F
F
L
L
I
I
G
G
H
H
T
T
M
M
A
A
N
N
U
U
A
A
L
L
Document No.:G304MS/AFM
Date of Issue: 07/14
2-7
Approved
CAUTION
Check the weight of non-lifting parts before each flight
The maximum baggage weight is 2 kg (4,4 lbs) including installed
equipment and must be considered when establishing the
maximum weight of non-lifting parts according to the table above.
2.7
Center of Gravity
Permitted C.G. range in flight ................. 25-44,7 %MAC
i.e. .......................................................... 251-387 mm
behind a reference point – point on the leading edge of the wing root
section at y = 425 mm (16,7 in) outboard of the fuselage center line.
Due to position of the powerplant parts the C.G. change after
powerplant installation, fuel fill or retraction position is minimal as
possible. Empty sailplane C.G. position for the cockpit load within
70-110 kg (154-242 lbs) must fit into the crosshatched area in the
following diagram.
If the pilot with a parachute does not reach the placarded minimum
cockpit load, the appropriate amount of lead ballast must be carried
in the nose. One kg of lead ballast (2.2 lbs) in the ballast box will
compensate for 3,49 kg (7 lbs) of the pilot‘s insufficient weight.
Maximum lead ballast capacity of the ballast box is 12 kg (26 lbs).
Suitable lead ballast plates are available from HPH Ltd.
Permanent tail water ballast allows to pilot maintain the flight cg
position at optimum range. 1 kg (2.2 lbs) of the water ballast will
compensate for 4.8 kg (10 lbs) of the pilot‘s increased weight. Pilot
must check the minimum weight limitation given in Sect. 6.3 before
use of this trim ballast.
The empty sailplane C.G. may fit in some cases above or below the
crosshatched area of the diagram and the maximum cockpit load is
less than 110 kg (242 lbs) or minimum cockpit load is higher than
70 kg (154 lbs). In such case modification should be approved, at
first, as well as recorded in the appropriate documents.
