Piper Cherokee Archer II Pilot Operating Handbook page 62

SECTION 5
PERFORMANCE
PIPER AIRCRAFT CORPORATION
PA-28-18I, CHEROKEE ARCHER D
The conditions mid calculations for oW- exmnple flight are listed below. The takeoff and
landing distances required for our example flight have fallen well below the available runway
lengths.
)
(I)
Pressure Al titude
(2)
Temperature
(3) Wind Component
(4)
Runway Length Available
(5) Runway Required
NOTE
Departure
Airport
2000 ft.
70°F
10 KTS
7000 ft.
950 ft.·
Destination
Airport
2300 ft.
70°F
5 KTS
4500 ft.
825··
The remainder .of the performance charts used in this flight plan
example assume a no wind condition. The effect of winds aloft
must be considered by the pilot when computing climb, cruise and
descent performance.
(c) Climb
The next step in our flight plan is to determine the necessary climb segment components.
The desired cruise pressure altitude mld corresponding cruise outside air temperature values
are the first variables to be considered in determining the climb components from the Time,
Distance. and Fuel to Climb graph (Figure 5-15). 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 5-15). Now, subtract the values obtained
from the graph for the field of departure conditions 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.
J
following laJues were determined from the above instructions in our flight planning The
example.
(I)
(2)
(3)
(4)
(5)
Cruise Pressure Altitude
Cruise OAT
Time to Climb (12.5 min. minus 4.5 min.)
Distance to Climb (17.5 minus 6.5 nautical miles)
Fuel to Climb
(3
gal. minus I gaL)
,
6000 ft.
55°F
8
min.···
II nautical-miles"·
2 gal .•••
·reference Figure 5-11
··reference Figure 5-35
···reference Figure 5-15
REPORT: VB-790
5-4
ISSUED: JUNE 18, 1976
REVISED: JANUARY 20, 1977