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The Curtiss-Wright CW-27 & CW-28
A Wooldridge factory image of a T-70 Cobrette that shows the ‘Roto-Gear’ steering motors clearly at the top of the machine’s articulation hitch. These were quite advanced for the day – a little too advanced, as they gave a lot of trouble in service. The front push-plate for push-loading other scrapers is also well-shown and a concept some 20 years ahead of the idea being adopted by other manufacturers.