C42E 540kg LSA POH Issue 3 China
15.03.2016
Page 29 of 36
9
SUPPLEMENTS
9.1
Attaching the wings to the folding mechanism. (Optional).
The C-42 E has an optional folding wing which minimises hangar space. For road transport however you
must remove the wings completely. To attach the wings to the folding system:
Step 1. Fit the jockey wheel to the stern post, fit the traingular wooden support brackets to the bottom of
the tailplane struts, with the aluminium strip uppermost.
Step 2. Remove the stop ring from the slide tube in the cockpit roof.
Step 3. Place a wing parallel to the fuselage with its tip supported on the tail by the wooden support
bracket.
(With both wings folded back and supported by the tail, the aircraft will rock back to sit on its
tail. With only one wing on the tail, the aircraft can be tipped forward to a stable attitude resting
on its nose wheel. Be aware of these movements during rigging and derigging operations. Take
care to protect the wing from damage by contact with the ground).
Step 4. Lift the wing root and slide the attachment block (roller) 2 inches (5cm) over the slide tube.
Step 5. Attach the stop cable on the leading edge to the quick link on the slide tube.
Step 6. Attach the stop ring to the end of the slide tube.
If both wings are in the folded back position the C42 E can be easily moved by one person into a small
hangar space.
9.2
Rigging the wings
If you are tall but weak, it may be easier to manipulate the wing during rigging by holding it at its tip. If
you are short and strong, the better handling point is the top of the wing struts. If you are short and weak,
fetch a friend. If you are short, weak and friendless, don't derig.
Before attempting rigging, take a look at the wing roots and the way in which the rigging mechanism
works. Note that the fulcrum (the roller bracket) is located near the wing root, and also in line with the
rear spar attachment point. The front spar attachment point however is located some way inboard. This
means that lifting the wing tip will result in the front spar clearing its fitting before the rear one. This can
be used to advantage during rigging.
Step 1. Ensure that the spar channels in the cockpit roof are aligned with the top surface of the cockpit
roof frame. Lock the controls, place the flap lever in the fully up position and ensure the brake
is on.
Step 2. Bring the left wing strut into its correct position on the left wing and attach the auxiliary (jury)
struts on the front and rear wing struts to the leading and trailing edge fittings.
Step 3. If this is the first side to be rigged and the second wing half is still resting on the tail, lift the wing
at its tip with one hand. With the other hand, steadily lift the tail so that the aircraft rests on its
nosewheel.
Step 4. Carry the wing into its 90° position relative to the fuselage, taking care not to damage the door
and fuselage with the front spar.
