IS 7046: Inland vessels - Harbour tugs - Guide for selection

13 Pages·1993·1.5 MB·English

by  Bureau of Indian Standards

इंटरनेट मानक
Disclosure to Promote the Right To Information
Whereas the Parliament of India has set out to provide a practical regime of right to
information for citizens to secure access to information under the control of public authorities,
in order to promote transparency and accountability in the working of every public authority,
and whereas the attached publication of the Bureau of Indian Standards is of particular interest
to the public, particularly disadvantaged communities and those engaged in the pursuit of
education and knowledge, the attached public safety standard is made available to promote the
timely dissemination of this information in an accurate manner to the public.
“जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ”
Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru
“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 7046 (1993): Inland vessels - Harbour tugs - Guide for
selection [TED 18: Inland, Harbour Crafts and Fishing
Vessels]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

Indian Standard
DNALNI SLESSEV - RUOBRAH SGUT -
EDIUG ROF NOITCELES
(
First Revision /
UDC 629.12 : 629.124-2 : 620.1

Q BIS 1993
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002
February 1993 Price Group 3
dnalnI and ruobraH tfarC lanoitceS ,eettimmoC DET 18
FOREWORD
sihT naidnI dradnatS ( tsriF noisiveR ) was detpoda yb eht uaeruB fo naidnI Standards, retfa eht tfard
dezilanif yb eht dnalnI and ruobraH tfarC lanoitceS eettimmoC had neeb devorppa yb eht tropsnarT
gnireenignE lanoisiviD .licnuoC
sihT naidnI dradnatS was tsrif issued ni 1973. nI this tsrif ,noisiver eht tsetal lacigolonhcet -poleved
stnem ni eht dleif deniatbo hguorht suoirav lacinhcet srepap and eht ecneirepxe deniag revo eht sraey
yb trop seitirohtua and srotarepo evah neeb .deredisnoc ,revewoH ti yam eb deton that elihw
gnitceles a gut eht lapicnirp citsiretcarahc nesohc and its tceffe no rehto detaler scitsiretcarahc has ot
eb nekat otni .tnuocca ehT ngised fo a ruobrah gnihtreb gut sdneped no lareves yllautum tnedneped
srotcaf htiw eht gnihtreb .slessev
With eht esaercni ni ezis fo htob sreknat and klub sreirrac and eht tnevda fo reniatnoc ships gniriuqer
trohs dnuora-nrut emit ti has emoceb yrassecen ot tnemgua eht elbaliava trop .seitilicaf sihT yltcerid
setatissecen eht lasiarppa-er fo gnihtreb stnemeriuqer and eht ruobrah gnihtreb tugs. stnempoleveD
era yawrednu ot piuqe emos fo eht egral egannot ships htiw laiceps secived rof gnirvueonam and
.gnihtreb esehT secived era ylno yratnemelpmoc ot eht gnihtreb tugs.
sihT naidnI dradnatS is eno ni eht seires fo standards gnieb depoleved rof ruobrah tugs. ehT rehto
standards :era
.ST 7363 : 1974 dnalnT“ slessev - sdohteM fo tset rof ruobrah tugs - ecnatpeccA airetirc (
under
revision )T
SI 8950 : 1993 dnalnI‘ slessev - lareneG stnemeriuqer rof ruobrah tugs tsrif( revision )’
1s 12267 ( traP 1 ) : 1987 senilediuG‘ rof ytilibats rof inland and ruobrah dekced .’slessev
reverehW eht gniwollof snoitaiverbba era desu ni eht ,txet yeht era ot eb deterpretni as detacidni
:woleb
s.s . . . . . . . elgniS wercS
t.s . . . . . . . niwT wercS
PBL . . . . htgneL. neewteB sralucidnepreP
eirtnecateM.....MG thgieH
ZG . . . . gnithgiR.. reveL
IS 7046 : ‘1993
1 ,’
lndi& Standard
INLANDVESSELS-HARBOURTUGS-' :
GUIDEFORSELECTION
(F irst Revision )
1 EPOCS 2.2.1 TO/N/ Bollard Pull
1.1 sihT standard sedivorp ecnadiug no eht ehT latot drallob llup deriuqer rof handling
suoirav tneilas serutaef hcihw evah ot eb slessev yam eb detupmoc morf eht gniwollof
deredisnoc ni eht noitceles fo ruobrah tugs :noitauqe
to
teem eht gniyrav sdeen fo eht ships.
