(c) Climb
The next step in the flight plan is to determine the necessary
climb segment components.
The desired cruise pressure altitude and corresponding cruise
outside air temperature values are the first variables to be con-
sidered in determining the climb components from the Time,
Distance and Fuel to Climb graph (Figure 5-17). After the time,
distance and fuel for the cruise pressure altitude and outside air
temperature values have been established, apply the existing condi-
tions at the departure field to the graph (Figure 5-17). Now, subtract
the values obtained from the graph for the field of departure condi-
tions from those for the cruise pressure altitude.
The remaining values are the true fuel, distance and time
components for the climb segment of the flight plan corrected for field
pressure altitude and temperature.
The following values were determined from the above instruc-
tions in the flight planning example.
(1) Cruise Pressure Altitude 6000 ft.
(2) Cruise OAT 15°C
(3) Time to Climb (12 min. minus 3 min.) 9 min.*
(4) Distance to Climb
(17 naut. miles minus 5 naut. miles) 12 naut. miles*
(5) Fuel to Climb (4 gal. minus 2 gal.) 2 gal. *
(d) Descent
The descent data will be determined prior to the cruise data to
provide the descent distance for establishing the total cruise distance.
Utilizing the cruise pressure altitude and OAT, determine the basic
time, distance and fuel for descent (Figure 5-31). These figures must be
adjusted for the field pressure altitude and temperature at the
destination airport. To find the necessary adjustment values, use the
existing pressure altitude and temperature conditions at the destination
airport as variables to find the time, distance and fuel values from
*reference Figure 5-17
(c) Climb
The next step in the flight plan is to determine the necessary
climb segment components.
The desired cruise pressure altitude and corresponding cruise
outside air temperature values are the first variables to be con-
sidered in determining the climb components from the Time,
Distance and Fuel to Climb graph (Figure 5-17). After the time,
distance and fuel for the cruise pressure altitude and outside air
temperature values have been established, apply the existing condi-
tions at the departure field to the graph (Figure 5-17). Now, subtract
the values obtained from the graph for the field of departure condi-
tions from those for the cruise pressure altitude.
The remaining values are the true fuel, distance and time
components for the climb segment of the flight plan corrected for field
pressure altitude and temperature.
The following values were determined from the above instruc-
tions in the flight planning example.
(1) Cruise Pressure Altitude 6000 ft.
(2) Cruise OAT 15°C
(3) Time to Climb (12 min. minus 3 min.) 9 min.*
(4) Distance to Climb
(17 naut. miles minus 5 naut. miles) 12 naut. miles*
(5) Fuel to Climb (4 gal. minus 2 gal.) 2 gal. *
(d) Descent
The descent data will be determined prior to the cruise data to
provide the descent distance for establishing the total cruise distance.
Utilizing the cruise pressure altitude and OAT, determine the basic
time, distance and fuel for descent (Figure 5-31). These figures must be
adjusted for the field pressure altitude and temperature at the
destination airport. To find the necessary adjustment values, use the
existing pressure altitude and temperature conditions at the destination
airport as variables to find the time, distance and fuel values from
*reference Figure 5-17
SECTION 5
PA-28-181, ARCHER III PERFORMANCE
SECTION 5
PA-28-181, ARCHER III PERFORMANCE
ISSUED: JULY 12, 1995 REPORT: VB-1611
5-5
ISSUED: JULY 12, 1995 REPORT: VB-1611
5-5
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