Thanks for that info. The Bristol Freighter, unlike the Douglas DC-3, was a purpose-built heavy freight aircraft with rectangular shaped fuselage with an obstruction-free interior with parallel sides and upper and lower decks, with clam shell doors at the forward end to facilitate ease of loading large items of cargo so I can see that it was an ideal aircraft for the air transport of cattle. The first civilian Bristol Freighter in Australia was a Mark 1A "Demonstrator", demonstrated to QANTAS in New Guinea in 1947 and written off when the aircraft rolled backward down the 10% sloping Wau airstrip. A second aircraft, a Mark 21 "Demonstrator" was leased to and later purchased by Australian National Airways (ANA) in 1948, registered VH-INV and in 1949 became the first aircraft to land suffering mechanical problems, at the still under construction Moorabbin airport. This aircraft plus two others operated domestic services mainly between Melbourne and the Tasmanian Islands, and were also involved in the development of the Air Beef Scheme in the Kimberly district of Western Australia. Bristol Freighters played a major role in the development of air freight in Australia generally, and in addition to ANA were operated by Trans Australia Airlines (TAA), International Parcel Express Company (IPEC) and Air Express. I recall flying in the one operated by IPEC with its then chairman, Gordon Barton, in Tasmania where Federal Hotels, which Gordon also owned, had the Wrest Point Casino in Hobart and the Country Club Casino in Launceston as well as the Windsor Hotel in Melbourne and the Broadbeach Hotel on the Gold Coast. Under a twelve month charter contract to IPEC commencing in June 1966 this aircraft VH-ADL operated south bound flights with goods from Melbourne. From March 1967, VH-ADL went on to operate charter contracts for freight forwarders in Queensland, some itinerant operations between Brisbane and New Guinea carrying motor vehicles and sometimes cattle, Queensland flood relief as and when required, and general charter freight operations until May 1975, when the company moved its operations to Melbourne. Services to the Tasmanian Islands were commenced, and continued until VH-ADL conducted the last Bristol Freighter flight in Australia from King Island to Essendon on August 17 1979. After many changes of ownership and activities it finished up at Air World, Wangaratta Victoria.
Sorry to be so long winded but I just wanted to set this down because it is relevant to your post and I do love aviation history, particularly if it involves PNG. John W.
P.S. A late mate of mine, a distinguished mining engineer and mining consultant from Sydney, was involved in the construction of a gold recovery plant on the Wau-Bulolo goldfield in New Guinea in about 1936. The sections of this gravity plant were flown into Wau airfield in a Stinson SR-7B Reliant aircraft and assembled there by my old mate, CWM.