2 LARENEG
2.1 lacoL, snoitidnoC
&.’tI yrassecen‘ ot eton eht gmwollof -norivne latot citats llup deriuqer ni snotweN
lat~&ilt snoitidnoc, ni hcihw eht gut is tnaem ot
,)N(
:etarepo
laretal rednu retaw aera ni ,*m
ediT ncitcerid and mumixam thgieh hcaorppa yticolev ni ,stonk
;noitairav
elgna fo ship’s noitom evitaler ot
;tnerruC ship’s ertnec enil m ,seerged
laretal aera fo lluh evoba retaw ni ,3m
gniliaverP wind deeps and ;noitcerid
ecaf aera fo erutcurtsrepus ni ma;
hserF ro salt ;retaw
erusserp desuac yb wind deeps ni
nepO desopxe ;gnikcod ,zm/N and
Wosst rehtaew snoitidnoc rednu hcihw elgna fo wind evitaler ot ship’s crtnec
gnikcod has ot eb deirrac ,tuo ,yllaicepse enii ni .seerged
./
wind ,deeps noitcerid and edit ;noitidnoc
On eht basis fo evoba ,noisserpxe eht drallob
)g ecnaraelC rof ;ervueonam and llup deriuqer rof handling egral slessev yait eb
)II htpeD fo .retaw .detupmoc
NOTE -- owT ro erom sgut yam eb desu gnidrocca
2.2 pihS snoisnemiD
ot ytilibt:liavn fo sgut ni suoirav .strop

ecniS eseht tugs evah ot eb yllamron desu rof
3 NGISED STNEMERIUQER
,gnihtreb eht gniwollof main snoisnemid fo eht
mumixam ezis fo ships, hcihw era ylekil ot eb 3.1 oT assess eht tug’s ytiliba ot timsnart
deldn,ah ni that ralucitrap trop evah osla a seslupmi rof ship handhng ,krow eht gniwollof
