Piper WARRIOR III PA-28-161, Pilot Operating Handbook

Page: 86 / 190

SECTION 5 PIPER AIRCRAFT CORPORATION
PERFORMANCE PA-28-161, WARRIOR III
SECTION 5 PIPER AIRCRAFT CORPORATION
PERFORMANCE PA-28-161, WARRIOR III
REPORT: VB-1565 ISSUED: JULY 1, 1994
5-6 REVISED: JUNE 9, 1995
REPORT: VB-1565 ISSUED: JULY 1, 1994
5-6 REVISED: JUNE 9, 1995
values from the graph (Figure 5-31). Now, subtract the values
obtained from the field conditions from the values obtained from
the cruise conditions to find the true fuel, time and distance values
needed for the flight plan.
The values obtained by proper utilization of the graphs for the
descent segment of the example are shown below.
(1) Time to Descend
(8.8 min. minus 4.9 min.) 9.0 min.*
(2) Distance to Descend
(19.6 miles minus 11.0 miles) 8.6 miles*
(3) Fuel to Descend
(1.9 gal. minus 1.0 gal.) .9 gal.*
(e) Cruise
Using the total distance to be traveled during the flight, subtract
the previously calculated distance to climb and distance to descend
to establish the total cruise distance. Refer to the appropriate Avco
Lycoming Operator’s Manual when selecting the cruise power
setting. The established pressure altitude and temperature values
and the selected cruise power should now be utilized to determine
the true airspeed from the Cruise Performance graph (Figure 5-21
or 5-23).
Calculate the cruise fuel consumption for the cruise power
setting from the information provided by the Avco Lycoming
Operator’s Manual.
The cruise time is found by dividing the cruise distance by the
cruise speed and the cruise fuel is found by multiplying the cruise
fuel consumption by the cruise time.
The cruise calculations established for the cruise segment of the
flight planning example are as follows:
(1) Total Distance 300 miles
(2) Cruise Distance
(e)(1) minus (c)(4) minus (d)(2),
(300 minus 13 miles minus 8.6 miles)
278.4 miles
*reference Figure 5-31
values from the graph (Figure 5-31). Now, subtract the values
obtained from the field conditions from the values obtained from
the cruise conditions to find the true fuel, time and distance values
needed for the flight plan.
The values obtained by proper utilization of the graphs for the
descent segment of the example are shown below.
(1) Time to Descend
(8.8 min. minus 4.9 min.) 9.0 min.*
(2) Distance to Descend
(19.6 miles minus 11.0 miles) 8.6 miles*
(3) Fuel to Descend
(1.9 gal. minus 1.0 gal.) .9 gal.*
(e) Cruise
Using the total distance to be traveled during the flight, subtract
the previously calculated distance to climb and distance to descend
to establish the total cruise distance. Refer to the appropriate Avco
Lycoming Operator’s Manual when selecting the cruise power
setting. The established pressure altitude and temperature values
and the selected cruise power should now be utilized to determine
the true airspeed from the Cruise Performance graph (Figure 5-21
or 5-23).
Calculate the cruise fuel consumption for the cruise power
setting from the information provided by the Avco Lycoming
Operator’s Manual.
The cruise time is found by dividing the cruise distance by the
cruise speed and the cruise fuel is found by multiplying the cruise
fuel consumption by the cruise time.
The cruise calculations established for the cruise segment of the
flight planning example are as follows:
(1) Total Distance 300 miles
(2) Cruise Distance
(e)(1) minus (c)(4) minus (d)(2),
(300 minus 13 miles minus 8.6 miles)
278.4 miles
*reference Figure 5-31