WIRES.--All the wires should be kept well greased or
oiled, and in the correct tension. When examining the wires,
it is necessary to place the aeroplane on level ground, as
otherwise it may be twisted, thus throwing some wires into
undue tension and slackening others. The best way, if there
is time, is to pack the machine up into its ``flying position.''
If you see a slack wire, do not jump to the conclusion
that it must be tensioned. Perhaps its opposition wire is
too tight, in which case slacken it, and possibly you will
find that will tighten the slack wire.
Carefully examine all wires and their connections near
the propeller, and be sure that they are snaked round with
safety wire, so that the latter may keep them out of the way
of the propeller if they come adrift.
The wires inside the fuselage should be cleaned and regreased
about once a fortnight.
STRUTS AND SOCKETS.--These should be carefully examined
to see if any splitting has occurred.
DISTORTION.--Carefully examine all surfaces, including
the controlling surfaces, to see whether any distortion has
occurred. If distortion can be corrected by the adjustment
of wires, well and good; but if not, then some of the internal
framework probably requires replacement.
ADJUSTMENTS.--Verify the angles of incidence; dihedral,
and stagger, and the rigging position of the controlling-
surfaces, as often as possible.
UNDERCARRIAGE.--Constantly examine the alignment and
fittings of the undercarriage, and the condition of tyres and
shock absorbers.
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