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165
The Aeroplane Speaks. Fifth Edition
·
H. Barber
38
Quoth
the
Engine:
"I
strangle
for
Air.
A
certain
proportion,
and
that
of
right
density,
I
must
have
to
one
part
of
Petrol,
in
order
to
give
me
full
power
and
compression,
and
here
at
an
altitude
of
ten
thousand
feet
the
Air
is
only
two-thirds
as
dense
as
at
sea-level.
Oh,
where
is
he
who
will
invent
a
contrivance
to
keep
me
supplied
with
air
of
right
density
and
quality?
It
should
not
be
impossible
within
certain
limits."
"We
fully
agree,"
said
the
dying
Power
and
Thrust.
"Only
maintain
Us
and
you
shall
be
surprised
at
the
result.
For
our
enemy
Drift
decreases
in
respect
of
distance
with
the
increase
of
altitude
and
rarity
of
air,
and
there
is
no
limit
to
the
speed
through
space
if
only
our
strength
remains.
And
with
oxygen
for
pilot
and
passengers
and
a
steeper
pitch[11]
for
the
Propeller
we
may
then
circle
the
Earth
in
a
day!"
Ah,
Reader,
smile
not
unbelievingly,
as
you
smiled
but
a
few
years
past.
There
may
be
greater
wonders
yet.
Consider
that
as
the
speed
increases,
so
does
the
momentum
or
stored-up
force
in
the
mass
of
the
aeroplane
become
terrific.
And,
bearing
that
in
mind,
remember
that
with
altitude
gravity
decreases.
There
may
yet
be
literally
other
worlds
to
conquer.[12]
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