Wing Rigging - P&M Aviation QUIK GT450 Operating Instructions Manual

13.2. WING RIGGING

Rigging and de-rigging the aircraft is a simple and safe operation when carried out
correctly. However, if you do not use the correct procedures or techniques it is possible to
injure yourself. It is therefore essential that you receive formal instruction on how to rig and
de-rig the aircraft by an instructor, P&M dealer or other competent person before attempting
the operation on your own.
1. Select a clean, dry area and lay the wing down, opening the zip to reveal the control frame and
underside of the wing.
2. Open out the control frame and attach the base bar to the corner joints. Inspect the basebar holes
for damage.
3. Lift the wing from the front and rotate it so that the wing is now laying on the ground with the
assembled control frame flat on the ground underneath.
4. Remove all the sail ties and open each wing about a metre. Lift the kingpost to its upright position
and attach the rear top rigging cable to the cable end protruding from the top of the kingpost.
Tighten the shackle.
5. Ensure that the upper cables are free from kinks and that the over-centre lever is in the open
position.
6. Open the wings in stages, alternating between wings to prevent damage to the crossboom and
fittings. Stop and check if any undue resistance is felt.
7. Ensure that all wires are untangled, particularly at the connections.
8. Excluding the nose rib, fit all the top surface ribs starting with the outboard main ribs and working in-
board towards the root. Do not force the ribs if they seem hard to push fully home.
9. On all the upper surface ribs fit the single lower elastic. If the elastics appear overtight at this stage,
leave them off until after the final tensioning of the crossboom when it is easier to push the ribs
finally home and requires less effort to fit the elastics.
10. After fitting the upper surface ribs, remove the safety pin from the crossboom restraint cable stud
just inside the rear end of the keel pocket. Make sure that the crossboom rigging tool (extension to
the rear of the keel), is properly located in the keel with the slots engaged. Hook the front rigging
tool pulley onto the keyhole tang and secure with a safety pin. Ensure that the cord between the two
pulleys is not tangled. Using the pulley cord, pull back the crossboom until the keyhole tang can be
located on the restraint cable stud.
process, stop and investigate, the pulley system multiplies the pulling force by 6:1. (The end thrust
in the crossboom is multiplied a further 4.5 times). Fit the safety pin to the crossboom restraint stud.
Quik & Quik GT450 Aircraft Operating Instructions
th
29 March 2007
Issue 1
WARNING
!
WARNING
!
The base bar is a
component. Any damage of any kind - bends,
dents, deep scratch marks and signs of stress
around the holes - means the base bar must
be replaced before the next flight.
CAUTION
Damage may result to the sail and to the ribs if you
force the ribs into the sail. Investigate immediately if
undue resistance is felt, and if undue resistance
occurs when the ribs are nearly home, leave them at
this stage until after the wing has been tensioned at
a later stage.
If you meet any sudden resistance during the tensioning
primary structural
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