Luigi Pellarini originally designed what was the Waitomo Airtruck in New Zealand during the 1950s, with the aircraft to employ components of wartime Texan/Harvard aircraft. Its unique tall, stubby fuselage and separated twin tail booms allowed accommodation for passengers and an agricultural hopper, with reduced rear-fuselage contamination by the hopper chemicals, and easy loading.
This was a chalk and cheese different to the current Lycoming powered airtruck.
There were 2 of them built both crashed I think with fatals in both cases.
I worked beside one in a Fletcher near Te Kuiti in the 1960s it was being flown by "Goose" Ercerg, anyone know if Goose is still around?
I can remember Goose saying it was only his vast dung dusting experience that kept him out of the ground in that aircraft
Try this link ..boy that takes me back..
http://www.airliners.net/open.file/277578/L/