Various embodiments of the present disclosure provide a rotorcraft-assisted system and method for launching and retrieving a fixed-wing aircraft into and from free flight. The launch and retrieval system includes a modular multicopter, a storage and launch system, an anchor system, a flexible capture member, and an aircraft-landing structure. The multicopter is attachable to the fixed-wing aircraft to facilitate launching the fixed-wing aircraft into free, wing-borne flight. The storage and launch system is usable to store the multicopter (when disassembled) and to act as a launch mount for the fixed-wing aircraft by retaining the fixed-wing aircraft in a desired launch orientation. The anchor system is usable with the multicopter, the flexible capture member, and the aircraft-landing structure to retrieve the fixed-wing aircraft from free, wing-borne flight.

A pipe puller system and methods of pipe extraction are shown. In one example a pipe to be replaced is pulled by attaching a pulling force to multiple locations along a length of the pipe. In one example pulling forces can be varied between different attachment locations to better control or eliminate tearing of the pipe. In one example, a pipe loosening device may be used prior to pulling the pipe from the ground.

Techniques for implementing and/or operating a system that includes a pipe drum, which has a drum shaft and a drum body that enables a pipe segment to be spooled on the pipe drum, and pipe deployment equipment. The pipe deployment equipment includes a brake disc, which has a shaft socket that is keyed to matingly interlock with the drum shaft to facilitate tying rotation of the pipe drum with rotation of the brake disc, and a spooling assembly that includes a motor shaft, in which the spooling assembly ties rotation of the motor shaft with the rotation of the brake disc to enable the pipe deployment equipment to actively rotate the brake disc in a first direction to facilitate spooling the pipe segment off of the pipe drum, to actively rotate the brake disc in a second direction to facilitate spooling the pipe segment onto the pipe drum, or both.

A pipe puller system and methods of pipe extraction are shown. In one example a pipe to be replaced is pulled by attaching a pulling force to multiple locations along a length of the pipe. In one example pulling forces can be varied between different attachment locations to better control or eliminate tearing of the pipe. In one example, a pipe loosening device may be used prior to pulling the pipe from the ground.

Techniques for implementing and/or operating a system that includes a pipe drum, which has a drum shaft and a drum body that enables a pipe segment to be spooled on the pipe drum, and pipe deployment equipment. The pipe deployment equipment includes a brake disc, which has a shaft socket that is keyed to matingly interlock with the drum shaft to facilitate tying rotation of the pipe drum with rotation of the brake disc, and a spooling assembly that includes a motor shaft, in which the spooling assembly ties rotation of the motor shaft with the rotation of the brake disc to enable the pipe deployment equipment to actively rotate the brake disc in a first direction to facilitate spooling the pipe segment off of the pipe drum, to actively rotate the brake disc in a second direction to facilitate spooling the pipe segment onto the pipe drum, or both.

A pipe puller system and methods of pipe extraction are shown. In one example a pipe to be replaced is pulled by attaching a pulling force to multiple locations along a length of the pipe. In one example pulling forces can be varied between different attachment locations to better control or eliminate tearing of the pipe. In one example, a pipe loosening device may be used prior to pulling the pipe from the ground.

A manufacturing system is disclosed including a conveying apparatus with a plurality of rollers that form a travel path along which a ribbon is configured to be conveyed in a travel direction. The plurality of rollers including at least a tensioning roller having a shaft and a rotation wheel with a plurality of spokes that extend radially outward from the shaft, the plurality of spokes being configured to rotate about a longitudinal axis of the shaft to cause the ribbon to be conveyed in the travel direction. The manufacturing system further including a flow generator configured to direct a flow of fluid to the plurality of spokes to cause rotation of the plurality of spokes.

Various embodiments of the present disclosure provide a rotorcraft-assisted system and method for launching and retrieving a fixed-wing aircraft into and from free flight. The launch and retrieval system includes a modular multicopter, a storage and launch system, an anchor system, a flexible capture member, and an aircraft-landing structure. The multicopter is attachable to the fixed-wing aircraft to facilitate launching the fixed-wing aircraft into free, wing-borne flight. The storage and launch system is usable to store the multicopter (when disassembled) and to act as a launch mount for the fixed-wing aircraft by retaining the fixed-wing aircraft in a desired launch orientation. The anchor system is usable with the multicopter, the flexible capture member, and the aircraft-landing structure to retrieve the fixed-wing aircraft from free, wing-borne flight.

A pipe puller system and methods of pipe extraction are shown. In one example a pipe to be replaced is pulled by attaching a pulling force to multiple locations along a length of the pipe. In one example pulling forces can be varied between different attachment locations to better control or eliminate tearing of the pipe. In one example, a pipe loosening device may be used prior to pulling the pipe from the ground.

A pipe puller system and methods of pipe extraction are shown. In one example a pipe to be replaced is pulled by attaching a pulling force to multiple locations along a length of the pipe. In one example pulling forces can be varied between different attachment locations to better control or eliminate tearing of the pipe. In one example, a pipe loosening device may be used prior to pulling the pipe from the ground.