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position.
(15) Close the passenger door.
(16) Read the value from the left main wheel scale.
Enter the value on the weighing form under MAIN
G1LH Gross.
(17) Read the value from the right main wheel scale.
Enter the value on the weighing form under MAIN
G1RH Gross.
(18) Read the value from the nose wheel scale. Enter
the value on the weighing form under NOSE G2
Gross.
(19) Use the plumb line to mark the position of the
reference plane on the floor:
S Hold the plumb line against the leading edge
of the wing where the wing joins the stubwing.
S Mark this position on the floor.
S Draw a straight line between the 2 points you
marked on the floor.
S Draw a second line 2194 mm (86.38 in)
forward of the first line.
Do this on each side.
AIRCRAFT
Weighing and Levelling
DA 40 Series
AMM
Page 12
20 Sep 2007 08-10-00 Doc # 6.02.01
Rev. 5
WEIGHING REPORT
Model: DA 40 Serial Number:___________ Registration:_____________
Data with reference to the Type Certificate Data Sheet and the Airplane Flight Manual.
Reference Plane: Vertical plane 2194 mm (86.38 in) in front of the leading edge of wing at
the root rib.
Horizontal reference line: Wedge 600:31 (2.96°), 2910 mm (114.57 in) aft of the step in the cockpit
rim.
Equipment Inventory - dated:_______ Cause for Weighing:______________________________
Weight and Balance Calculations (Weighing at the wheels)
Weight Condition: Including brake fluid, engine oil (MAX level), coolant (TAE version only), and
unusable fuel (Lycoming: 2 x 0.5 US gal / 2 x 1.9 liters; TAE: 2 x 1 US gal / 2 x 3.8
liters).
Support Gross Tare Net Lever Arm
MAIN G1LH X1LH =
MAIN G1RH X1RH =
NOSE G2 X2 =
Empty Weight
Calculate the Empty Weight, G = MAIN G1LH + MAIN G1RH + NOSE G2. G =
Calculate the Empty Weight Moment,
M = (G1LH * X1LH)+( G1RH * X1RH) + (G2 * X2).
M =
Calculate the Empty Weight Center-of-Gravity position, XCG = M/G. XCG =
% Maximum permitted all-up-weight: Max AUW (see AFM).
Maximum useful load = Max AUW - G.
Record the Empty Weight (G) and the Empty-Weight Moment (M) in the Airplane Flight Manual.
Place/Date Authorizing Stamp Authorizing Signature
Figure 6: Weighing Report for Mechanical Scales Under the Wheels
AIRCRAFT
DA 40 Series
AMM
Weighing and Levelling
Doc # 6.02.01
Rev. 5 08-10-00 Page 13
20 Sep 2007
Detail Steps/Work Items Key Items/Reference
(20) Use the plumb line to mark the position of the
nose wheel center line on the floor.
(21) Use the plumb line to mark the position of each
main wheel center line on the floor.
(22) Lift the airplane off the scales with the jacks. Refer to Section 07-10.
(23) Read the weight of the wooden blocks on each
of the scales. Record the values in the column
headed TARE in the Weighing Report.
(24) Remove the scales and the ramps.
(25) Measure the distance X1LH. Record the value in
the Weighing Report.
(26) Measure the distance X1RH. Record the value in
the Weighing Report.
(27) Measure the distance X2. Record the value in the
Weighing Report.
(28) Refer to the calibration records for the weighing
scales. If necessary, correct the Gross and Tare
values of MAIN G1LH, MAIN G1RH, and NOSE G2.
(29) Subtract each Tare value from the related Gross
value. Record the result under Net in the
Weighing Report.
(30) Lower the airplane with the jacks.
(31) Calculate the Empty Weight, G, from the Net
values.
G =
Net G1LH + Net G1RH + Net G2
(32) Calculate the Empty Weight Moment, M. M =
(G1LH * X1LH)+( G1RH * X1RH) + (G2 * X2)
(33) Calculate the position of the Empty Weight
Center-of-Gravity, XCG.
XCG = M/G
(34) Record the Empty Weight (G) and the Empty
Weight Moment (M) in the Airplane Flight
Manual.
AIRCRAFT
Weighing and Levelling
DA 40 Series
AMM
Page 14
20 Sep 2007 08-10-00 Doc # 6.02.01
Rev. 5
Intentionally left blank
AIRCRAFT
DA 40 Series
AMM
Weighing and Levelling
Doc # 6.02.01
Rev. 5 08-20-00 Page 1
20 Sep 2007
Section 08-20
Levelling
1. General
These procedures tell you how to make the airplane level. See Section 07-10 for lifting the airplane
with jacks.
Make the airplane level with jacks unless you are weighing the airplane. If you weigh the airplane,
change the airplane tire pressures or use blocks to make the airplane level (see Section 08-10).
2. Make the Airplane Level with Jacks
A. Equipment
Items Quantity Part Number
Airplane jacks (600 kg / 1320 lb minimum lifting
　
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