DUNLOPILLOPTY LTDManufacturers of:• Dunlopillo Rubber Mattresses• BBB Innerspring Mattresses• Sleepmakers Innerspring Mattresses536 Clayton Road, South ClaytonVicTelephone: 551 1155• Restasleep Innerspring and Foam Mattresses• Seafoam Rubber Mattresses<strong>37</strong> Northern Road, West HeidelbergTelephone: 459 5133Pac*T«i THE NAVY <strong>May</strong>/JunV<strong>July</strong>. 1973New Patrol Boats for . • •THE ROYAL AUSTRALIAN NAVYOn Wednesday, <strong>May</strong> 7, <strong>1975</strong>, newspaperadvertisements invited applications from shipbuildersor their agents wishing to register theirinterest in tendering for the supply of patrol craftfor the Royal Australian <strong>Navy</strong>.<strong>The</strong> advertisements read'<strong>The</strong> new class of craft isexpected to have capabilitiessimilar to the ATTACKclass but with improvementsin some areas. Copies of theRegistration Package maybe obtained by applying inwriting by <strong>May</strong> 22, <strong>1975</strong>, to... <strong>The</strong> Department ofDefence (<strong>Navy</strong> Office),Canberra..Australia's then Defence Minister,the Honourable Lance Barnard. MP.issued a statement on <strong>May</strong> 6. <strong>1975</strong>that — the new class of patrol craftwould complement and in duecourse replace the existing ATTACKclass: and would have similar capabilitiesto the ATTACK class withimprovements in sea keepingability, range and speed, radar fornavigation and surveillance, andselfsufficiency for independentoperation appropriate to conditionsoff the Australian coast.Shipbuilders interested intendering would be required torespond with an existing patrol craftdesign. Modifications to suit Australianrequirements wou'd beagreed during a project definitionphase prior to the letting of aconstruction contract about November/December.1976. Constructionwould be in Australia or. alternatively.with lead craft built overseasand the remainder in Australia.No indication has yet been givenby the Minister of the number ofcraft to be built for the RAN. <strong>The</strong>generality of the press release andnewspaper advertisements wouldindicate that the AustralianGovernment is at this timecompletely open-minded regarding1 brief look ;it11 hut n nrnil.ihli•"Off the Shelfits patrol boat requirements and iskeen solely to ascertain what iscurrently available throughout theworld "off the shelf".<strong>The</strong> purpose of this hasty editorialis to acquaint readers with some ofthe types of patrol boats currentlyavailable and which undoubtedly willbe assessed by the RAN whenselecting new units.Opportunity was taken followingthe newspaper advertisements tocontact shipbuilders throughout theworld, known to be currentlyproducing patrol boats. "<strong>The</strong> <strong>Navy</strong>"contacted 21 shipbuilders, of which10 had responded at time of going topress. It is apparent that this lack ofresponse was brought about largelyby the short time limit givenoverseas shipbuilders to forwardinformation, viz. seven days.Before summarising the detailshastily collated from materialsupplied, it would be wise to examinethe specifications the RAN shouldlook for when selecting a suitablepatrol boat design and also brieflyassess the ATTACK class of PatrolBoat currently in service —<strong>The</strong> ATTACK (ACUTE) class ofpatrol boats in service with the RoyalAustralian <strong>Navy</strong> are basically ofgood design and well constructed —Displacement: 146 tons full load.Dimensions: 107.5 overall x 20 x7.3ft.Guns: one. 40mm: two mediummachine guns.Engines: Paxman 16 YJCM diesels:3500hp; two shafts: 21-24 knots.Complement: 19 (3 officers. 16sailors).Twenty boats built — five forPapua New Guinea and two havebeen transferred to Indonesia.<strong>The</strong> RAN now have 13 boats and ithas been calculated that by 1982/84they will reach the end of theiroperational life.<strong>The</strong> main criticism of the ATTACKclass boats has been of their topspeed — a little low and there is nodoubt that their performance inweather conditions over force 5 isinadequate, in short — the ship willsurvive longer than the crew in heavyweather.It would appear desirable that thisnew class of Australian patrol boatsshould be:(a) Of greater size but of nogreater draught than the ATTACKboats, as their ability to move in comparativelyshallow water is* a greatasset, particularly for interceptivework.(b) Higher speed has obviouspenalties in weight, space and fuelconsumption, but a sustained speedof 25 knots would be satisfactory.High speed is desirable to avoidcounter attack, either by missiles oraircraft.