Victoria University Antarctic Research Expedition Science and Logistics Reports 1973-74: VUWAE 18
The Shapeless party took 2 Johnson toboggans out into the field, as they did last year, to be used largely for day trips. Although these toboggans had been proved adequate for this purpose last year, and all the necessary spares were available in the field, continuing trouble with the fuel system was experienced. Traction was considerably improved by the addition of ice-cleats to the track. Details of the performance of these toboggans can be found in the report to Antarctic Division by Blackwood.
Air support was provided by twin-turbine UHI-N helicopters. This included transport to and from the field for all the field groups and an emergency evacuation, and enabled Keys and McPherson to carry out an efficient trip to five separated localities in minimum time.