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二战飞机手册 b-24-manual-part-7

ID：32819

阅读量：0

大小：24.90 MB

页数：36页

时间：2023-01-29

金币：50

上传者：战必胜
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PRilfClPtEs
(lF
BAL[lIGE
The
theory
of
aircraft
weight
and
balance
is
extremely
simple.
It
is
that
of
the
old familiar
steelyard
scale
which is
in
equilibrium
or
bal-
ance
when
it
rests
on
the
fulcrum
in
a level
position.
It
is
apparent
that
the influence
of
weight
is
directly
dgpendent
on its
distance
240
from
the fulcrum
and
that
the
weight
must
be
distributed
so
that the
turning
efiect
is
the
same
on
one
side
of
the fulcrum
as
on the
other.
A heavy
weight
near
the fulcrum
has
the
same
effect
as
a lighter
weight
farther
out
on
the
bar.
The
distance
of
any
object
from
the
ful-
crum is
called
its
arm. This
distance,
or
arm,
multiplied
by the
weight
of
the
object,
is
its
turning
efiect,
or moment,
exerted
about
the
fulcrum.
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