Piper Cherokee Archer II Pilot Operating Handbook page 61

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PIPER AIRCRAFT CORPORATION
PA-28-18I, CHEROKEE ARCHER II
5.5 FLIGHT PLANNING EXAMPLE
(a) Aircraft Loading
SECTION 5
PERFORMANCE
L
The first step in planning our flight is to calculate the airplane weight and center of gravity
by utilizing the infonnation 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
detennine the current basic empty weight of the airplane.
Make use of the Weight and Balance Loading Form (Figure 6-11) and the e.G. Range and
Weight graph (Figure 6-15) to detennine the total weight of the airplane and the center of gravity
position.
After proper utilization of the infonnation 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 /Jefer to item (g)(I)J.
(I) Basic Empty Weight 1400lbs.
(2) Occupants (2 x 170 Ibs) 3401bs.
(3) Baggage and Cargo 360 Ibs.
(4) Fuel (6Ib/gal x 50) 300lbs.
(5) Takeoff Weight 2400lbs.
(6) Landing Weight
( a)(5) minus (g)(l), (2400 lbs. minus 136 Ibs.) 2264lbs.
Our takeoff weight is below the maximum of 2550 lbs. and our weight and balance
calculations have detennined our e.G. position within the approved limits.
(b) Takeoff and Landing
Now that we have detennined oUT aircraft loading, we must consider all aspects of our
takeoff and lal)ding.
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 (Figure 5-5 or 5-7) to determine the length of runway necessary for the
takeoff and/or the barrier distllll.ce.
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: JUNE 18, 1976
REPORT: VB-790
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