Used to mince fuel samples to measure moisture content Representative samples of fuel such as bark, leaves, twigs etc were minced and the moisture measured The availability of fuel to burn depends largely on its moisture content. When it exceeds 20-25% not much will burn, whereas 12-15% is generally ideal for fuel reduction burning, but if the moisture content drops as low as 7-10% virtually everything will ignite, and fire behaviour becomes extreme. During the afternoon of the Ash Wednesday bushfires on 16 February 1983 fuel moisture contents were recorded at Stawell as low as 2.7%. Fine fuels like leaves and bark can rapidly absorb moisture after a shower of rain, or from the air when the Relative Humidity (RH) is high, and the temperature is low. Conversely, they can also dry out very quickly. So even though the overall fuel quantity in the forest doesn’t change, the fine fuel availability can increase rapidly from zero after rain to many tonnes per hectare as the fuel dries out. This can happen over a few hours on hot and windy days. Heavy fuels like logs on the ground take longer to dry out. Fuel mincer Made at Altona as an alternative design to the commercial Spong Mincer With wooden plug to push fuel into the mincer and glass jar to collect sampleforests commission victoria (fcv), bushfire, forest measurement

Used to mince fuel samples to measure moisture content Representative samples of fuel such as bark, leaves, twigs etc were minced and the moisture measured The availability of fuel to burn depends largely on its moisture content. When it exceeds 20-25% not much will burn, whereas 12-15% is generally ideal for fuel reduction burning, but if the moisture content drops as low as 7-10% virtually everything will ignite, and fire behaviour becomes extreme. During the afternoon of the Ash Wednesday bushfires on 16 February 1983 fuel moisture contents were recorded at Stawell as low as 2.7%. Fine fuels like leaves and bark can rapidly absorb moisture after a shower of rain, or from the air when the Relative Humidity (RH) is high, and the temperature is low. Conversely, they can also dry out very quickly. So even though the overall fuel quantity in the forest doesn’t change, the fine fuel availability can increase rapidly from zero after rain to many tonnes per hectare as the fuel dries out. This can happen over a few hours on hot and windy days. Heavy fuels like logs on the ground take longer to dry out. Spong No 10 food mincerforests commission victoria (fcv), bushfire, forest measurement

Used to mince fuel samples to measure moisture content Representative samples of fuel such as bark, leaves, twigs etc were minced and the moisture measured The availability of fuel to burn depends largely on its moisture content. When it exceeds 20-25% not much will burn, whereas 12-15% is generally ideal for fuel reduction burning, but if the moisture content drops as low as 7-10% virtually everything will ignite, and fire behaviour becomes extreme. During the afternoon of the Ash Wednesday bushfires on 16 February 1983 fuel moisture contents were recorded at Stawell as low as 2.7%. Fine fuels like leaves and bark can rapidly absorb moisture after a shower of rain, or from the air when the Relative Humidity (RH) is high, and the temperature is low. Conversely, they can also dry out very quickly. So even though the overall fuel quantity in the forest doesn’t change, the fine fuel availability can increase rapidly from zero after rain to many tonnes per hectare as the fuel dries out. This can happen over a few hours on hot and windy days. Heavy fuels like logs on the ground take longer to dry out. Battery operated Fuel mincer. Plugs into 12 volt car cigarette lighter socket Adaption using parts from commercial food processor Made at Altona as an alternative design to the commercial Spong Mincer Glass jar to collect sampleforests commission victoria (fcv), bushfire, forest measurement