:gniraeb stcepsa has,,@ ot eb :denimaxe
)a htgneL ;llarevo a j :ecnamrofreP
)b htgneL neewteb ;sralucidneprep )1 citatS drallob ,llup htob daeha and
nretsa pulls
)c dedluoM ;maeb
)2 eerF gninnur deeps
)d dedluoM ;htped
)3 cificepS llup
)e dedaoL ;thguard )4 relleporP retemaid
f > tsallaB ;thguard )b :ytilibarvueonaM
)c tsurhT lortnoc
~1 dedaoL ;tnemecalpsid
)d aeS :ruoivnheb
)II tsallaB ;tnemecalpsid
)1 tnemecalpsiD
)j dedaoL ;mirt and
)2 ytilibatS
)k tsallaB .mirt )3 owT epor gnileeh
SI 3991:6407
)e :noitcurtsnoC erehw
)1 skrawluB and sesuohkced cificeps llup ni kN/ 100 kW,
Ts =
)2 woB C = ,tnatsnoc
)f gniwoT raeg dereviled rewop ni kW, and
P =
)g gnittiftuO and tnempiuqe evisulcni fo erif D -3 relleporp retemaid ni .m
gnithgif tnempiuqe
morF lairt sisylana fo a elbaredisnoc rebmun fo
elgnis wercs tugs dettif htiw nepo srelleporp
3.2 Performance (s.s.)
ro troK sreddur and a detimil rebmun fo niwt
3.2.1 wercs ( t.s. ) tugs and retaw ,srotcart seuIav rof
Static Bollard Pull
C evah neeb devired as nwohs :woleb
nI ,tcaf eht drallob llup sdneped no eht dellatsni
,rewopesroh eht norsluporp ,ycneiciffe eht epyT C
gnidaol fo eht relleporp tpews aera and eht lluh
.S.S gut htiw troK reddur 116
.ycneiciffe oT an ,renwo eht arretirc fo drallob
llup ylno syevnoc a detaler enigne fo a niatrec .S.S gut htiw nepo relleporp 85
rewopesroh ni a laicremmoc esnes .ylno ehT t.s. gut htiw nepo relleporp 80
drallob llup nretsa is yllauqe tnatropmi as eht
retaW rotcart htiw elgnis relleporp 59
daeha drallob ,llup ecnis eht gnikarb rewop has
yilacitcarp eht emas ecnacifingis as gnitarelecca 3.2.3.1 A lanoisnemid-non tneiciffeoc nwonk as
ytiliba fo eht gut yllaicepse elihw handling egral erugif‘ fo ’tirem as nevig ,woleb hcihw is -eneg
ships. roF llup-hsup ship handling ,krow eht wot yllar desu ni tfarcrra ,dleif yam osla eb desu rof
epor llup shall eb fo eht emas edutingam ni htob evitaler assessment fo eht ecnamrofrep fo :gut
.snoitcerid ynA assessment fo eht llarevo ship
2/3T
handling ycneiciffe fo a gut shall eb detaler ot
=K
htob daeha and nretsa drallob .llup ,revewoH eht PDJP
pihsnoitaler neewteb drallob llup and -esroh
rewop nac eb dehsilbatse yletamixorppa htiw erehw
eht gniwollof :alumrof
K = erugif fo ,tirem
roF nepo wercs P = O-014 ( PHB x D p/s T = tsurht ni kN,
roF troK elzzon P = 0.02 ( PHB x D )2/s P = dereviled rewop ni kW,
relleporp retemaid ni ,m and
D =
erehw
p = ytisned fo retaw ni kg/ms.
P = drallob llup ni ;sennot and
ehT lacipyt seulav fo K era nevig :woleb
D = relleporp retemaid ni .sertem
epyT K
3.2.2 Free Running Speed S.S. gut htiw troK reddur 0.13

ehT gut srelleporp era ton yllamron dengised gut htiw nepo relleporp 0.085
rof this .noitidnoc ,revewoH eht eerf gninnur t.s. S.S. htioV redienhcS relleporp 0.08
deeps is deniatniam yb enigne revo ,sdeeps
elballortnoc hctip srelleporp ro emos ralimis 3.2.4
Propeller Diameter
.ecifitra ,rehtruF a rehgih hctip oitar wercs is
less elbitpecs ot ecaf noitativac ni eht eerf ehT relleporp retemaid is dengised ot poleved
gninnur .noitidnoc tuB llits ti is eht -isnopser eht mumixam drallob llup ni nortaler ot eht
ytilib fo eht renwo ot draw eht noitnetta fo eht elbaliava .rewop ehT noitceles fo relleporp
redliub ot eht sregnad fo evissecxe noitativac retemaid is detcirtser yb eht thguard-retfa fo eht
gnirrucco and damaging eht troK elzzon ro nepo .lessev ,rehtruF eht rewop ot evig eht deriuqer
.relleporp drallob llup dluoc eb deniatbo yb gnitpoda niwt
wercs ,srelleporp elgnis wercs htiw troK reddur
3.2.3 ro htioV redienhcS .relleporp ,yllareneG ti nac
Specific Pull
eb nwohs that rof hgih drallob llup morf a
