ANGLE OF

This article appears in Volume V24, Page 927 of the Encyclopedia Britannica.

Encyclopedia Britannica - Main :: ANC-APO

ANGLE OF INCLINATION
,FIG. 13.Curves of Stability of " Monarch " and " Captain."
the stability to. some extent. The effect of freeboard on the range and on the safety of ships is also illustrated by a comparison between the curves of stability (fig. 13) of the armoured turret ships " Monarch " and " Captain," the latter of which was lost at sea in 187o. These vessels were similar in construction and dimensions except that the freeboard of the " Monarch "was 14' 0" and that of the " Captain " 6' 6"; the smaller freeboard of the " Captain " was associated with a slightly lower position of the centre of gravity and a greater metacentric height. The stability curve of the ' Captain " in consequence rises rather more steeply than that of the " Monarch " up to about 14 when the deck edge is immersed ; the righting lever then rapidly. declines, and vanishes at 54a in contrast to .the " Monarch's," where the maximum righting lever is doubled and range augmented 1.3 times by the additional freeboard. For the

influence

INFLUENCE (Late Lat. influentia, from influere, to flow in)

of the range in enabling a ship to withstand a suddenly applied force see " Dynamical Stability."
Again, for the box-shaped

vessel

VESSEL (O. Fr. vaissel, from a rare Lat. vascellum, dim. of vas, vase, urn)

previously considered, if the breadth is modified successively from 30 ft. to 35, 25 and 20 ft., other features remaining unaltered, the curves of stability then effect of obtained are represented by BB, CC and DD in fig. 12. It is beam.
seen that alteration in beam affects principally the stability
levers at moderate angles of inclination, while at 90 inclination the curves all intersect. Since at small angles GZ=GM.B (in circular
3.0 c25 =20
id
.~'I i/.[f4GEN .A1G HEIGNT 2,
0 ` I 30 45 7'i y 1
Angie of Inclination. :
`l N ?4.
of variation in height of centre of gravity.
measure) approximately, the initial slope of the curve is proportional to GM, and the tangent to this curve at the origin can be

drawn

DRAWN

by setting by the value of GM as an ordinate to an

angle

ANGLE (from the Lat. angulus, a corner, a diminutive, of which the primitive form,
angus
- ANGUS, EARLS OF
, does not occur in Latin; cognate are the Lat. angere, to compress into a bend or to strangle, and the Gr. ayKOS, a bend; both connected with the Aryan root ank-, to

of one radian (57.3 ) as abscissa, and joining the point to the origin. (See

figs

FIGS

. 10 and II.) The height of the metacentre above the centre of buoyancy will, caeleris paribus, vary with the

cube

CUBE (Gr. K46os, a cube)

of the breadth, and an increase of beam will result in a large increase of stability at moderate angles.
Finally the effect of an alteration in the

vertical

VERTICAL (from Lat. vertex, highest point)

position of the centre of gravity is illustrated by the three stability curves of a steam yacht in fig. 14, where the centre of gravity is Effect of successively raised 1 ft. In the

condition

CONDITION (Lat. condicio, from condicere, to agree upon, arrange; not connected with conditio, from condere, conditum, to put together)

corresponding position of to the fourth and lowest curve, the GM is egative (2 ft.) c.a and so also are the righting levers up to 15 when the curve
crosses the

axis

AXIS (Lat. for " axle ")

; from 15 to about 52 the GZ is positive, but above
35
30
30
20
25
30

End of Article: ANGLE OF

If you wish, you can link directly to this article.

<a href="http://jcsm.org/StudyCenter/Encyclopedia/ANC_APO/ANGLE_OF.html">
ANGLE OF
</a>

(Previous)
ANGLE (from the Lat. angulus, a corner, a dimin...

(Next)
ANGLER

JCSM was founded in 1997 and exists to help the community and bring people into a life-changing and productive relationship with Jesus Christ. JCSM offers over 200,000 free web pages, including its weekly inspirational emails that were sent continuously for over a decade.

Jesus Christ Saves Ministries
P.O. Box 9297
San Diego, CA 92169
1-888-887-0417 or Email