Used to mince fuel samples to measure moisture content Representative samples of fuel such as bark, leaves, twigs etc were minced and the moisture measured The availability of fuel to burn depends largely on its moisture content. When it exceeds 20-25% not much will burn, whereas 12-15% is generally ideal for fuel reduction burning, but if the moisture content drops as low as 7-10% virtually everything will ignite, and fire behaviour becomes extreme. During the afternoon of the Ash Wednesday bushfires on 16 February 1983 fuel moisture contents were recorded at Stawell as low as 2.7%. Fine fuels like leaves and bark can rapidly absorb moisture after a shower of rain, or from the air when the Relative Humidity (RH) is high, and the temperature is low. Conversely, they can also dry out very quickly. So even though the overall fuel quantity in the forest doesn’t change, the fine fuel availability can increase rapidly from zero after rain to many tonnes per hectare as the fuel dries out. This can happen over a few hours on hot and windy days. Heavy fuels like logs on the ground take longer to dry out. Adaption of a timber moisture meter made by the FCV radio lab to measure fuelforests commission victoria (fcv), bushfire, forest measurement

Used to measure moisture content by electric current resistance Representative samples of fuel such as bark, leaves, twigs etc were minced and the moisture measured The availability of fuel to burn depends largely on its moisture content. When it exceeds 20-25% not much will burn, whereas 12-15% is generally ideal for fuel reduction burning, but if the moisture content drops as low as 7-10% virtually everything will ignite, and fire behaviour becomes extreme. During the afternoon of the Ash Wednesday bushfires on 16 February 1983 fuel moisture contents were recorded at Stawell as low as 2.7%. Fine fuels like leaves and bark can rapidly absorb moisture after a shower of rain, or from the air when the Relative Humidity (RH) is high, and the temperature is low. Conversely, they can also dry out very quickly. So even though the overall fuel quantity in the forest doesn’t change, the fine fuel availability can increase rapidly from zero after rain to many tonnes per hectare as the fuel dries out. This can happen over a few hours on hot and windy days. Heavy fuels like logs on the ground take longer to dry out. Commercial timber moisture meter used to measure fuelDCR9-Tforests commission victoria (fcv), bushfire, forest measurement

Used to measure fuel moisture content Representative samples of fuel such as bark, leaves, twigs etc were minced and the moisture measured The availability of fuel to burn depends largely on its moisture content. When it exceeds 20-25% not much will burn, whereas 12-15% is generally ideal for fuel reduction burning, but if the moisture content drops as low as 7-10% virtually everything will ignite, and fire behaviour becomes extreme. During the afternoon of the Ash Wednesday bushfires on 16 February 1983 fuel moisture contents were recorded at Stawell as low as 2.7%. Fine fuels like leaves and bark can rapidly absorb moisture after a shower of rain, or from the air when the Relative Humidity (RH) is high, and the temperature is low. Conversely, they can also dry out very quickly. So even though the overall fuel quantity in the forest doesn’t change, the fine fuel availability can increase rapidly from zero after rain to many tonnes per hectare as the fuel dries out. This can happen over a few hours on hot and windy days. Heavy fuels like logs on the ground take longer to dry out. Adaption of a commercial timber moisture meter measure fuelTF 933 Cforests commission victoria (fcv), bushfire, forest measurement

Used to measure wind speed which is an important factor in fire behaviourHand held battery operated anemometer used to measure wind speedKestrel 3000forests commission victoria (fcv), bushfire, forest measurement

The Forest Fire Danger Index (FFDI) was originally invented by the grandfather of Australian bushfire science, Alan Grant McArthur, during the 1950s and ‘60s. Alan published his landmark paper, “Controlled burning in eucalypt forests” in 1962. Leaflet No. 80, as it was known, proved a turning point for forest and fire managers across Australia. More importantly, Alan was very practical forester and wanted his work to be useful to people in the field, so after several iterations he came up with the now familiar circular slide rule called the Forest Fire Danger Meter (FFDM). The Mk 4 version first appeared in operational use in 1967. This is the Mark 5 from 1973Alan McAthur's scientific legacy with the FFDI meter is unquestionably huge and has served forest firefighters very well over the decades.Cardboard fire danger meter Series of circular slide rules to calculate Forest Fire Danger Index (FFDI)forests commission victoria (fcv), bushfire

