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NORMAL LANDINGDescriptionApproach and landing with headwind or light wind, hard surface of sufficient length and no obstructions. ObjectiveTo teach techniques necessary for a normal landing. Elements· Clear the area · Choose forced landing area (should be runway) · Configure aircraft for pattern entry (C172RG: 18” Hg, 2500 RPM, 90 KIAS) · Select outside references (e.g. runway numbers) · Enter downwind, maintaining traffic pattern altitude (typically 1000’ AGL) · Configure aircraft for approach: CCGUMPS check: Cowl flaps closed, Carburetor heat on, Gas (fuel to both), Undercarriage (gear extended), Mixture (full rich), Propeller (full RPM), Switches (lights as necessary) · Abeam touchdown point, power and pitch for approach (C172RG: 15” Hg, 85 KIAS) · First notch of flaps (C172RG: 10º) · Coordinated turn to base (≤30° bank), when reference point is 45° behind the wing · On base: second notch of flaps, begin to slow for final (C172RG: 20º, 75 KIAS) · Clear area, then turn to final (≤30° bank) · On final: remaining flaps (C172RG: 30º) when runway is assured, CCGUMPS check · Select aim point (e.g. before runway numbers) · Adjust pitch and power to maintain normal approach speed and descent angle (C172RG: 65 KIAS) · Trim to relieve control pressures · Make sure feet are not on brakes · 10-20’ off ground: reduce throttle to idle · Gradually apply back pressure to pitch for landing attitude, attempting to fly just above runway (fly in ground effect) straight-and-level until passing aim point, then continue adjusting pitch for climb attitude just above horizon · Touchdown on main gear just above stalling speed · Maintain pitch attitude for aerodynamic braking · Gradually relax back pressure to lower nose wheel · Gentle braking as required
Include a discussion on performance charts and other landing scenarios. Keep one hand on throttle. Common Errors· Inadequate wind drift correction on the base leg · Overshooting or undershooting the turn onto final approach resulting in too steep or too shallow a turn onto final approach · Flat or skidding turns from base leg to final approach as a result of overshooting/inadequate wind drift correction · Poor coordination during turn from base to final approach · Failure to complete the landing checklist in a timely manner · Unstabilized approach · Failure to adequately compensate for flap extension · Poor trim technique on final approach · Attempting to maintain altitude or reach the runway using elevator alone · Focusing too close to the airplane resulting in a too high roundout · Focusing too far from the airplane resulting in a too low roundout · Touching down prior to attaining proper landing attitude · Failure to hold sufficient back-elevator pressure after touchdown · Excessive braking after touchdown ReferencesFAA-H-8083-3A Airplane Flying Handbook p. 8-1 This document is provided as is. It is intended for use by authorized instructors only. Please double-check all content before using. © 2008
Derek W Beck. Some Rights
Reserved.
Licensed
under a US Creative
Commons Attribution-Noncommercial-Share Alike. |
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