초록 ▼

A ground handling system for lifting, supporting, maneuvering, and transporting aircraft fitted with skid-type landing gear comprising a dolly assembly of tandem wheel assemblies, a yoke assembly, and a detachable jack assembly. The jack assembly utilizes a modified, standard, hand-operated hydrauli

A ground handling system for lifting, supporting, maneuvering, and transporting aircraft fitted with skid-type landing gear comprising a dolly assembly of tandem wheel assemblies, a yoke assembly, and a detachable jack assembly. The jack assembly utilizes a modified, standard, hand-operated hydraulic jack mounted on a platform straddling the skid tube to provide over-center lifting force to existing fixed wheel attachment strong points on the skid tubes. An adjustable inverted U-shaped lift member translates the vertical thrust of the piston of the jack below the platform to the skid tube. An adaptor pivotally mounted to the lift member grasps and accommodates unevenly-mounted attachment points. Two jack assemblies are utilized to lift the aircraft generally simultaneously at opposing attachment points which are generally at the plane of the center of gravity of the aircraft. While the aircraft is raised and balanced on the jack assemblies, the two wheel assemblies are placed in tandem under the skid tubes, the rear wheel assembly to the rear of the attachment points and the front wheel assembly under the front portion of the skid tubes. The tandem wheel assemblies provide a wide wheel base for stability and maneuvering. The front wheel assembly has at least two opposing, steerable caster wheels for maneuver which may be locked to facilitate backing up, and the rear wheel assembly has at least two opposing co-axial, fixed wheels with a camber and toe-in configuration to facilitate tracking. The wheel pintles of the rear wheels are elevated above the axle by a connecting flange to provide additional clearance.

대표청구항 ▼

A ground handling system for a helicopter equipped with two opposed, landing skids, comprising: a front support means for retaining the front portion of the two skids of the helicopter and for supporting the weight of the helicopter on the front portion of the two skids, said front support means con

A ground handling system for a helicopter equipped with two opposed, landing skids, comprising: a front support means for retaining the front portion of the two skids of the helicopter and for supporting the weight of the helicopter on the front portion of the two skids, said front support means connectable to a propulsion means for towing said front support means; and a means connected to said front support means for maneuvering said front support means, said means includes a front wheel assembly means connected to said front support means for turning and maneuvering said front support mans, and for supporting said front support means out of ground contact to provide clearance between the helicopter and said front support means, said front support means includes an elongated framework assembly connected to said wheel assembly means, said framework assembly having a first skid retaining means connected thereto for cradling the front portion of the skids and accomodating varying width between skid tubes, and said front wheel assembly means connected to said framework assembly includes a suspended wheel means in contact with the ground, said first skid retainer means includes a tray means for supporting the underside of the skids and a skid latch cover means for containing the skids, a rear wheel assembly means connected to the rear portion of the skids for supporting the weight of the helicopter on the rear portion of the skids and for transporting the helicopter, said wheel means includes at least one wheel connected to said front wheel assembly adjacent to each end of said framework assembly, said whel having a locking means for securing said wheel in a fixed position for control during rearward movement of said front support means, said rear wheel assembly means includes at least two wheels and an axle assembly, said axle assembly includes a skid retaining means connected to said axle for cradling the rear portion of the skids and accomodating varying width between skid tubes, said skid retaining means includes a tray means for supporting the underside of the skids and a skid latch cover means for containing the skids.