Weight Control
Officer Approved
Jabiru J400
Section: 6
Publication JP OM15
Owners Manual
6.3.2. Calculating the Aircraft Operating Weights
1-1
Use the Aircraft Empty Weight obtained from Page 6/2 of this Flight Manual,
or the latest aircraft weighing records to enter the vertical scale Labeled
“Aircraft Empty Weight” on lower right hand side of the Figure 6-1t.
1-2
Move horizontally to the left into the “Weight on Front Seat” Scale.
1-3
Move vertically downward one red line for each 20-kg of weight that is placed
on the front seats, and mark a point.
1-4
Move horizontally to the left from the point made in Step 3 to enter the
“Weight on Rear Seat” Scale.
1-5
Move vertically downward one line for each 20-kg of weight that is placed on
the rear seats, and mark a point.
1-6
Move Horizontally to the left from the point made in Step 5, to enter the
“Weight In Baggage Area” Scale
1-7
Move Vertically downward one line for each 10-kg of baggage and mark a
point.
1-8
Move horizontally to the left from the point made in Step 7 to enter the “Take
Off Fuel Quantity” Scale and mark a point, This point is the “Zero Fuel
Weight Reference Point”
1-9
Move Horizontally to the left of the “Zero Fuel Reference Point” and Mark a
“Zero Fuel Weight Line” across the “Aircraft Trim Condition” graph.
1-10
From the “Zero Fuel Point” on the scale (marked in Step 8), move vertically
downward one line in the “Take-Off Fuel Quantity Chart” for each 10-liters of
fuel being carried at the take-off condition. Mark this “Take-Off Fuel Point” on
the scale.
1-11
Move horizontally to the left, and mark a “Take-Off Fuel Weight Line” across
the “Aircraft Trim Condition” graph.
6.3.3. : Calculating the Operating CG Locations
Note: Because the center of gravity for the front seat occupants is only 3-mm aft of
the datum, trim-index changes due to the front seat occupants are negligible.
Because of this, there is no need to include front seat occupants when using these
“Trim-Index Charts” to calculate the cg location.
REVISIO
N
0
1
2
Dated July 02
Page: 6-
C:\Documents and Settings\Administrator\My Documents\My Common Documents\Jabiru Folder\Jabiru Pacific Full Line Cd PDF\Jabiru J-Series Aircraft\Owners
Manuals\Owners manual Sect 6 Rev (2).doc
4