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165
The Aeroplane Speaks. Fifth Edition
·
H. Barber
134
Once
a
day
try
the
tension
of
the
control
cables
by
smartly
moving
the
control
levers
about
as
explained
elsewhere.
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.
The
latter,
when
made
of
rubber,
wear
quickest
underneath.
Inspect
axles
and
skids
to
see
if
there
are
any
signs
of
them
becoming
bent.
The
wheels
should
be
taken
off
occasionally
and
greased.
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