A walk-behind tractor has an increased ground clearance to define a plant receiving space that has a greater height than a conventional walk-behind tractor having a straight axle. The walk-behind tractor has trailing drop arms from a frame that carry wheel axles that result in an elevated height of a driveshaft. The elevated driveshaft increases the ground clearance for taller plants to pass therebeneath during operation of the walk-behind tractor which would otherwise be too tall to pass below a conventional straight axle walk-behind tractor.

Various embodiments of the disclosure include a power generation unit trailer system. A first aspect of the disclosure provides for a landing gear for a power generation unit trailer system. The landing includes: a support configured for attaching to a base of the power generation unit trailer; and a vibration isolator attached to the support and configured to anchor the support to a foundation beneath the base.

Various embodiments of the disclosure include a power generation unit trailer system. A first aspect of the disclosure provides for a landing gear for a power generation unit trailer system. The landing includes: a support configured for attaching to a base of the power generation unit trailer; and a vibration isolator attached to the support and configured to anchor the support to a foundation beneath the base.

The technology relates to autonomous vehicles having hitched or towed trailers for transporting cargo and other items between locations. Aspects of the technology provide a smart hitch connection between the fifth-wheel of a tractor unit and the kingpin of a trailer. This avoids requiring a person to make physical pneumatic and electrical connections between the fifth-wheel and kingpin using external hoses and cables. Instead, the necessary connections are made internally, autonomously. For instance, the fifth-wheel may provide air pressure via one or more slots arranged on a connection surface, and the trailer is configured to receive the air pressure through one or more openings on a contact surface of the kingpin. An electrical connection section of the fifth-wheel may also provide electrical signals and/or power to an electrical contact interface of the kingpin. Rotational information about relative alignment of the trailer to the tractor unit may also be provided.

The technology relates to autonomous vehicles having hitched or towed trailers for transporting cargo and other items between locations. Aspects of the technology provide a smart hitch connection between the fifth-wheel of a tractor unit and the kingpin of a trailer. This avoids requiring a person to make physical pneumatic and electrical connections between the fifth-wheel and kingpin using external hoses and cables. Instead, the necessary connections are made internally, autonomously. For instance, the fifth-wheel may provide air pressure via one or more slots arranged on a connection surface, and the trailer is configured to receive the air pressure through one or more openings on a contact surface of the kingpin. An electrical connection section of the fifth-wheel may also provide electrical signals and/or power to an electrical contact interface of the kingpin. Rotational information about relative alignment of the trailer to the tractor unit may also be provided.

Provided is a rear movement device for a truck with lowerable bed, comprising: a front axle, a driver's cab, a rear axle, a cargo container, a sub-frame, a first lifting device, a second lifting device, a first guiding device, a first sub-frame driving element and a second sub-frame driving element.

Provided is a rear movement device for a truck with lowerable bed, comprising: a front axle, a driver's cab, a rear axle, a cargo container, a sub-frame, a first lifting device, a second lifting device, a first guiding device, a first sub-frame driving element and a second sub-frame driving element.

Training apparatus comprises exercise equipment mounted to a side surface or a roof of a land vehicle or for mounting to a surface such as a wall of a building or ship. The exercise equipment comprises a support structure which is attached to the surface or roof. In some embodiments the support structure is maneuverable by pivoting with respect to the surface or roof, whilst remaining attached thereto, between a stowed condition and an exercising condition.

Training apparatus comprises exercise equipment mounted to a side surface or a roof of a land vehicle or for mounting to a surface such as a wall of a building or ship. The exercise equipment comprises a support structure which is attached to the surface or roof. In some embodiments the support structure is maneuverable by pivoting with respect to the surface or roof, whilst remaining attached thereto, between a stowed condition and an exercising condition.

A fire apparatus includes a chassis, a front axle coupled to the chassis, a rear axle coupled to the chassis, a ladder assembly coupled to the chassis, and a stability system. The stability system includes at least one of (i) a front downrigger coupled to the chassis, (ii) a rear downrigger coupled the chassis, or an outrigger coupled to the chassis. The stability system is controllable to facilitate leaning the fire apparatus at least two degrees relative to a ground surface while maintaining full operational capability of the ladder assembly.