Aerospool WT9 Dynamic LSA / Club, Pilot Operating Handbook

Page: 114 / 204

Page 6-4 EASA Approved Initial issue
Weighing Method
When complex modifications, accomplishment of service bulletins, removing/installation of equipment or loss of
records have occurred, the new Basic Empty Weight / Moment must be determined by weighing the aircraft. The new
values must be recorded into the aircraft
’s Weight and Balance Record (Chapter 6.3).
1. Aircraft preparation for weighing:
a) Defuel the aircraft ’s fuel system (see 8.3.2).
b) Weigh the aircraft in a closed building to prevent errors due to wind gusts.
c) Remove all snow, ice, dirt and water from the aircraft ’s surfaces.
d) Remove all snow, ice and dirt from the wheel fairings.
e) Remove all objects not included in the aircraft ’s Approv ed Equipment List.
f) Remove all objects not included in the aircraft ’s Weight and Balance Record.
g) Verify all items in the Equipment List are installed in their correct location.
h) Inflate the aircraft ’s tires to their recommended operating pressures.
i) Verify oil, brake fluid and coolant are at their prescribed maximum levels.
j) Close covers and other lids.
k) Place scales under each wheel (minimum scale capacity 300 kg / 660 lb).
l) Brake lever to PARK position.
m) Remove the external control locks and place all controls to their neutral position. Retract the wing flaps.
2. Aircraft leveling:
a)
Level laterally with a bubble-level placed across the cabin sills above the main spar with the canopy opened
(Fig. 6-1). If the bubble-level is not long enough, a suitable extension (e.g. even wooden plank) may be used
with the bubble-level placed on top. Be careful not to damage the cabin sills when leveling.
b) Remove bubble-level and close the canopy.
c) Level longitudinally with a bubble-level placed on the canopy frame (Fig. 6-1). Adjust the level by deflating
the nose wheel’s tire or install suitable pads under the nose/main wheel scales.
Longitudinal leveling Lateral leveling
Fig. 6-1 Aircraft leveling