航空 发表于 2010-9-9 09:09:11

RMIT飞行训练课件－COMPASSES 罗盘指南针

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航空 发表于 2010-9-9 09:09:28

<P>COMPASSES<BR>Aim<BR>• To understand the principles and<BR>considerations of compass operations.<BR>Application<BR>• Navigation flying<BR>• When DG fails<BR>Overview<BR>• Definitions<BR>• Principles<BR>– Compass Components<BR>• Considerations<BR>– Acceleration Errors<BR>– Turning Errors<BR>• Airmanship<BR>• Review<BR>Definitions<BR>• Earth’s Magnetic Field<BR>Definitions<BR>Simple Bar Magnet<BR>• a magnet freely suspended horizontally<BR>will swing so as its axis points roughly<BR>north/ south<BR>Definitions<BR>Magnetic Variation<BR>• the angular difference between the<BR>magnetic poles and true poles of the<BR>Earth.<BR>• Isogonal are lines that join places of same<BR>magnetic variation.<BR>• Agonic is the line that joins places of zero<BR>magnetic variation.</P>
<P>Definitions<BR>• VARIATION WEST, MAGNETIC BEST<BR>• VARIATION EAST, MAGNETIC LEAST<BR>Principles<BR>• Aircraft turns around magnet which is<BR>aligned north / south<BR>090<BR>270<BR>360<BR>180<BR>Principles<BR>A direct reading magnetic compass is filled<BR>with a liquid which<BR>• supports its weight,<BR>• reduces friction, and<BR>• dampens oscillations<BR>Lubber line shows heading on compass<BR>card<BR>Principles<BR>Definitions<BR>• Deviation<BR>Considerations<BR>• Magnetic Dip<BR>Considerations<BR>• Minimising Dip<BR>Acceleration Errors<BR>• due to CoG displacement,<BR>• As aircraft accelerates, pivot point moves<BR>with the aircraft, but the magnet is left<BR>behind.<BR>Considerations<BR>South<BR>Accelerate<BR>North<BR>Decelerate<BR>090<BR>270<BR>360<BR>180<BR>Considerations<BR>Westerly Apparent turn to S Apparent turn to N<BR>Southerly None None<BR>Easterly Apparent turn to S Apparent turn to N<BR>Northerly None None<BR>HDG Acceleration Error Deceleration Error<BR>Considerations<BR>• Turning Errors<BR>340<BR>040<BR>340<BR>060<BR>040<BR>030<BR>330<BR>030<BR>310<BR>330<BR>Considerations<BR>• Turning Errors<BR>200<BR>160<BR>200<BR>170<BR>160<BR>150<BR>210<BR>150<BR>190<BR>210<BR>Considerations<BR>Overshoot<BR>North<BR>Undershoot<BR>South<BR>Airmanship<BR>• Always avoid placing ferrous materials<BR>near the compass<BR>• Apply SAND and ONUS rules where<BR>applicable<BR>• Always apply magnetic variation when<BR>flight planning<BR>• Always apply compass deviation<BR>Review<BR>• What is an Isogonal?<BR>• What is Magnetic Dip and How do we<BR>overcome it?<BR>• Acceleration Errors<BR>• Turning Errors</P>

猪也能飞 发表于 2013-10-28 19:21:36

感谢楼主万分感谢感谢万分

xy8701 发表于 2015-4-7 22:42:27

谢谢楼主，我正准备去RMIT读书
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