Used for planned burning operationsPressurised Rega burner wand, with pump and pressure gaugeOlindaforests commission victoria (fcv), planned burning, bushfire, hand tools

Used for planned burning operationsPressurised Bering burner wand, with pump and pressure gauge Adaption of a commercial garden weed burner Bering Engineering Ltd we’re originally based at Doman road, Camberley in Surrey, UKforests commission victoria (fcv), planned burning, bushfire, hand tools

Used for planned burning operationsPressurised burner wand, with pump and pressure gauge Adaption of a commercial garden weed burner X300forests commission victoria (fcv), planned burning, bushfire, hand tools

Used for planned burning operationsBurner wand - propane gas Adaption of a commercial garden weed burner Not used Hot Devilforests commission victoria (fcv), planned burning, bushfire, hand tools

Used for planned burning operationsBurner wand - propane gas Adaption of a commercial garden weed burner Not used forests commission victoria (fcv), planned burning, bushfire, hand tools

Used for planned burning operationsBurner wand - propane gas Adaption of a commercial garden weed burner Not used AirFlow Hot Rod MkIV forests commission victoria (fcv), planned burning, bushfire, hand tools

Used for planned burning operationsAdaption of a commercial garden weed burner Plastic backback with burner wand and hoseREGA forests commission victoria (fcv), planned burning, bushfire, hand tools

Used for planned burning operationsKerosene pump forests commission victoria (fcv), planned burning, bushfire, hand tools

The origins of the humble handheld driptorch have been lost in time. They are widely used for ignition in controlled burning operations in forest and grasslands. The “Pacific Forester“ with its short central wand and somewhat leaky ball-valve was made by the American Wajax company in the 1940s. The Pacific Forester is slightly different in design from the more robust and common “Panama” driptorch first manufactured in 1933 and used extensively by Queensland cane farmers. The Panama is closely related to the current “Firebug” used in Victoria which is manufactured by Rodney Industries in Brisbane and has an offset wand design which gives it good balance. The fuel is a mixture of petrol and diesel and every FCV District had their own closely-guarded secret formula ... 2:1, 3:1, 1:1, 4:1 or 3:2 ratio. There was also the choice of 91, 95 or 98 octane petrol mixed with summer or winter diesel. Occasionally some of the old Avgas or Jet-A1 lying around the depot was added with a splash of engine oil to make the mixture stick to the fuel to be ignited. The fuel mixed also varied between autumn or spring, heathland, mixed forest, or high-intensity slash burnsKerosene drip torch Short wand no valveBCR Holdingsforests commission victoria (fcv), planned burning, bushfire

Used for planned burning operationsAdaption of garden weed sprayer Pump action packpack Long handle, burner wick with control valveREGA 10909forests commission victoria (fcv), planned burning, bushfire, hand tools

Used for planned burning operationsAdaption of garden weed burner Heavy galvanised iron wand Gravity feed to burner wick with control valve and handleforests commission victoria (fcv), planned burning, bushfire, hand tools

The origins of the humble handheld driptorch have been lost in time. They are widely used for ignition in controlled burning operations in forest and grasslands. The “Pacific Forester“ with its short central wand and somewhat leaky ball-valve was made by the American Wajax company in the 1940s. The Pacific Forester is slightly different in design from the more robust and common “Panama” driptorch first manufactured in 1933 and used extensively by Queensland cane farmers. The Panama is closely related to the current “Firebug” used in Victoria which is manufactured by Rodney Industries in Brisbane and has an offset wand design which gives it good balance. The fuel is a mixture of petrol and diesel and every FCV District had their own closely-guarded secret formula ... 2:1, 3:1, 1:1, 4:1 or 3:2 ratio. There was also the choice of 91, 95 or 98 octane petrol mixed with summer or winter diesel. Occasionally some of the old Avgas or Jet-A1 lying around the depot was added with a splash of engine oil to make the mixture stick to the fuel to be ignited. The fuel mixed also varied between autumn or spring, heathland, mixed forest, or high-intensity slash burnsKerosene drip torch Long straight wand with control valveBell Backburnerforests commission victoria (fcv), planned burning, bushfire

