最終更新日：2022/12/23
例文
"One
of
the
most
bittersweet
joys
in
model
aviation
is
an
out
of
sight
flight
by
a
Free
Flight
model.
While
we
all
strive
for
our
models
to
fly
as
well
as
we
can,
it
is
possible
to
have
a
model
fly
too
well.
Well
trimmed,
and
with
a
bit
of
luck,
a
model
can
be
caught
in
a
thermal
and
climb
to
beyond
the
limits
of
our
vision.
It
is
the
purpose
of
a
dethermalizer
to
effect
a
change
in
the
geometry
of
a
model,
such
that
it
descends
more
rapidly,
yet
still
safely.
Getting
the
DT
to
activate
after
a
target
time
is
the
job
of
a
DT
timer."
~
Thayer
Syme.
Reprinted
with
permission.
復習用の問題
One of the most bittersweet joys in model aviation is an out of sight flight by a Free Flight model. While we all strive for our models to fly as well as we can, it is possible to have a model fly too well. Well trimmed, and with a bit of luck, a model can be caught in a thermal and climb to beyond the limits of our vision. It is the purpose of a dethermalizer to effect a change in the geometry of a model, such that it descends more rapidly, yet still safely. Getting the DT to activate after a target time is the job of a DT timer.
~ Thayer Syme. Reprinted with permission.
英語 - 英語
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