5.5 FLIGHT PLANNING EXAMPLE
(a)
Aircraft Loading
The first step in planning our flight is to calculate the airplane weight and center of gravity
by utilizing the information provided by Section 6 (Weight and Balance) of this handbook.
The basic empty weight for the airplane as delivered from the factory has been entered in
Figure 6-5. If any alterations to the airplane have been made effecting weight and balance, reference
to the aircraft logbook and Weight and Balance Record (Figure 6-7) should be made to determine
the current basic empty weight of the airplane.
Make use of the Weight and Balance Loading Form (Figure 6-11) and the C.G. Range and
Weight graph (Figure 6-15) to determine the total weight of the airplane and the center of gravity
position.
After proper utilization of the information provided we have found the following weights for
consideration in our flight planning example.
The landing weight cannot be determined until the weight of the fuel to be used has been
established [refer to item (g)(1)].
(1)
Basic Empty Weight
1391 lbs.
(2)
Occupants (4 x 170 lbs.)
680 lbs.
(3)
Baggage and Cargo
50 lbs.
(4)
Fuel (6 lb/gal x 30)
180 lbs.
(5)
Takeoff Weight
2316 lbs.
(6)
Landing Weight
(a)(5) minus (g)(1), (2316 lbs. minus 134.4 lbs.)
2181.6 lbs
Our takeoff weight is below the maximum of 2325 lbs. and our weight and balance
calculations have determined our C.G. position within the approved limits.
(b)
Takeoff and Landing
Now that we have determined our aircraft loading, we must consider all aspects of our takeoff
and landing.
All of the existing conditions at the departure and destination airport must be acquired,
evaluated and maintained throughout the flight.
Apply the departure airport conditions and takeoff weight to the appropriate Takeoff
Performance graph (Figures 5-5 and 5-6 or 5-7 and 5-8) to determine the length of runway
necessary for the takeoff and/or the barrier distance.
The landing distance calculations are performed in the same manner using the existing
conditions at the destination airport and, when established, the landing weight.
ISSUED: DECEMBER 16, 1976
REPORT: VB-880
REVISED: JULY 3, 1979
5-3
PIPER AIRCRAFT CORPORATION
SECTION 5
PA-28-161, CHEROKEE WARRIOR II
PERFORMANCE
Summary of Contents for CHEROKEE WARRIOR II
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