Systems, devices, and methods for impacting, by a small unmanned aerial vehicle (SUAV), a net having at least three sides; and converting the kinetic energy of the SUAV into at least one of: elastic potential energy of one or more tensioned elastic cords connected to at least one corner of the net, gravitational potential energy of a frame member connected to at least one corner of the net, rotational kinetic energy of the frame member connected to at least one corner of the net, and elastic potential energy of the frame member connected to at least one corner of the net.

Various implementations disclosed herein include devices, systems, and methods that enable an autonomous vehicle to deliver items to moving vessels via an aerial payload catch arm structure removably attached to universal structures of a marine vessel. For example, a structure may include a first elongated structure pivotably attached to a second elongated structure. The second elongated structure includes an attachment structure configured to removably attach the second elongated structure to a structure on a vessel. The structure may further include a third elongated structure pivotably attached to the first elongated structure and a platform structure comprising a porous platform. The platform structure is attached to the third elongated structure such that the platform structure in combination with the third elongated member and the first elongated member is configured to rotate around the second elongated member to move the platform structure between positions for an autonomous vehicle delivery.

Various implementations disclosed herein include devices, systems, and methods that enable an autonomous vehicle to deliver items to moving vessels via an aerial payload catch arm structure removably attached to universal structures of a marine vessel. For example, a structure may include a first elongated structure pivotably attached to a second elongated structure. The second elongated structure includes an attachment structure configured to removably attach the second elongated structure to a structure on a vessel. The structure may further include a third elongated structure pivotably attached to the first elongated structure and a platform structure comprising a porous platform. The platform structure is attached to the third elongated structure such that the platform structure in combination with the third elongated member and the first elongated member is configured to rotate around the second elongated member to move the platform structure between positions for an autonomous vehicle delivery.