1998 - Volume #22, Issue #4, Page #19
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'Big Roy's' A Big Boy
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The power limit for production tractors in those days was 350 hp, but Robinson instructed Versatile engineers to build a 600-hp giant. The articulated, 8-WD, 28-ton tractor is powered by a Cummins KTA 1150-600 diesel in its rear section. The rear-mounted engine created rear visibility problems, so a closed-circuit TV camera was mounted on the back of the tractor and linked to a 9-in. screen mounted above the instrument panel in the cab.
In field tests, Big Roy easily handled a 118 ft. wide cultivator at up to 6 1/2 mph and a 20-bottom plow to 12 in. deep, no problem.
However, there were a couple of design issues, including the steering system and the pivot point for the articulated steering located behind the cab.
Worse was the fact that the tractor simply had too much power for the implements available in the late 1970s.
Eventually, Versatile switched to developing a smaller, 470-hp version of the tractor.
Big Roy is now on display at the Manitoba Agricultural Museum in Austin, Manitoba.
Contact: FARM SHOW Followup, Manitoba Agricultural Museum Inc., P.O. Box 10, Austin, Manitoba, Canada R0H 0C0 (ph 204-637-2211).

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