A fluid coupling includes an inlet housing member, an outlet housing member rotatably connected with the inlet housing member to define a chamber, a regulator assembly disposed in the chamber and connected to the outlet housing member, a main poppet configured to control fluid flow between the inlet housing member and the outlet housing member, and/or a pilot poppet configured to selectively permit fluid flow through the main poppet. The outlet housing member may be configured to mate with and at least partially receive a nozzle. The regulator assembly may include a regulator housing and a regulator.

A fluid coupling includes an inlet housing member, an outlet housing member rotatably connected with the inlet housing member to define a chamber, a regulator assembly disposed in the chamber and connected to the outlet housing member, a main poppet configured to control fluid flow between the inlet housing member and the outlet housing member, and/or a pilot poppet configured to selectively permit fluid flow through the main poppet. The outlet housing member may be configured to mate with and at least partially receive a nozzle. The regulator assembly may include a regulator housing and a regulator.

An example indication system for use with a refueling system including a hose for supplying fuel from a tanker aircraft to a receiver aircraft and a refueling coupler coupled to an end of the hose is described. The indication system includes a first transceiver located at the refueling coupler and configured to receive refueling information from a second transceiver located at the tanker aircraft, a plurality of light sources located at the refueling coupler, and a processor in communication with the first transceiver to receive the refueling information, and in communication with the plurality of light sources to operate the plurality of light sources based on the refueling information.

An example indication system for use with a refueling system including a hose for supplying fuel from a tanker aircraft to a receiver aircraft and a refueling coupler coupled to an end of the hose is described. The indication system includes a first transceiver located at the refueling coupler and configured to receive refueling information from a second transceiver located at the tanker aircraft, a plurality of light sources located at the refueling coupler, and a processor in communication with the first transceiver to receive the refueling information, and in communication with the plurality of light sources to operate the plurality of light sources based on the refueling information.

An en route fluid transmitting apparatus for transmitting a fluid from a transmitting entity to a probe of a receiving vehicle includes a funnel, a hose and a thrust producing device. Thrust producing device includes a main body that is rigidly attached to the funnel, and at least two rotors that are connected to the main body for producing thrust. The thrust producing device is adapted to move the funnel freely in any direction to a predetermined position relative to the probe where the funnel engages with the probe.

An en route fluid transmitting apparatus for transmitting a fluid from a transmitting entity to a probe of a receiving vehicle includes a funnel, a hose and a thrust producing device. Thrust producing device includes a main body that is rigidly attached to the funnel, and at least two rotors that are connected to the main body for producing thrust. The thrust producing device is adapted to move the funnel freely in any direction to a predetermined position relative to the probe where the funnel engages with the probe.

A refueling hose tool kit for repairing or replacing air refueling hose end fittings may include a collapsible work stand configured to secure the hose end fitting when in a deployed extended orientation; a removal adapter ring; a hydraulically powered assembly clamp fixture; a hydraulically powered insert removal tool fixture; a wrench; a hydraulic pump; and a ruggedized case configured to receive the work stand, removal adapter ring, clamp fixture, insert removal tool fixture, wrench and hydraulic pump for storage and transport.

Systems, apparatus, and methods may control movement of an object through a fluid. The systems, apparatus, and methods may utilize a rotatable control unit including a pair of fins to generate a control force at least partially perpendicular to a direction of travel of the object through the fluid. One fin may be configured to generate a different amount of rolling moment than the other fin to provide rotational acceleration and energy production.

Systems, apparatus, and methods may control movement of an object through a fluid. The systems, apparatus, and methods may utilize a rotatable control unit including a pair of fins to generate a control force at least partially perpendicular to a direction of travel of the object through the fluid. One fin may be configured to generate a different amount of rolling moment than the other fin to provide rotational acceleration and energy production.

An apparatus and method for refueling an aircraft comprising a hose guide. The hose guide includes a framework having wings and remotely-adjustable control surfaces interacting with air through which the hose guide moves. An attachment interface, attaching the hose guide to a fuel hose extended from a tanker aircraft, at a distal end away from the tanker aircraft, and a control system adjusting the adjustable control surfaces. Wherein the hose guide is towed as a glider by the tanker aircraft, and adjustment of the control surfaces adjusts three-dimensional position of the end of the fuel hose at the hose guide relative to position of the tanker aircraft.