(c) Much greater offensivecapacity is necessary and obviouslysurface-to-surface guided missileswould be preferred with a somewhatlarger gain than the present 40mmgun. For operations in rough seas orat speed — the missile has theadvantage over the shell in that it iscontrollable after launching, so thatthe attitude of the boat at the time offiring is not critical.(d) Some degree of standardisationis advisable in machinery, bothIn radar, generating capacity and. ofcourse, main engines. <strong>The</strong>refore theuse of Paxman diesel engines mayhave some advantage both in theprovision of spare parts and in thetraining of technical staff inoperating and maintenanceprocedures.(e) Patrol boats should be able tobe maintained at forward bases as<strong>May</strong>/<strong>June</strong>/<strong>July</strong>, <strong>1975</strong> THE NAVY P«C« Eleven
ASHCNDESIGNED• Cut for Comfort• Cut for Style• Cut for FitTHE CHAMPIONS wear themWhy not YOU?fOrderCUSTOMWET SUITSONLY $69.95Direct andSave 20%Satisfaction GuaranteedMen's or Women'scustom-tailored to yourmeasurements withhigh pants and collar forsuper warmth. Finest wetsuit material, completelynylon-lined. Featuressewn seams, noncorrosivezipper. QuickdeliveryADD $4 postage handling.Sorry, no COD.Clip and mail this handycoupon today toDOLPHIN WET SUITS16 Ninth Avenue, Camptle. NSW, 2194Phone: 789 2999SEX.PageSUIT.TwelveSPECIAL INSTRUCTIONSCITY ADDRESS NAMESTATEDO&PITHE SUITS THATARE MADETO LASTCUSTOM SUIT MEASUREMENT CHARTmuch as possible and with ability tobe hauled out on existing or enlargedslipways at. say. Cairns and Darwin isan obvious advantage for vesselswhich operate in shallow and poorlycharted waters and where there isalways a risk of damaging apropeller or hull fittings. An obviousgain would be a vessel thatcould be beached by its crew topermit minor repairs to hull andscrews.(f) Habitability is certainlyimportant, both as an aid to crewefficiency and ^morale, so a standardnot below that of the ATTACK classboats is necessary.(g) Superstructure should be keptsmall — a wheelhouse. flying bridgeand ammunition storage. <strong>The</strong>rebyleaving the decks clear to give a widefield of fire to the armamentmounted on the fore and/or aftdecks. It also reduces the silhouette,making the craft less conspicuous.POSSIBLE ROLESAND APPLICATIONS(1) Anti-smuggling and infiltration.(2) Control of shipping.(3) Air/sea search and rescue.(4) Police duties — guarding andpatrolling the Australian coastlineand territorial water (fisheries patroland surveillance).(5) Harbour defence.(6) Small naval escort.(7) Mine laying/sweepingcapability.(8) Counter an attack by similarcraft of another nation.(9) Attack role against an enemy'sshore installations (ie. a smallcommando raid).PATROL CRAFT AVAILABLE"OFF THE SHELF'Brooke <strong>Mar</strong>ine LimitedLowestoftSuffolk, United Kingdom33 METREFAST PATROL BOATFour have been delivered toBrooke <strong>Mar</strong>ine's 33m craft combines economy oj size withscope. A variety of duties can be carried out by the crajt depending onthe armaments selected. With an all-steel hull and aluminium alloysuperstructure, the 33m has excellent sea-keeping qualities,performance and reliability. <strong>The</strong> craft's sea-keeping abilities may befurther improved by the installation of stabilisers. Weapon capabilitycan be adapted to particular requirements. <strong>The</strong> photograph showsone of the large patrol craft recently delivered to the Nigerian <strong>Navy</strong>.Depending on the engines specified, the craft can have a maximumspeed to 26.5 knots and a range oj considerably more than 2000 miles,which can be further extended to 3500 miles when the reserve fueltanks are utilised.Pakistan, four to Libya, four to NewZealand, two to Nigeria and anadditional two are under constructionfor Nigeria.SPECIFICATIONConstructionAll-welded mild steel hullwithaluminium alloy superstructure.PropulsionTwin marine diesel engines drivingtwin screws through reverse-reductiongearboxes.PerformanceUp to 26.5 knots depending onengines specified.Engines: Twin Paxman 12 YJCMdiesels; max bhp 1800; max speed23.5 (knots); max continuous speed(knots) 21 5 Twin Paxman 16 YJCMdiesels; max bhp 2400: max speed(knots) 26.5: max continuous speed(knots) 24.0.Note: All speeds given at half-loaddisplacement in UK conditions.With standard fuel load at 12knots. 2300 nautical miles.With reserve tanks at 12 knots.3500 nautical miles.StabMearsFin-type (operational extra).AccommodationArranged for a total complementof 21Commanding officer in separatecabin. —-Two officers.Two petty officers.16 ratings.All-electric galley with cooker,water heater. deep-freeze,refrigerator, etc.Wardroom.Separate toilet facilities torofficers, petty officers and ratings.<strong>May</strong>/JunVJuiy, <strong>1975</strong> THE NAVY Pift Thirteen