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NAVY ENGINEERING BULLETIN AUGUST 2002<br />

55<br />

The Iron Monarch is maintained<br />

in-class under Lloyds Register, in<br />

a 60 monthly Continuous<br />

Machinery Survey (CMS),<br />

similarly to HMAS WESTRALIA.<br />

The Iron Monarch’s propulsion<br />

plant consists of two medium<br />

fixed speed Wartsilla diesels with<br />

pneumatic clutches, a single<br />

reduction gearbox driving a single<br />

propeller shaft and CPP, plus a<br />

shaft alternator, thus giving it a<br />

very similar configuration to<br />

WESTRALIA. Three Diesel<br />

Alternators are fitted for use<br />

alongside and during ‘standby’<br />

(the merchant version of RAN<br />

‘specials’), whereas the shaft<br />

alternator carries the cruising<br />

electrical load.<br />

The ‘Standby’ crew consists of<br />

the Chief and Duty Engineer<br />

closed up in the MCR, and the<br />

Master and 1st Mate on the<br />

Bridge. The on-watch deck officer<br />

will give the Duty Engineer one<br />

hour’s notice prior to departure<br />

or entering harbor. The flash-up is<br />

achieved in around 40 minutes.<br />

The ship is required to achieve<br />

an operational availability of<br />

98%. Allowable maintenance<br />

periods consists of one eight<br />

hour lay period at Port Kembla<br />

per month, an annual 4-5 day<br />

period and a 30-monthly 12 day<br />

docking. Thus it is imperative that<br />

the crew conduct the majority of<br />

the required work, with minimal<br />

shore support. Full advantage is<br />

taken of machinery redundancies<br />

to allow work to take place at<br />

sea, and all windows of<br />

opportunity during cargo<br />

operations. Much maintenance<br />

and repair effort of the cargo<br />

gantries is necessary to minimise<br />

disruption to cargo operations.<br />

Gantry call-outs are the least<br />

favourite of the Duty Engineer,<br />

particularly where operator error<br />

(by the wharfies) is blamed!<br />

Nevertheless, the speed with<br />

which the defect is rectified is<br />

particularly critical.<br />

With the availability focus,<br />

Engineers are not burdened with<br />

ancillary duties, and the Deck<br />

Officers shoulder a large share of<br />

other work. In addition to keeping<br />

four hour 1-in-3 watches at sea,<br />

Deck Officers keep eight hour<br />

cargo watches alongside, are<br />

responsible for ballasting, crew<br />

welfare and administration,<br />

maintenance and lead of<br />

damage control equipment and<br />

exercises, victuals and domestic<br />

supplies, shore water and<br />

telephone connections and ship’s<br />

husbandry.<br />

To conclude, the commercial<br />

shipping environment differs<br />

significantly from RAN practice,<br />

each organisation being driven<br />

by different requirements and<br />

with different stakeholders in<br />

each ship. There are however,<br />

several examples of improved<br />

means of doing business that<br />

would certainly be applicable to<br />

RAN vessels, the auxiliary ships<br />

in particular. The substantial<br />

detail necessary to support such<br />

an argument would constitute<br />

another article.<br />

Footnote:<br />

An opportunity exists for ME<br />

officers to undertake similar<br />

short-term secondments to a<br />

merchant vessel. This<br />

experience will be of most<br />

benefit to Officers with a<br />

minimum of MEOCC<br />

qualification. For further details<br />

see <strong>Navy</strong> Engineering Bulletin<br />

Issue 2 February 2002 (page<br />

13).<br />

About the Author LEUT Raymond Howe<br />

graduated from ADFA in 1999. Awarded<br />

an MEOCC onboard HMAS WESTRALIA in<br />

November 2001, he is currently posted as<br />

the WA Liaison Officer at AASSPO, and<br />

WESTRALIA Maintenance Manager.<br />

Brief details on Iron Monarch<br />

• Roll On - Roll off vessel<br />

• 14,885 dwt (deadweight tonnes - cargo carrying capacity)<br />

• 179.3m - length overall<br />

• 24.9m - beam<br />

• 17.4m - depth<br />

• 8.8m - summer loaded draft<br />

• 15.5 knots service speed - on 31.5 tonnes heavy fuel oil / day<br />

Propulsion<br />

• 2 x 12V32 Wartsila four stroke cycle diesel engines 10,900 BHP (8020kW) driving through a reduction<br />

gearbox to a single controllable pitch propeller.<br />

Electrics<br />

• 1 x 500kW - shaft alternator<br />

• 2 x 600kW - diesel alternators<br />

• 1 x 1450kW - diesel alternator<br />

Manning<br />

• Master and three deck officers<br />

• Chief Engineer and three engineer officers<br />

• Chief Steward<br />

• Cook

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