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Hélicoptères Guimbal
CABRI G2
Weight and CG position determination
Before each flight, the pilot should determine helicopter gross weight and
CG position in order to check that helicopter CG limits shown page 2-8 are
not exceeded, and to determine performance (Refer to Section 5).
This can be done with the following table :
1. Determine all the weights in the first column,
2. Compute longitudinal and lateral moments,
3. Sum each three columns,
4. Calculate total arms by dividing moments by total weight.
In metric units :
Item
Equipped aircraft
Right
occupant and seat
Left
occupant and seat
right
Doors
left
Main luggage
compartment
Front luggage
compartment
2
Fuel (
)
Supplements (
Total
(
1
)
Report aircraft equipped weight data
(
2
)
Use 0.72 kg/L for AVGAS density, and 0.75 kg/L for automotive
gasoline density.
3
(
)
For fuel position, use :
Fuel Quantity ................................... X................. Y
0 to 50 L .....................................1833 mm
50 to 150 L ...................................1886 mm
150 to 170 L ..................................1903 mm
(
4
)
Use - 3.1 kg (negative weight) when a door is removed
(
5
)
Use - 3.5 kg when left seat is removed
6
(
)
Refer to Section 9 for removable supplements.
For bear paws, Use 1.5 kg and no impact on CG position.
6-4
Approved under DOA EASA.21J.211
Weight
(kg)
1
EW (
)
5
(
)
4
(
)
2
(
)
6
6
)
(
)
Sum =
MX / GW MY / GW
GW
WEIGHT AND BALANCE
Arm X
Arm Y
(mm)
(mm)
1
1
AX (
)
AY (
)
1300
320
1300
-280
600
1250
-600
1854
323
325
0
3
3
(
)
(
)
6
6
(
)
(
)
-313 mm
-338 mm
-342 mm
SECTION 6
Mom X
Mom Y
1
1
MX (
)
MY (
Sum =
Sum =
MX
MY
Original issue
Issue 10
)
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