The navigational computer was a circular slide rule used for calculating height and air speed corrections when flying an aircraft. The front cover lifts to reveal a further calculator used to solve vector triangles and plot course alterations. The device was intended to be strapped to a pilot's leg. The instrument was made by White and Gillespie (Melbourne) Pty Ltd c 1940 for the RAAF and used during WW2.Black metal box with silver metal flap top cover affixed with rotating circular rule . Two adjustable belts are affixed to the base of black box. A small spiral bound note book is contained beneath the flap top. RAAF Computer Navigational system MK. III. D. Serial No WG 2833navigation, raaf, computer, aircraft, ww2, 1940

LORAN is a radio navigation system.Marked Confidential. Khaki coloured soft cover book with black print. Illustrated with drawings, charts, mathematics, 45 pages.Some random numbers written on front top right.books reference/military/manuals, radio

Provides a pocket size Map of central Melbourne, Australia, detailing Inner City Attractions, including points of interest, shopping, restaurants, and train stations, with a grid reference system for navigation. Published by Swanston Trams c1999. Has a photo of tram 2097 in The Met livery on the cover.Demonstrates a pocket sized map published by Swanston Trams.Map - pocket - 18 fold - printed in full colour with light card cover sections.tramways, melbourne, tram services, swanston trams, map, b2 class, tram 2097

This is a set of nine photographs of technicians from the Royal Australian Survey Corps operating aerial surveys equipment c1980s. In photo .1P, CPL Steve Gloster was operating a RC10 air survey camera mounted in an Australian Army Pilatus Porter aircraft. The Wild RC10 super wide-angle air survey cameras were first introduced in 1971, were equipped with virtual distortion free lenses for supplementary, spot and special photography. In photo .2P, Roger Rees was operating Air Profile Recorder (APR) equipment. it was possibly taken during OP NERVOSE 84, sometime between June – August 1984 when based in Ngukurr, Northern Territory. The APR was operated at this time in unison with an RC10 camera. In 1963 the Royal Australian Survey Corps introduced the radar airborne profile recorder (Canadian Applied Research Ltd, Mark V, Airborne Profiler Recorder) was introduced for 1:100,000 mapping to replace terrain heighting by aneroid barometry. Later in 1974-1975, the Australian developed WREMAPS II airborne laser terrain profile recorder was introduced. In photo .3P, Neil Jones appears at the door of Airsearch Beechcraft Queen Air aircraft, Registration / Serial VH-MWX. This aircraft was typically used by RA Svy on air survey operations flying mission with Aerodist, APR and RC10 camera equipment. The Australian Army’s Pilatus Porter (short take-off and landing turbo propeller) was also equipped with a Wild RC10 aerial mapping camera for identification photography. The Pilatus Porter was also used on RA Svy’s map field checking operations. Photo .9P was taken at a survey station at an unknown location. In this photo an Australian Army Kiowa Light Observation Helicopter (LOH) is supporting a field survey party undertaking Magnavox AN/PRR-14 portable Doppler satellite observations. The satellite receiver’s antenna is plumbed over the survey ground mark surrounded by white plastic panels. The panels were used to identify the survey station on aerial photography. Introduced in 1974–1975, the Magnavox AN/PRR-14 portable Doppler satellite (US Navy Navigation Satellite System – TRANSIT) receivers and computing system provided independent three-dimensional point positions anywhere in the world, anytime, in any weather accurate to about 1.5metres with precise satellite ephemerides. The Bell OH-58 Kiowa LOH was a family of military helicopters used for observation, utility, and direct fire support. It was identified by RA Svy in the mid-1970s that considerable time was lost in replacing unserviceable remote equipment by road. Therefore Aerodist operations (pre-dating satellite receiver operations) were fully supported by Army’s Kiowa LOH aircraft. This is a set of nine photographs of technicians from the Royal Australian Survey Corps operating aerial surveys equipment c1980s. .1P to .3P, .5P to .9P - Colour and black and white photos on photographic paper and scanned at 300 dpi. .4P - Colour photo on 35mm slide film and scanned at 96 dpi. .1) & .2) - Photo, black & white, c1980s, CPL Steve Gloster operating an RC10 air camera. .3) - Photo, colour, 1984, Roger Rees operating Air Profile Recorder (APR) equipment. .4) - Photo, colour, c1980s, Neil Jones at the door of an Airsearch Beechcraft Queen Air aircraft, typically used by RA Svy on air survey operations. .5) - Photo, colour, c1980s. A Beechcraft King Air aircraft, also used by RA Svy on air survey operations. .6) - Photo, colour, c1980s. An Australian Army Pilatus Porter, used by RA Svy on air survey and map field checking operations. SGT Peter Mustart is possibly in the foreground. .7) to .8) - Photo, colour, c1980s. An Australian Army Pilatus Porter and unidentified personnel, used by RA Svy on air survey and map field checking operations. .9) - Photo, colour, c1980s. An Australian Army Kiowa helicopter supporting a field survey party undertaking Magnavox AN/PRR-14 portable Doppler satellite observations. There are biro marks on photos .4P to .9Proyal australian survey corps, rasvy, army survey regiment, asr, fortuna, aerial surveys

