| 摘要 |
The tractor comprises a platform mounted on three wheels, one of which is a drive and steering wheel, and having pivotally mounted thereon a saddle member having shaped uprights which form a supporting structure for a hydraulic jack of the double-acting type the piston rod whereof has a yoke attached thereto, the two legs of the yoke being adapted to securely engage with the front wheel of a helicopter to be towed so as to drag the wheel along the saddle member.
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