed, the force induced into propeller is precessed and returned to the airframe at 90 degree form original direction in the direction of rotation, which practically means that: - if your input is a pitching motion, you get back a yaw effect -if your input is a yawing motion, you get back a pitch effect Our MOONEYS have relatively small propellers, the forces are not great and the effects are seldom noticed. Effect has practiacall application in flying aerobatics figures. For an ordinary pilot (according to me) is gyto effect relevant in slow flight and high power scenarios with abrupt pitch or yaw inputs. Example (Lycoming): suddenly & energically pushing yoke close to stall speed (critical AoA) with the engine at high power you get a yaw to the left, wich could be a left spin entry..... By spinning to the left and full power there is pitching up effect, which leads to flattening of the spin... Lifting the tail (taildragger wiht Lycoming) in the start phase causes momentary extra yawing (turning) moment to the left, extra right rudder is required.... P.s. do not understand how is the above picture related to gyro effect. Lg, M PPL only, Aerobatics rating 1
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