The Orient Steam Navigation Company Limited launched the Ocean Liner RMS Orion in 1934 and it remained in operation until 1963. The twin screw steamship was built to carry first class and tourist class passengers, over 1100 in all, plus almost 500 crew from Europe to Australia in comfort. The ship had a single funnel and a single mast. During WWII the vessel served as a troop carrier. The ventilation system noted on the plan, Punkah Louvre System, was designed for heating fresh air ventilation in buildings, ships and railroads. The system originated from Thermotank in Glasgow, Scotland. The ship plan for the RMS Orion is significant for its connection with the vessel. The ship was a leader, with several 'firsts'; the first Orient Line ship to be built with a single funnel since 1902, and the first to be painted in the Orient Line's livery, with a corn-coloured hull. It was the first liner to use chromium and bakelite materials for the surfaces throughout the ship, which provided greater resistance to the sea. It was also the first British ship to be fitted with air conditioning.Plan: printed provisional line drawing of the Orient line vessel "R.M.S. Orion". Inscriptions are printed on the plan. There are diagrams of six decks included in the plan. The ship is built for tourist "B" accommodation. The plan's Notices include details of the cabins including wardrobes, drawers, hinged seats, mattresses and bunk numbers. It also notes that there is a Punkah-Louvre System of Ventilation.Printed on the plan: "PROVISIONAL PLAN" "LOWER PROMENADE DECK" "UPPER CABIN DECK" "MAIN CABIN DECK" "LOWER CABIN DECK" "SUN DECK" "PROMENADE DECK" "ORIENT LINE / R.M.S. "ORION" / 24,000 TONS / TOURIST "B" CLASS ACCOMMODATION" "Owners: Orient Steam Navigation Company Limited"' "Managers : ANDERSON, GREEN & CO. LTD" "7 BISHOPS GATE, LONDON, E.C.2" "Chief Passenger Office : 14 Cockspur Street, London, S.W.1" "Branch Passenger Office : 1 Australia House, Strand, W.C.2" "notices"flagstaff hill, flagstaff hill maritime museum and village, warrnambool, maritime museum, maritime village, great ocean road, shipwreck coast, rms orion, plan, ship plan, provisional plan, orient line, orient ship, vissel orion, class b passenger accommodation, punkah louvre system of ventilation, deck plan, ship ventilation, ship floor plan, orient steam navigation company limited, anderson green & co ltd, steamship, ocean liner, war ship, troop carrier

This Engine Room section of a ship's telegraph system was part of the equipment of the Ports and Harbour ship the SS Rip. The vessel serviced and maintained the lights and buoys at Port Phillip Bay and Queenscliffe. The SS Rip was possibly the former gunboat "Albert". The ship’s communication system that was used from the late 19th century to early-to-mid-20th-century is called an Engine Order Telegraph (E.O.T.) or ship’s telegraph. The system has two parts, the Bridge Section and the Engine Room Section. The Bridge Section is usually mounted on top of a pedestal, and the Engine Room Section is often attached to a vertical surface. The standard commands printed or stamped onto the dial are the directions of AHEAD and ASTERN, and the speeds of STOP, FULL, EASY, STD. BY. and FIN. ENG. The ship’s pilot on the Bridge of a vessel sends his Orders for speed and direction to the to the Engine Room with the E.O.T. He moves the lever or levers, depending on the number of engines the ship has, to change the indicator on the Bridge Section’s dial to point in the new direction and speed of travel. This change causes the Orders to be duplicated on the Engine Room Section’s dial and a bell to signal the change simultaneously. The engineer then adjusts the ship’s engines and steering equipment to follow the pilot’s Order. The manufacturer, Mulne Bros., was a copper and brass works at 166 Sussex Street Sydney, in December 1892, and previously from 1870 at 128 to 130 Sussex Street. The company made and sold a wide range of equipment including machinery and gauges for the Railways.The Engine Room section is significant for being part of the communications system on the ship SS Rip, owned by Melbourne's Ports & Harbours department and used to service and maintain the navigation signals of Port Phillip Bay and at Queenscliffe in the mid-20th century. The dial is an example of marine equipment made in Australia and used for the safety of Victorian vessels. It is also significant for being made by an early Australian manufacturer, Milne Brothers of Sydney.Engine Room Section of a ship’s telegraph or Engine Order Telegraph (E.O.T.). The round metal dial has inscriptions stamped around the edges. The inscriptions are nautical terms for direction and speed and include the maker’s details. The dial was made by Milne Bros. of Sydney. It was part of the equipment on the "SS Rip" in Victoria.Black paint around dial: "MILNE BROS. / MAKERS / SYDNEY" "FULL EASY STD. BY " "FIN ENG. EASY FULL" ""ASTERN" "STOP" "AHEAD"flagstaff hill, warrnambool, maritime museum, maritime village, great ocean road, shipwreck coast, marine technology, marine communications, engine order telegraph, e.o.t., ship’s telegraph, bridge section, engine room section, ship’s engine telegraph section, marine telegraph, milne bros., milne brothers, sydney, copper and brass works, ports & harbours ship, ss rip, gunboat albert, service ship, maintenance ship