A.P. 4503D-P.N.
							 Pilots's Notes

				PART VI
		     FLIGHT PLANNING CHARTS
		                     AND
		             ILLUSTRATIONS

        98. Flight planning charts
            Description
       (i)  The flight planning charts show the range obtainable,
	    with and without drop tanks at various altitudes when
	    flying at
	    (a)  the optimum range speed and
	    (b)  the maximum continuous power setting, 93 per cent.
	    They also show the amount of fuel in lb. remaining at
	    any stage of a flight.
       (ii) In addition, the charts show in graphical form the climb	    
	    data (time to height, lb. fuel used and distance covered
	    shown in small circles) and in tabular form the descent
	    data (lb. fuel required, time of descent and the distance
	    covered).  As the descent data is common to all con-
	    figurations of the aircraft, it is presented on No. 1 chart
	    only.
       (iii)The climb shown on charts 1 and 3 is carried out at
	    97 per cent. r.p.m. and on charts 2 and 4 at 100 per cent.
	    r.p.m. and the speeds used are those quoted in para. 57.
	    The descent figures are shown for two types of descent
	    a fast one with air brakes out, and a slower one with air
	    brakes in.  Each flight should be planned to allow a land-
	    ing reserve of 500 lb. fuel to remain after the descent.
       (iv) On the charts, altitude is plotted vertically and "lb. fuel
	    remaining in the tanks" horizontally.  Distance lines are
	    drawn on the charts, each line representing a specific
	    distance, i.e., 100 miles, 200 miles, etc.
	    Unbroken distance lines relate to flights carried out at
	    the optimum range speed and the broken distance lines
	    to flights carried out at the max. continuous r.p.m. 93
	    per cent.

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