This is a set of 30 photographs of Royal Australian Survey Corps (RA Svy) personnel from Central Comd Fd Svy Unit (Adelaide) on Aerodist survey operation - Project C4 in Eastern Arnhem Land, Northern Territory in 1967. Photos of personnel were taken either at the operations base at Numbulwar or the main base at Gove (Nhulunbuy). RA Svy conducted nineteen Aerodist operations for 12 years from 1964 to 1975. Aerodist MRC2 was a tellurometer-based system adapted for aircraft to accurately measure distances between non-intervisible ground survey stations, using the aircraft as an intermediate station. Lower order geodetic results could be achieved by survey network trilateration. The measured distances between stations formed survey networks from which each station’s latitude and longitude was computed. Aerodist MRC2 was RA Svy’s major horizontal control survey tool for mainly medium scale topographic mapping (scale 1:100,000 Class A being spatially accurate to within 50 metres) in PNG, northern NT, north-west WA, Kalimantan Barat (West) Indonesia, Sumatra Indonesia, Gulf of Carpentaria and Cape York, QLD. In 1967, the Aerodist MRC2 Master equipment was installed in the aircraft featured in this set of photos, Executive Air Services’ (Essendon VIC) Grand Aero Commander VH-EXX. It was the same aircraft type and company contracted to Division of National Mapping for Aerodist MRC2 surveys. From July to October 1967 the aircraft was attached to Central Comd Fd Svy Unit (Adelaide - Major Don Ridge) on Project C4 eastern-Arnhem Land NT, where 317 Aerodist lines measuring 17,300 line miles were successfully completed. This was the most productive Aerodist project thus far. The most common helicopter used by RA Svy up to 1972 was the civilian Bell 47G-2 and the Sioux Light Observation Helicopters (LOH), the Australian Army’s equivalent featured in this photo set. These light observation helicopters had a limiting load carrying capacity of up to about 500 pounds. By comparison, one Aerodist team including two people weighed up to 1,500 pounds. Source: Royal Australian Survey Corps – Aerodist Years 1964-1975 by Peter Jensen. This is a set of 30 photographs of Royal Australian Survey Corps (RA Svy) personnel on Aerodist survey operations in Eastern Arnhem Land, Northern Territory in 1967. The photographs are on 35mm negative film and scanned at 96 dpi. They are part of the Army Survey Regiment’s Collection. .1) to .4) - black & white, 20th August 1967, Project C4 Aerodist Operations Base - Numbulwar, NT. .5) - Photo, black & white, 1967. Probable wrecked Indonesian fishing vessel. .6) to .8) - Photo, black & white, 1967. Unidentified survey operations base, L to R: unidentified personnel. .9) - Photo, black & white, 1967. Unidentified survey operations base, unidentified soldier driving a Haflinger 4x4 Light utility vehicle. .10) - Photo, black & white, 1967. Unidentified survey operations base, L to R: unidentified technician. .11) - Unidentified technician reading two survey altimeters to compute corrections to the measured distances for atmospheric refraction and to compute the sea level distances from the slope distances aircraft to the ground stations. .12) - Photo, black & white, 1967. Unidentified survey operations base, L to R: unidentified personnel. .13) to .16) - Photo, black & white, 1967. Unidentified personnel operating remote Aerodist MRC2 ground instruments. .17) to .18) - Photo, black & white, 1967. Unknown RA Svy office location. .19) to .20) - Photo, black & white, 1967. Aerodist MRC2 Master equipment. .21) to .22) - Photo, black & white, 1967. Aero Commander VH-EXX probably at Gove, NT, Central Comd Fd Svy Unit (Adelaide) – OC Major Don Ridge. .23) to .25) - Photo, black & white, 1967. Aero Commander VH-EXX probably at Gove, NT. Unidentified personnel. .26) - Photo, black & white, 1967. Aero Commander VH-EXX probably at Gove, NT. Aerodist antenna pods are visible on the aircraft. .27) to .29) - Photo, black & white, 1967. Australian Army Sioux Light Observation Helicopter (LOH) probably at Gove, NT. .30) - Photo, black & white, 1967. Panelled U337 survey station, visible as a white cross on aerial identification photo..1P to .2P – date and location on edge of film negative. .5P to .28P – no annotations .29P - annotated in white ‘RW-JEP Gove NT’ .30P - annotated in white ‘U337 Spool No1 Jun67’royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, aerodist, surveying, central comd fd svy unit