A elpmis pihsnoitaler neewteb cificeps llup and elgnis ,wercs delpuoc htiw a noitcirtser fo
and rewop gnidaol selbane ot tes a standard ,thguard-gnitarepo nac ylno eb tem yltneiciffe yb
against hcihw eht ytilauq fo ecnamrofrep yam eht esu fo troK reddur ro htioV redienhcS
eb degduj ni yna ralucitrap .esac ehT cificeps .relleporp
llup no eht drallob is detaler ot eht rewop
gnidaol no eht relleporp yb eht gniwollof 3.3 ytilibarvueonaM
:alumrof
pihS handling tugs shall evah eht ytiliba ot
ervueonam yldipar nihtiw denifnoc .ecaps sihT
TB = (CP/Ds) - j+
3
1s 7046 : 199.3
ytilsuq, is degduj yletamixorppa yb eht gniwollof ytilibarvueonam ro roop nretsa .ecnamrofrep
stset deirrac tuo as a trap fo eht trials :enituor sihT regnad is detautnecca yllaicepse htiw tsaf
a) ehT emit ot etelpmoc a elcric fo 360” at gnivom gnimoc-no wot fo a egral .reknat A eslaf
evom no eht tugs’ trap ni hcus a esac yam esop a
mumixam reddur ,elgna ecno eht ship has
suoires .drazah oT etaivbo this regnad eht gut
delttes otni .nrut oT a niatrec ,tnetxe this
has ot eb dedivorp htiw a yrotcafsitas eerged fo
emit is tnedneped no eht ship’s deeps as
evitisop ytilibarvueonam htob daeha and ,nretsa
llew as eht epyt fo reddur and reddur
rehtegot htiw tneiciffus etar fo .noitarelecca
.aera ehT reddur aera ni smret fo laretal
sihT lliw elbane eht gut ot reets flesti raelc fo
ecalp aera is yllareneg fo eht redro for 6 ot
regnad and that oot .ylkciuq ,suhT elihw
6.5 .tnecrep
gnidiced eht rewop fo eht gut rof a deriuqer
b) ehT retemaid fo eht gninrut .elcric An drallob ,llup eht noitseuq fo gnidivorp elauqeda
etamixorppa assessment is edam ni smret noitarelecca is osla ot eb .deredisnoc An
fo htgnel fo ship. noitarelecca rotcaf denifed as swollof yam eb
c> ehT emit nekat rof eht gut ot hcaer daed desu as a :ediug
pots nehw gninnur daeha at mumixam dralloB llup x 100
deeps and lluf nretsa is .deilppa niagasihT noitareleccA rotcaf =
tnemecalpsiD
is an etamixorppa .tnemerusaem roF eht
esoprup fo ecnadiug eht gnirvueonam sihT rotcaf has ot eb deredisnoc ni noitaler ot
scitsiretcarahc fo ruof lacipyt tugs era tnemecalpsid ecnis a hgih eulav fo this rotcaf
nevig :woleb yam eb deniatbo yb gnicuder eht tnemecalpsid
hcihw lliw ni nrut tceffe eht handiness fo eht
epyT Time on D . ia of . .gut
Circle Cwcle in A!?& Remarks
Terms of to Stop gniruD lairt ,stset tnemerusaem fo lacitcat
Seikds Length in sretemaid yam eb .nekat ,rehtruF ennodeuiD
(L) Seconds slaripS ro fpmeK servueonam yam osla eb
.S.S gut htiw 58 2.5 L 33 - deirrac .tuo lluF elacs derusaem lacitcat
retemaid trials dluoc eb deirrac tuo ni desolcne
troK
skcod htiw snaem rof gnirusaem eht noitelpmoc
.S.S gut htiw 61 2 ot 2.5 L 31 - fo eht .elcric desaB no elbailer lairt ,stluser
nepo -orp stneiciffeoc evah neeb detseggus ot elbane
rellep eht rengised ot erapmoc detupmoc lacitcat
sretemaid at eht ngised .egats
t.s. gut :htiw
nepO -orp 47 ot2 2.5 L 22 At -ixam 3.4 tsurhT lortnoC
,srellep and mum mpr
ehT regral eht ecrof hcihw a gut is deriuqer ot
using
timsnart ot eht assisted ship, eht erom esicerp
mleh
shall eb eht lortnoc ni redro ot diova egamad ot
enola
wot epor and gniwot .raeg ,eroferehT ni assess-
niwT 80 0.5 ot 1.0 L - At -cuder gni a tug’s ycneiciffe noitaredisnoc shall osla eb
sreddur de mpr nevig ot its ytiliba ot reviled a sselpets adjust-

using -ne elba tsurht and ylralucitrap a small tsurht htiw
senig and .edutitcaxe
mleh
ehT revoegnahc morf daeha ot nretsa gninnur
retaW -cart 46 - 8 - and ,asrev-eciv that is, servueonam hcihw era
rot htiw tneuqerf nehw gnimoc edisgnola ro gnitteg
elgnis ,yawa esiar smelborp rof ,enigne ,gnilpuoc ,raeg
relleporp tsurht gniraeb and noisluporp units as llew as