Used for planned burning operationsKerosene burning wand with long wooden handle and wick Adaption of a commercial garden weed burner forests commission victoria (fcv), planned burning, bushfire, hand tools

Used for planned burning operationsVehicle mounter flame thrower. Developed at Altona workshopsforests commission victoria (fcv), planned burning, bushfire, hand tools

Aerial photos were used to make maps of forest types, timber resources, to survey logging areas and regeneration, to mark boundaries of public land and new plantations, to identify new roads and tracks, as well as for fire suppression. Infrared film was sometimes used to monitor insect and disease attack. The images needed to sharp, with high contrast, and in a large format (most were printed in B&W on 9-inch by 9-inch glossy photographic paper) with at least a 60% overlap to enable stereoscopic viewing and with a 20-30% side lap to allow for aircraft drift. Preferably, the photo scale was close to the final map scale avoid to problems when enlarging and to reduce distortion. Something was needed to supplement the very expensive and infrequent large-area photography programs. From the mid-1960s Victorian foresters began experimenting with small format 70mm and 35mm cameras which proved simple, practical, cheap and flexible. It was found that any SLR camera could be used provided it had a good quality lens and fast shutter speed (preferably down to 1/1000 second). Motorised cameras with a large film capacity had obvious advantages and were essential when access to the camera was not possible during flight. It is also essential for the shutter to operate at low temperatures and those lubricated with silicones were recommended. Components of a typical FCV Divisional Office system included – A Hasselblad or Vinten 70 mm format aerial camera with a focal plane shutter which could be electrically operated. Interchangeable lenses to allow for different photo scales and flying heights. Several large film magazines, which were loaded in a darkroom, each with a capacity of 100 feet or approximately 500 frames. A remote control for the camera in single-shot mode or automatic firing at selected intervals of 2 to 50 seconds. It also needed a frame counter. A light aircraft was modified with an internal mounting for the camera to keep it level and steady. Often a hole was cut through the floor for the lens. The aircraft also needed an inbuilt 12 Volt DC battery to operate the motorised camera shutter. The front passenger seat was generally removed to improve access to the camera. An Aldis drift sight was also fitted. This might be likened to an inverted periscope and is used to determine drift, to facilitate accurate navigation along flight lines and to determine the exposure interval for stereoscopic overlap. This item is kept at Traralgon.Hasselblad 500 ELM camera with 70mm lens, film pack, motor drive and battery In 1964 Hasselblad started production of a motorized camera, the 500 EL The EL/M is a modified version of the EL, "M" means modified, "EL" electric. Perhaps the most famous use of the Hasselblad camera was during the Apollo program missions when man first landed on the Moon. Almost all of the still photographs taken during these missions used modified Hasselblad cameras. forests commission victoria (fcv), forest measurement, surveying, mapping

This stereoscope was used to view a pair of separate and overlapping aerial photos as a single three-dimensional image. This smaller foldable unit could be easily used in the field but larger, mirror stereoscope was used in offices. The aerial images were used to map forest types, timber stands, new roads and tracks, firebreaks, boundaries of timber harvesting, plantations, bushfires, insect and disease attack and so on In 1928, the Forests Commission undertook its first major aerial photography project over 15,000 acres of forest which is said to be the first of its kind in Australia. During the Second World War, large areas of Victoria were photographed by RAAF and used to produce orthophoto maps. By 1945 aerial photography of 13,000 square miles (3.4 M ha) was completed, including much of the inaccessible eastern forests. The Forests Commission started developing its own small format photography in the early 1970s. Simple, cheap and rapid methods of obtaining photographs using 70mm and 35mm cameras were developedFoldable plastic stereoscope in box Benallaforests commission victoria (fcv), surveying, forest measurement

