Lab
Library
Journal
Shop
Sign in
to keep
Share image
1
165
The Aeroplane Speaks. Fifth Edition
·
H. Barber
149
=Stability,
Longitudinal=--The
stability
of
an
aeroplane
about
an
axis
transverse
to
the
direction
of
normal
horizontal
flight,
and
without
which
it
has
no
tendency
to
oppose
pitching
and
tossing.
=Stability,
Lateral=--The
stability
of
an
aeroplane
about
its
longitudinal
axis,
and
without
which
it
has
no
tendency
to
oppose
sideways
rolling.
=Stabilizer=--A
surface,
such
as
fin
or
tail-plane,
designed
to
give
an
aeroplane
inherent
stability.
=Stall,
to=--To
give
or
allow
an
aeroplane
an
angle
of
incidence
greater
than
the
"maximum"
angle,
the
result
being
a
fall
in
the
lift-drift
ratio,
the
lift
consequently
becoming
less
than
the
weight
of
the
aeroplane,
which
must
then
fall,
i.e.,
"stall"
or
"pancake."
=Stress=--Burden
or
load.
=Strain=--Deformation
produced
by
stress.
=Side-Slip,
to=--To
fall
as
a
result
of
an
excessive
"bank"
or
"roll."
=Skid,
to=--To
be
carried
sideways
by
centrifugal
force
when
turning
to
left
or
right.
=Skid,
Undercarriage=--A
spar,
mounted
in
a
fore
and
aft
direction,
and
to
which
the
wheels
of
the
undercarriage
are
sometimes
attached.
Should
a
wheel
give
way
the
skid
is
then
supposed
to
act
like
the
runner
of
a
sleigh
and
to
support
the
aeroplane.
[28]
=Skid,
Tail=--A
piece
of
wood
or
other
material,
orientable,
and
fitted
with
shock
absorbers,
situated
under
the
tail
of
an
aeroplane
in
order
to
support
it
upon
the
ground
and
to
absorb
the
shock
of
alighting.
[28a]
=Section=--Any
separate
part
of
the
top
surface,
that
part
of
the
bottom
surface
immediately
underneath
it,
with
their
struts
and
wires.
=Spar=--Any
long
piece
of
wood
or
other
material.
Marker
Marker
Fine marker
White-out
Fine white-out
Circle
Paint
Unmarker
Hand
Scalpel
Dice
Sieve
Purify
Undo
Redo
Start over
