<s>
A	O
take-off	B-Device
warning	I-Device
system	I-Device
or	O
TOWS	B-Device
is	O
a	O
set	O
of	O
warning	O
signals	O
required	O
on	O
most	O
commercial	O
aircraft	O
,	O
designed	O
to	O
alert	O
the	O
pilots	O
of	O
potentially-dangerous	O
errors	O
in	O
an	O
aircraft	O
's	O
take-off	O
configuration	O
.	O
</s>
<s>
In	O
order	O
to	O
reduce	O
this	O
,	O
all	O
major	O
nations	O
now	O
mandate	O
something	O
similar	O
to	O
the	O
US	O
requirement	O
that	O
on	O
(	O
nearly	O
)	O
"	O
all	O
airplanes	O
with	O
a	O
maximum	O
weight	O
more	O
than	O
6,000	O
pounds	O
and	O
all	O
jets	O
 [ ... ] 	O
a	O
takeoff	B-Device
warning	I-Device
system	I-Device
must	O
be	O
installed	O
"	O
.	O
</s>
<s>
TOWS	B-Device
is	O
designed	O
to	O
sound	O
a	O
warning	O
for	O
numerous	O
other	O
dangerous	O
errors	O
in	O
the	O
take-off	O
configuration	O
,	O
such	O
as	O
the	O
flaps	O
and	O
slats	O
not	O
being	O
extended	O
when	O
the	O
throttles	O
are	O
opened	O
while	O
the	O
aircraft	O
is	O
on	O
the	O
ground	O
.	O
</s>