rof wot sepor and gniwot .sraeg A ,gut hcihw
tI is devresbo morf eht evoba that eht retaw
nac llup yllauqe ni eno noitcerid and push ni
rotcart is roirepus ot all eht rehto sepyt ni
eht etisoppo noitcerid gnirud ship handling,
.ytilibarvueonam ehT troK reddur gut has eht
seod ton evah ot etsaw emit ni gnignahc its nwo
euqinu ytiliba ot reets .nretsa nI esac fo esrever
.noitisop
ro noitcuder raeg ,xob enigne has ot eb deppots
erofeb .gnisrever ehT emit nekat ot pots is a 3.5 ycnegremE gnireetS noitisoP
noitcelfer fo eht deeps at hcihw eht tfahs
An ycnegreme lacinahcem gnireets noitisop is
noitator yam eb desrever and eht ytiliba fo eht
ot eb dedivorp ni eht gnireets raeg
relleporp ot kcip up nretsa .rewop
.tnemtrapmoc
3.3.1 pihS handling tugs era tup ni a suolirep
3.6 tnemecalpsiD
noitisop nehw taking a wot epor ro nehw gniyrt
ot pots eht .wot ehT remrof esac is a ecruos A gut htiw ylevitarapmoc wol ,tnemecalpsid
fo regnad ylralucitrap rof a gut htiw roop nehw gniogrednu lluf rewop trials no eht ,drallob
SI 7016 : ’3.991
,sreehs morf eno edis fo eht kcod ot eht rehto fo eht emas .epyt ,revewoH eht noitisop dluoc
and lluf lortnoc nac ylno eb deniager nehw eht eb deweiv morf owt stniop fo ,weiv :yleman
rewop is decuder .ylbaredisnoc sihT setartsulli
)a eht scitsiretcarahc fo eht ytilibats ;evruc
eht latnemadnuf ecnatropmi fo gnidivorp
and
etauqeda tnemecalpsid ni noitaler ot mumixam
drallob .llup ,morF eht elbaliava data ti yam eb )b eht scitsiretcarahc fo eht metsys fo secrof
assumed that a eulav fo 6-O ot 0.7 kN rep ennot gnitca no eht .lessev
tnemecalpsid yam eb desu and hcus slessev era
With a gut ew yam assume that eht gnileeh
ton ylekil ot evah yna lortnoc .smelborp ehT
tnemom eud ot lanretxe secrof is y!pmis detaler
lapicnirp lluh snoisnemid knil eht tnemecalpsid
ot eht tnempoleved fo eht mumixam drallob llup
htiw eht drallob .llup oT etadommocca eht
ni an athwartships noitcerid and eht ytilibats
relleporp ro troK reddur fo etauqeda ,retemaid
standards detpoda yb emos fo eht seirtnuoc era
eht thguard-retfa has ot eb .etauqeda roF
desab no this .hcaorppa ehT ytilibats standard
lanoitnevnoc ship handling tugs eht gniwollof
rof a lamron daol noitidnoc is detacidni a5
lanoisnemid noitaler stneserper doog :ecitcarp
:swollof
)a ehT oitar fo htgnel neewteb -idneprep
a>
sraluc ( PBL ) ot htdaerb dedluom shall ehT cirtnecatem thgieh ( MG ) nehw
eb fo eht redro fo 3.25 ot 3.50. detcerroc rof eerf ecafrus shall ton eb
less than 60 mc rof ai; PBL fo 15 m ron
)b ehT oitar fo htdaerb dedluom ot htped
less than 90 mc rof an PBL fo 30 m htiw
dedluom shall eb fo eht redro fo 2.
raenil noitalopretni ni .neewteb
)c ehT thguard-retfa dedluom shall eb
yletamixorppa lauqe ot eht htped b) ehT mumixam eulav fo gnithgir revel
( ZG ) shall ton eb less than 20 mc rof an
.dedluom
PBL fo 15 ,m ron less than 36 mc rof an
)d ehT ekar fo leek shall eb tuoba 1 ni 20. PBL fo 30. m htiw raenil noitalopretni ni
)e ehT draobeerf shall eb tneiciffus ot .neewteb
edivorp an elgna fo kced egde noisremmi c> ehT mumixam eulav fo ZG shall rucco at
fo ton less than 10 .seerged
tuoba 30 .seerged
)f ehT kcolb tneiciffeoc shall eb ni eht egnar
d) ehT elgna fo gnihsinav ytilibats detaler ot
fo 0.48 ot .25-O
eht lluh enola shall eb tuoba 60 .seerged
NOTES )e ehT kced egde noisremmi shall eb ton
less than 10 .seerged sihT is yllareneg
tneicifltS data era ton elbaliava ot elbane eht
scitsiretca1rahc fo retaw srotcart ot eb desilanoitar ni assured yb gnidivorp a muminim free-
a ralimis yaw tub eht tnemecalpsid no a nevig .P.B.L draob fo 46 mc rof an PBL fo 15 m and
