Aaronw , the white Huey is certainly different .
For many years I mistakenly thought that the "ARDU" means [army reserve defence unit] , however I've since now found out that it stands for Aircraft Research and Development Unit.
So I think that the white Huey's were used overseas as part of Australia's UN commitment .
Along with the AA-08 ARDU S-70B-9 , UH-1D/H & Kiowa decals ; I also bought the AA-06 AAAC UN S-70B-9 , UH-1D/H & Kiowa decal set .
I'm not 100% sure if the overall white scheme on the first decal set was part of a fleet of Huey's used by the RAAF "MFO" [Multi National Force & Observers] to the Sinai Desert 1982-1986 as on the pic I posted above .
I also liked the overall white scheme on the Army Blackhawk , which was part of a small force of UN peace keepers during the 1983 Cambodian Regional Elections .
I have two Italeri 1/72 Blackhawk kits I'm currently rebuilding , one will have RAAF markings from 1986 with a camoufalge scheme , the other will be an Army bird with a similar paint scheme with markings from the East Timor commitment .The new Hasegawa UH-60 kit will have the overall white scheme along with another white Huey from the 1982-86 Sinai Desert role .
I'll need to get another set of those ASE [aircrft survivability equipment sets] from Fireball Modelworks for the engine heat shields and exhaust .
I also bought some decal scissors , hopfully they will cut a cleaner edge than the ones I used on my first Aussie Huey build .
So lot's of Huey's to build , 16 Huey kits on-going at the moment along with some Blackhawks and H-34's Seahorse's ...... I better get busy building
John .