CESSNA
MODEL 172S
The resultant cruise distance is:
Total distance
Climb distance
Cruise distance
SECTION 5
PERFORMANCE
360
-18
342 nm
. With an expected 10 knot headwind, the ground speed for cruise is
predicted to be:
-
-
-
117
-10
107 Knots
Therefore, the time required for the cruise portion of the trip is:
342 Nautical Miles
'=
3.2 Hours
, 107 Knots
The fuel- required for cruise is:
3.2 hours X 8.9 galionSlhour
=
28.5 Gallons
A 45-minute reserve requires:
45
60
X 8.9 gallons / hour
=
6.7 Gallons
The total estimated fuel required is as follows:
\
-
Engine start, taxi, and takeoff
Climb
Cruise
- Reserve
Total fuel required
1.4
2.6
28.5
6.7
39.2 Gallons
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.
July 8/98
5-7
Summary of Contents for Cessna 172S Skyhawk SP
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