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165
The Aeroplane Speaks. Fifth Edition
·
H. Barber
7
"Well,"
said
the
Aspect
Ratio,
"have
it
your
own
way,
though
I'm
sorry
to
see
a
pretty
young
lady
like
Efficiency
compromised
so
early
in
the
game."
"Look
here,"
exclaimed
a
number
of
Struts,
"we
have
got
a
brilliant
idea
for
improving
the
Aspect
Ratio,"
and
with
that
they
hopped
up
on
to
the
Spars.
"Now,"
excitedly,
"place
another
Surface
on
top
of
us.
Now
do
you
see?
There
is
double
the
Surface,
and
that
being
so,
the
proportion
of
Weight
to
Surface
area
is
halved.
That's
less
burden
of
work
for
the
Surface,
and
so
the
Spars
need
not
be
so
strong
and
so
deep,
which
results
in
not
so
thick
a
Surface.
That
means
the
Chord
can
be
proportionately
decreased
without
adversely
affecting
the
Camber.
With
the
Chord
decreased,
the
Span
becomes
relatively
greater,
and
so
produces
a
splendid
Aspect
Ratio,
and
an
excellent
proportion
of
Lift
to
Drift."
"I
don't
deny
that
they
have
rather
got
me
there,"
said
the
Drift;
"but
all
the
same,
don't
forget
my
increase
due
to
the
drift
of
the
Struts
and
their
bracing
wires."
"Yes;
I
dare
say,"
replied
the
Surface,
"but
remember
that
my
Spars
are
less
deep
than
before,
and
consequently
I
am
not
so
thick
now,
and
shall
for
that
reason
also
be
able
to
go
through
the
air
with
a
less
proportion
of
Drift
to
Lift."
"Remember
me
also,
please,"
croaked
the
Angle
of
Incidence.
"Since
the
Surface
has
now
less
weight
to
carry
for
its
area,
I
may
be
set
at
a
still
lesser
and
finer
Angle.
That
means
less
Drift
again.
We
are
certainly
getting
on
splendidly!
Show
us
how
it
looks
now,
Blackboard."
And
the
Blackboard
obligingly
showed
them
as
follows:
Marker
Marker
Fine marker
White-out
Fine white-out
Circle
Paint
Unmarker
Hand
Scalpel
Dice
Sieve
Purify
Undo
Redo
Start over