This is a set of four photographs of Bell 47G-2 helicopters used in Royal Australian Survey Corps Field Operations. c1965. From 1957, helicopter transport of survey parties revolutionised transport in remote areas. The most common helicopter used by the Royal Australian Survey Corps at this time was the civilian Bell 47G-2 and the Sioux, the Australian Army’s’s equivalent. equivalent. From 1964 an Aerodist MRC2 airborne Electronic Distance Measuring (EDM) system was extensively used for topographic surveys over long distances by trilateration to replace traverse requiring survey station intervisibility. In 1965 the command field survey unit personnel attached to the Army Survey Regiment’s Topographic Squadron were used mainly in support roles such as station clearing, tower operations, station monumenting, Aerodist computations, forward base operations, geodetic observations on the north-south traverse and logistic support for Remote teams. .1P is a photo of a civilian Bell 47G-2 helicopter Registration / Serial VH-UTB owned by Helicopter Utilities from Mascot, NSW c1965. In the background of this photograph is three personnel and vehicles at a field survey camp. The left-hand vehicle is a Willys Jeep with trailer and on the right is probably a Truck, 2 1/2 ton, 6x6, General Service GMC. The Bell 47G-2: VH-UTB was destroyed, and its pilot killed in tragic circumstances during a civilian survey operation on Cape York Peninsula in June 1966. .2P is a photo of a a civilian Bell 47G-2 helicopter Registration / Serial VH-IHB taken in Wyndham, WA. As the letters ‘TAA’ appear on the fuselage, the helicopter was charted from Trans Australian Airways. .3P is a photo of a Bell 47G-2: VH-UTC with survey camp in background. .4P is a photo of a Bell 47G-2 equipped with floats and unidentified personnel loading stores, possibly in Darwin. Acknowledgement: Royal Australian Survey Corps – Aerodist Years 1964-1975 Version 2021.0 Authored by Peter Jensen.This is a set of four photographs of civilian Bell 47G-2 helicopters used in Royal Australian Survey Corps Field Operations. c1965. The photographs were printed on photographic paper and are part of the Army Survey Regiment’s Collection. The photographs were scanned at 300 dpi. .1) - Photo, black & white, c1965, Bell 47G-2 helicopter: VH-UTB with survey camp in background. .2) - Photo, black & white, c1965, Bell 47G-2 helicopter: VH-IHB with survey station in foreground. .3) - Photo, black & white, c1965, Bell 47G-2 helicopter: VH-UTC with survey camp in background. .4) - Photo, black & white, c1965, Bell 47G-2 helicopter: Unidentified personnel loading stores possibly in Darwin..2P – annotated on bottom of photo ‘Wyndham Area – Helicopter drops observing party’ The other photographs are not annotated.royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr, surveying

This is a set of two photographs of Royal Australian Survey Corps and RAAF personnel on survey operations in PNG and possibly Indonesia circa 1975. The identified surveyor - Peter Presser served 20 years in the Australian Regular Army from 1970 to 1990. The UH-1H Iroquois helicopter (serial number partially obscured) appearing in photo 6339.2P was probably A2-379. From 1957 helicopter transport of survey parties revolutionised transport in remote areas. The most common helicopter used by the Royal Australian Survey Corps (RA Svy) up to 1972 was the civilian Bell 47G-2 and the Sioux Light Observation Helicopters (LOH), the Australian Army’s equivalent. These light observation helicopters had a limiting load carrying capacity of up to about 500 pounds. By comparison, one Aerodist team including two people weighed up to 1,500 pounds. After No. 9 Squadron (9SQN) RAAF (Iroquois helicopters) withdrew with the Australian force from Vietnam in December 1971, RAAF supported RA Svy operations with the UH-1H Iroquois helicopter for tasks of transport and resupply of survey teams. The UH-1H was capable of carrying at least three times that of the smaller Bell 47G-2/Sioux LOH helicopter and could also winch personnel and stores into difficult locations. A2-379 crashed killing the aircraft captain (FLTLT Ralph Taylor 9SQN) on impact and seriously injuring four near Wamena, Irian Jaya, Indonesia on survey Operation Cenderawasih 1977 (supporting 2 Fd Svy Sqn – Doppler satellite survey). Source: Royal Australian Survey Corps – Aerodist Years 1964-1975 by Peter Jensen.This is a set of two photographs of Royal Australian Survey Corps and RAAF personnel on survey operations in PNG and possibly Indonesia circa 1975. The photographs were printed on photographic paper and are part of the Army Survey Regiment’s Collection. The photographs were scanned at 300 dpi. .1) - Colour, black & white, c1975, Peter Presser undertaking survey observations in PNG with a Wild T2 Theodolite. .2) - Photo, black & white, c1975. Survey operations L to R: unidentified (x2), Peter Presser, unidentified. .1P and .2P – No annotations. royal australian survey corps, rasvy, army survey regiment, army svy regt, fortuna, asr

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