Cessna 17273274 Pilot Operating Handbook page 76

SECTION 5
PERFORMANCE
With this factor included, the fuel estimate would be calculated as follows:
Fuel to climb, standard temperature
Increase due to non-standa. r d temperature
(1.3 16%)
x
Corrected fuel to climb
Using a similar procedure for the distance to climb results in 10 nautical
miles.
The resultant cruise distance is:
Total distance
Climb distance
Cruise distance
With an expected 10 knot headwind, the ground speed for cruise is
predicted to be:
Therefore, the time required for the cruise portion of the trip is:
The fuel required for cruise is:
3.0 hours
The total estimated fuel required is as follows:
Engine start, taxi, and takeoff
Climb
Cruise
Total fuel required
Once the flight is underway, ground speed checks will provide a more
accurate basis for estimating the time enroute and the corresponding fuel
required to complete the trip with ample reserve.
LANDING
A procedure similar to takeoff should be used for estimating the
landing distance at the destination airport. Figure 5-10 presents landing
5-6
114
-10
i04
Knots
.filQ. Nautical Miles _ 3 0 H
- ·
104 Knots
7.1 gallons/hour= 21.3 Gallons
x
CESSNA
MODEL 172N
1.3
�
1.5 Gallons
320
.:lQ
310 Nautical Miles
ours
1.1
1.5
21.3
23.9
Gallons
1 July 1979