Abstract: An aircraft or road vehicle transportable operating assembly comprises a central body, to which there are telescopically coupled side bodies which can be withdrawn into the central body, during a transportation step, and extended from the central body during the use step, the side bodies including a trampling floor which can be arranged with a coplanar relationship with respect to a trampling floor of the central body.

Abstract: The truck comprises a rigid basic frame mounted on wheel pairs, at least one of which is a driving pair, to the basic frame longitudinal stringers there being slidably connected, through a cylindrical articulation, respective ends of two bar pairs crossing each other and mutually articulated, the opposite ends of the bar pairs being coupled to two additional longitudinal stringers interconnected by crossbeams.

Abstract: 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.