si yllareneg fo eht emas redro sa rof eht lanoitnevnoC 76 mc rof an PBL fo 30 m htiw raenil
,lluh tslihw eht rewol cificeps llup fo eht htioV -orp noitalopretni ni .neewteb
rellep yllamron serusne taht eht pihsnoitaler neewteb
dna tnemecalpsid si llew woleb eht gnitimil
pull
eulav .detacidni hguohtlA eht tnempoleved fo eht assumed
2 ehT ecnatropmi fo tnemecalpsid rof sgut si tlef ni gnileeh tnemom is neve less ylektl ni eht esac fo
ecitcarp tub ereht seod ton mees ot eb yna lanoitar eht retaw ,rotcart ti is yllareneg dnuof that eht
noital!alpxc rof .ti ,ylbaborP eht lacitrev dna -ignol detseggus ecnamrofrep level yam eb tem
lanidut noitubirtsid fo siht tnemecalpsid syalp na
tuohtiw .ytluciffid
tnatropmi .trap tI yam eb elbissop ot nialpxe siht yb
gniredisnoc eht eslupmi :noitauqe
I = C .z tlc = m. dV gniredisnoC a gut gnieb dewot esiwedis at a
ydaets deeps fo Vt, ni nredom ecitcarp eht MG
ereh dluoc eb detamixorppa ot eb lauqe ot .02jt2V tI
,1
is ,suoivbo eht eulav fo Vt lliw yrav morf gut ot
I = ,eslupmi
.gut tuB this pihsnoitaler skaerb nwod at yrev
Z = evitcart ,troffe wol .sdeeps rehtegoT htiw eht MG a elbanosaer
dt = egnahc ni ,emit egnar fo evitisop gnithgir arms and a muminim
m = ,ssam dna eulav fo ZG era osla .deriuqer A muminim eulav
dV = egnahc fo .yticolev rof ZG yam eb dedrager as .3/MG ehT rettal
eulav shall eh deveihca at eht elgna fo kced
sihT largetni nac eb detaluclac rof hcae -ividni
.noisremmi elihW gninrut at ,deeps egral selgna
dual ship gnildnah ,noitarepo tub this seod ton
fo leeh nac eb .depoleved noitcudeR fo this
enimreted eht ecnamrofrep fo ship handling gut
elgna nac eb deveihca yb a wol ertnec fo
ni .ecnavda
.ytivarg yB gnitupmoc eht lacitcat retemaid and
ecneh eht lagufirtnec ecrof ,gnitca eht elgna fo
3.7 Stability
leeh yam eb assessed at ngised egats and this
ehT ytilibats standards rof yna ralucitrap lessev elgna shall ton deecxe eerht sretrauq fo eht
cra ylno- degduj yb nosirapmoc htiw rehto slessev elgna fo kced .noisremmi
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SI 7046 : 1993
3.8 Tow Rope Heeling 3.10 gniwoT raeG
A metsys ni hcihw the tow rope si attached ot gniwoT gear smrof na laitnesse gnittif of the
the gut at a noitisop aft of the tniop of ruobrah .gut yllareneG 6 x 24 leets eriw rope
noitacilppa of ,tsurht si yllacisnirtni safe ecnis htiw erbif core si .desu ehT sretemaid dneped
the ycnednet llahs syawla eb for the force dna no the drallob llup for leets eriw ropes dna for a
aft sixa of the gut ot eb dellup otni enil htiw daol of 3 ot 3.5 semit drallob llup of the .gut
the tow rope. sihT citsiretcarahc lliw eb ehT rope gear si dengised for a daol of 2.5 semit
suoivbo nehw a gut sniamer yranoitats ni the drallob llup for citehtnys ropes. selkcahS dna
water tuohtiw the ytissecen for mleh lortnoc sgnittif are yllausu detceles ot evig a gnikaerb
elihw gniyrrac na nretsa drallob llup test. daol tnelaviuqe ot that of the citehtnys rope.
,revewoH the tnemom decudorp yb the deilppa suhT the gnikaerb daol of these tnempiuqe
forces llahs eb hcus as ot gnirb the lessev otni semoceb erom naht xis semit rieht safe gnikrow
enil htiw the tow. ehT ytilibats ni ,lareneg lliw .daol
dneped no the noitisop of the gniwot hook dna
ton whether the noisiuporp si at the wob or si
at the nretsa of the .gut sguT llahs eb dettif trapA morf the tnemhcatta noitcnuf of the tow
htiw gnithgir-fles gnisaeler-kciuq hooks hcihw rope. ti has osla ot act as shock .rebrosba ehT
are elbapac of gnieb desaeier rednu noitidnoc of snoisnetxe of the rope whether leets or -ehtnys
mumixam .llup cit for a deificeps drallob llup yam eb desu as
ediug ot assess rieht ytiliba ot brosba shock.
