rudder 音標拼音: [r'ʌdɚ]
n . 舵,方向舵,指導原則
舵,方向舵,指導原則
rudder n 1 :
a hinged vertical airfoil mounted at the tail of an aircraft and used to make horizontal course changes 2 : (
nautical )
steering mechanism consisting of a hinged vertical plate mounted at the stern of a vessel Rudder \
Rud "
der \,
n .
A riddle or sieve . [
Prov .
Eng .]
[
1913 Webster ]
Rudder \
Rud "
der \,
n . [
OE .
rother ,
AS .
r [=
o ][
eth ]
er a paddle ;
akin to D .
roer rudder ,
oar ,
G .
ruder ,
OHG .
roadar ,
Sw .
roder ,
ror ,
Dan .
roer ,
ror . [
root ]
8 .
See {
Row }
to propel with an oar ,
and cf . {
Rother }. ]
1 . (
Naut .)
The mechanical appliance by means of which a vessel is guided or steered when in motion .
It is a broad and flat blade made of wood or iron ,
with a long shank ,
and is fastened in an upright position ,
usually by one edge ,
to the sternpost of the vessel in such a way that it can be turned from side to side in the water by means of a tiller ,
wheel ,
or other attachment .
[
1913 Webster ]
2 .
Fig .:
That which resembles a rudder as a guide or governor ;
that which guides or governs the course .
[
1913 Webster ]
For rhyme the rudder is of verses . --
Hudibras .
[
1913 Webster ]
3 .
In an aircraft ,
a surface the function of which is to exert a turning moment about an axis of the craft .
[
Webster 1913 Suppl .]
{
Balance rudder } (
Naut .),
a rudder pivoted near the middle instead of at the edge , --
common on sharpies .
{
Drop rudder } (
Naut .),
a rudder extending below the keel so as to be more effective in steering .
{
Rudder chain } (
Naut .),
one of the loose chains or ropes which fasten the rudder to the quarters to prevent its loss in case it gets unshipped ,
and for operating it in case the tiller or the wheel is broken .
{
Rudder coat } (
Naut .),
a covering of tarred canvas used to prevent water from entering the rudderhole .
{
Rudder fish }. (
Zool .)
(
a )
The pilot fish .
(
b )
The amber fish ({
Seriola zonata }),
which is bluish having six broad black bands .
(
c )
A plain greenish black American fish ({
Leirus perciformis }); --
called also {
black rudder fish },
{
logfish },
and {
barrel fish }.
The name is also applied to other fishes which follow vessels .
{
Rudder pendants } (
Naut .),
ropes connected with the rudder chains .
[
1913 Webster ]
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