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Owner`s Manual
Wing fabric maintenance
Any cuts or tears at critical areas such as the trailing edge, sail fixing points or similar
high load areas, must be repaired at either the Avian factory or an Avian approved
workshop. Small damage to panels, leading edge covers etc., can be repaired with
proprietary self adhesive tape. We define small damage as abraded holes no more
than 10mm diameter and small cuts no longer than 15mm. Anything larger should be
inspected by Avian approved personnel.
Stitching Damage
Thread damage never gets better and eventually runs. If you abrade a seam or
damage the stitching in any way, have the damage repaired before it gets worse.
Small, non load-bearing areas can often be repaired in situ by the tedious but effective
method of hand sewing back through the original stitch holes. Use a needle and only
the correct thread: available from Avian or a good sail maker.
Wing fabric cleaning
It is, without doubt, better to keep the wing clean than to try and clean it. Some dirt
never comes off completely. If you decide you do need to wash your wing, then
select a dry day and have access to a good hose and clean water supply. Never use
bleaches, strong soaps or detergents. The soap residue can react with ultra violet light
and degrade the fabric. We recommend a very mild liquid soap (washing-up liquid)
and a soft sponge. Gently wash the fully rigged wing, frequently hosing clean.
Copious amounts of clean water will not harm the wing and can be very beneficial in
removing sand and grit which may get trapped inside the sail. (Usually in the nose or
wing tip areas.) Ensure that the wing is completely dry before de-rigging and storing.
Battens
Battens form the wing shape and substantially influence the performance of the wing.
They need treating with care and, since they are subject to constant stress both during
flight and rigging, they may lose their shape. It is essential that they are checked
against the template at frequent intervals and re-profiled if necessary. (See Section:
Battens and Batten profile.)
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