Alan McArthur from the CSIRO began his experimental burning program in the late 1950s near Canberra and published his landmark paper in 1962, “Controlled burning in eucalypt forests”. Leaflet No. 80, as it was known, proved a turning point for forest and fire managers across Australia. It led to the McArthur Forest Fire Danger Meter (FFDM) which first appeared in operational use in 1967 as the Mk 4. The CSIRO had developed its semi-automatic aerial incendiary machine dropping small capsules, with the first trial from a fixed-wing Cessna 337 at Manjimup in December 1965. In April 1969, the Forests Commission borrowed the second prototype of the CSIRO machine to carry out fuel reduction burning at Orbost. The success prompted the purchase of their own machine in 1970, which now sits in the Altona Museum. Pioneering machine in the development of aerial ignition in AustraliaAerial Incendiary Machineforests commission victoria (fcv), planned burning, bushfire aviation, bushfire

This stereoscope was used to view a pair of separate and overlapping aerial photos as a single three-dimensional image. Smaller units and could be easily used in the field but this larger, mirror stereoscope was used in offices. The aerial images were used to map forest types, timber stands, new roads and tracks, firebreaks, boundaries of timber harvesting, plantations, bushfires, insect and disease attack and so on In 1928, the Forests Commission undertook its first major aerial photography project over 15,000 acres of forest which is said to be the first of its kind in Australia. During the Second World War, large areas of Victoria were photographed by RAAF and used to produce orthophoto maps. By 1945 aerial photography of 13,000 square miles (3.4 M ha) was completed, including much of the inaccessible eastern forests. The Forests Commission started developing its own small format photography in the early 1970s. Simple, cheap and rapid methods of obtaining photographs using 70mm and 35mm cameras were developedFoldable metal stereoscope in wooden box with mirror covers Ex Dept of Defenceforests commission victoria (fcv), surveying, forest measurement

The Zeiss Sketchmaster was used to transfer information from aerial photographs onto scale maps. The operator views the aerial photograph and the map simultaneously and manually traces detail from the photograph onto the map. It utilises the principle of the camera lucida, patented in 1806. Various lens combinations were used on a to adjust for scale and then “rubber sheet” the image to line up topographic features like streams and roads. The photo information was then laboriously transferred using a light table onto large A0 paper maps or translucent drafting film. The maps were later hand coloured with either Derwent pencils or delicately painted with Pelikan ink wash. This item is kept at Erica.Zeiss Sketchmaster. c1970s. Includes adjustable stand, various lens in sperate box, adjustable light, map holder and magnetsforests commission victoria (fcv), forest measurement, mapping, surveying

Alan McArthur from the CSIRO began his experimental burning program in the late 1950s near Canberra and published his landmark paper in 1962, “Controlled burning in eucalypt forests”. Leaflet No. 80, as it was known, proved a turning point for forest and fire managers across Australia. It led to the McArthur Forest Fire Danger Meter (FFDM) which first appeared in operational use in 1967 as the Mk 4. The CSIRO had developed its semi-automatic aerial incendiary machine dropping small capsules, with the first trial from a fixed-wing Cessna 337 at Manjimup in December 1965. Many technological and safety improvements followed including the Raindance machineAerial Incendiary Machine developed in Western Australia Rather than "ping pong balls" it uses a belt of incendiary "caplets" which are injected inside the machine before being ejected Raindance Systems R2forests commission victoria (fcv), planned burning, bushfire aviation, bushfire

Used for planned burning operationsIncendiary Launcher in boxOtwaysforests commission victoria (fcv), planned burning, bushfire, hand tools

Used for planned burning operationsBurner wand. Adaption of a commercial garden weed burner forests commission victoria (fcv), planned burning, bushfire, hand tools