PILOT OPERATING INSTRUCTIONS (Page 14 of 16 pages)
FLIGHT OPERATION CHARTS, TABLES, CURVES AND DIAGRAMS
FLIGHT PLANNING
The following outline may be used as a guide to assist personnel in the use of the FLIGHT OPERATION
INSTRUCTION CHART for flight planning purposes.
(a) If the fli
9
ht plan calls for a continuous flight where the desired cruising power and air speed
are reasonably constant after take-off and climb to 5,000 feet, the fuel required and flight time
may be computed as a "single section flight".
(1) Within the limits of the airplane, the fuel required and flying time for a given mission
depends largely upon the speed desired. With all other factors remaining equal in the airplane)
speed is obtained at a sacrifice of range) and range is obtained at a sacrifice of speed. The
speed is usually determined after considering the urgency of the flight plotted against the range
required. The time of take-off is adjusted so as to have the flight arrive at its destination at the
predetermined time.
Fuel should be used in the following sequence:
I. Reserve tanks for first 15 minutes.
2. External tanks
3. Outer wing tanks (if installed).
4. Main tanks
5. Reserve tanks.
(2) Select the FLIGHT OPERATION INSTP~CTION CHART corresponding to the weight
and external load items of the airplane. Locate the largest figure entered under gph (gallons per
hour) in column 1 on the lower half of the chart. Multiply this figure by the number and/or
fraction of hours desired for reserve fuel. Add the resulting figure to the number or gallons set
forth in footnote No. 2., arid subtract the total from the amount of fuel in the airplane prior to
starting the engines. The figure obtained as a result of this computation will represent the
amount qf gasoline available and applicable for flight planning purposes on the "Range ii. Air
Miles" section of the flight
OPERATION INSTRUCTION CHART
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