The 310s that Maslings of Cootamundra had cloud-seeding included -
VH-AER, VH-REK, VH-WRG, VH-TTM, VH-GBC (subsequently privately owned, broke up in a Cb, Broken Hill to Mildura), VH-RLY (destroyed in Coota hangar fire) and C320 VH-FJW, ( crashed fatally Warwick Farm, NSW. Originally owned by Fletcher Jones, Warnambool, hence FJW.)
The bases for these ops (all designated drought relief) were Wagga, Cobar, Dubbo and Horsham. For a brief period in 1968 AER was contracted to the Department of the Interior in Canberra for seeding over the Cotter catchment due to the severity of the drought affecting Canberra's water supply. The officer from the CSIRO who ran this job was Arthur Tapp, a Second World War nav in Bomber Command and the nav for the trans-Pacific ferry of REK and REL. (Arto was also as funny as a hat full of bums.)
The Beagle 206 VH-UNL was certainly contracted by Western Air Navigation, Eagle Farm, to the Queensland Government in 1969-70 for drought relief. Dubbed by some 'Winston Spencer Beagle', she was a bit of a dog when loaded to the hilt but on the other hand, on the controls, beautifully harmonised. A superb pilot's aeroplane, with outstanding outlook from behind the huge clear canopy/windscreen. Configured as an eight place, the rear two 'hunchback midget' seats featured a fairly low roof line.