3.9 Construction yllareneG ti si dnuof that the noisnetxe
detaluclac for etisopmoc ropes are yrotcafsitas
for denifnoc noitarepo of .sgut
The skrawlub llahs syawla eb depols draobni ot
tneverp gnieb evots ni dna gnittimrep the gut ot oT eziminim the regnad of the gut gnizispac
brosba snoisilloc gnola the tsegnorts ,tnil that vi i t 11 a neddus gnippans of the tow rope, the
,si rroitcc?:rctni of the gut :edis gnitalp dna deck. ngised of tow hook syalp na tnatropmi part. A
ehT ecnatsid neewteb the krawlub liar dna the :lpmis mrof si ot esu a detovip laidar mra
esuohkced llahs cb a muminim of 67-O m no tuohtiw yna track ,troppus suht gnirrefsnart the
rellams slessev dna as egral as elbissop -sisnoc enil of gniwot ,llup nehw no the ,maeb reraen
tnet htiw the htdiw .dedivorp ot the ertnecatem dna ybereht ecuder the elgna
of .lcth tA the dne of siht ,mra the hook nac eb
fcaehrcvG swodniw ni the sesuoh-leeh are detnuom ni hcus a yaw so that siht dluoc eb
laitnesse nehw gnildnah yrev egral sreknat dna deppirt yb desserpmoc ria morf a ecnatsid dna
klub .sreirrac snoitcerE no decks llahs eb so nehw drppirt the hook sgnirps ot rest tuohtiw
degnarra as ot evig a raelc weiv aft neewteb gnitrapmi yna shock gnidaol ot the .msinahcem
.meht ehT swodniw dettif ni sesuoh-leehw llahs
eb at a rewol thgieh naht ni lamron ot evig a
Rope gnidiug gear hcus as leviws riaf ,dael
good weiv of the deck tuohtiw gnivah ot evom
gniwot sliar ot troppus the ,knuj etc, are osla
yawa morf the .slortnoc
yrassecen .sgnittif
3.9.2 WOB

sA the ruobrah gut lliw eb yllamron gnihsup as 3.10.1 roF gnillup ,seitud ertnec enil gniwot
hcum as ti si ,gnillup the wob iliw eriuqer ot post t!i the forward dne of the gut llahs eb
evah a erom denettalf lacitpille shape ni order dengised dna dettif ot dnatshtiw the mumixam
ot niatniam a elbanosaer aeic of the nretsa llup of the .gut
bow
repmub ni tcatnoc htiw the .pihs ehT wob si
dedivorp htiw gninehtgnerts pad for gnixif the
3.11 gnittiftriG dna Equipment Inclusive of eriF
.rednefwob ,yllareneG wolloh 1acireitnilyc rebbur
gnithgiF tnempiuqEI
snoitces are dexif ,yllacitrev as gni~roihsuC pads,
the srednef gnieb deniater ni ecalp yb leets srab
ehT snoisnemid of serutcurtsrepus no -pihs
gniog hguorht the elddim of .meht A ralimis
g~rill:>rah sgut evah ot eb detsujda ot cater for
rednef si osla dexif at the nrets of the .lessev
gnir)rrac the erif gnithgif tnempiuqe ot laed htiw
sihT metsys serusne mumixam modeerf ot
egral sreknat dna klub sreirrac ni rieht thgil
trotsid rednu .daol gnrtatoR citamuenp wob
deol .snoitidnoc ytirojaM of egral pihs gnildnah
sredz!ef yam osla eb .desu
zgl:t wen yrrac erif gmthgif ,tnempiuqe detnuom
hgih hguone ot elbane water dna maof stej ot
eb detcerid no ot the deck of these egral slessev
An cnignc gnisac si ot eb dedivorp evoba the ni rieht thgil .noitidnoc nI emos cases the
enigne ot etatilicaf riaper dna lavomer of enigne rotinom mroftalp dettif no top of the -leehw
dna other yrenihcam morf the enigne .moor esuoh :a a thgieh of 9.2 m evoba water enil dna
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