A method of operating a supply aircraft for in-flight recharging comprises: transmitting a deploy command signal from a communication unit of the supply aircraft to a communication unit of a receiver aircraft, to cause a line and drogue to deploy from the receiver aircraft; controlling at least one of the supply aircraft and the drogue to engage the drogue with a first end of an electrical cable of the supply aircraft, a second end of the electrical cable being connected to the supply aircraft; and transmitting a return command signal from the communication unit of the supply aircraft to the communication unit of the receiver aircraft, to cause the line and drogue to return to the receiver aircraft with the first end of the electrical cable. The supply aircraft is located behind the receiver aircraft and the deploy command signal is for causing the line and drogue to deploy rearwardly of the receiver aircraft.

A method of operating a supply aircraft for in-flight recharging comprises: transmitting a deploy command signal from a communication unit of the supply aircraft to a communication unit of a receiver aircraft, to cause a line and drogue to deploy from the receiver aircraft; controlling at least one of the supply aircraft and the drogue to engage the drogue with a first end of an electrical cable of the supply aircraft, a second end of the electrical cable being connected to the supply aircraft; and transmitting a return command signal from the communication unit of the supply aircraft to the communication unit of the receiver aircraft, to cause the line and drogue to return to the receiver aircraft with the first end of the electrical cable. The supply aircraft is located behind the receiver aircraft and the deploy command signal is for causing the line and drogue to deploy rearwardly of the receiver aircraft.

A system and a method include an imaging device configured to capture one or more images of a first vehicle. A control unit is in communication with the imaging device. A model database is in communication with the control unit. The model database stores a three-dimensional (3D) model of the first vehicle. The control unit is configured to receive image data regarding the one or more images of the first vehicle from the imaging device and analyze the image data with respect to the 3D model of the first vehicle to determine a pose of the first vehicle.

A complete or global monitoring and illumination system installed externally on a single point on the aircraft, on a platform that would be called the base platform, which includes all the light outlets and all the cameras required for monitoring refuelling operations from a single point on the fuselage. The system is placed in the lower part, under the axis of the fuselage and simultaneously reduces the time required for installation and makes installation less expensive. Thus, assembly or dismantling of the system involves this single structure that includes all that is required for providing the aircraft with a complete viewing system for monitoring in-flight operations.

A variety of refueling devices, systems and methods are disclosed for use in in-flight refueling. In one example one such device is towed by a tanker aircraft via a fuel hose at least during in-flight refueling, and has a boom member with a boom axis. The boom member enables fuel to be transferred from the fuel hose to a receiver aircraft along the boom axis during in-flight refueling. The device maintains a desired non-zero angular disposition between the boom axis and a forward direction at least when the refueling device is towed by the tanker aircraft in the forward direction via the fuel hose.

A variety of refueling devices, systems and methods are disclosed for use in in-flight refueling. In one example one such device is towed by a tanker aircraft via a fuel hose at least during in-flight refueling, and has a boom member with a boom axis. The boom member enables fuel to be transferred from the fuel hose to a receiver aircraft along the boom axis during in-flight refueling. The device maintains a desired non-zero angular disposition between the boom axis and a forward direction at least when the refueling device is towed by the tanker aircraft in the forward direction via the fuel hose.

A container may be supplied with an incompressible fluid. For example, the container may be partially or completely prefilled with the incompressible fluid. The container may be supplied with a flow of compressible gas via a first valve. The first valve may regulate the flow of the compressible gas supplied to the container based on a pressure setting of the first valve. A second valve may release the incompressible fluid from the container as the container is filled with the compressible gas and in response to a pressure of the container being greater than a pressure setting of the second valve. The pressure setting of the first valve may be greater than the pressure setting of the second valve.

A method of operating an aircraft includes, prior to an in-flight refueling operation, operating the aircraft using fuel from a first fuel tank connected to a fuel delivery system. Subsequently, the in-flight refueling operation is performed over a refueling area while operating the aircraft from another fuel tank, including (1) disconnecting the first fuel tank from the fuel delivery system, (2) jettisoning the first fuel tank, and (3) taking on a replacement fuel tank by (a) capturing the replacement fuel tank from the refueling area and (b) bringing the captured replacement fuel tank onboard the aircraft. The replacement fuel tank is then connected to the fuel delivery system and the aircraft is operated using fuel from the replacement fuel tank.

A method for controlling in-flight refueling of a receiver aircraft having a fuel receptacle, comprising: automatically steering a refueling device to an engagement enabling position, including: repeatedly determining a spatial disposition of the refueling device with respect to the receiver aircraft, the refueling device being capable of engaging and refueling the receiver aircraft via a boom member, when the device arrives to the engagement enabling position at which the boom member is in a predetermined spaced and spatial relationship with respect to the fuel receptacle of the receiver aircraft; repeatedly calculating steering commands based at least on the repeatedly determined spatial dispositions and characteristics of a spatial control system of the refueling device; sending the steering commands to the spatial control system; whereby at the engagement enabling position, the boom member of the refueling device is capable of engaging with the fuel receptacle to enable refueling of the receiver aircraft.

A method for controlling in-flight refueling of a receiver aircraft having a fuel receptacle, comprising: automatically steering a refueling device to an engagement enabling position, including: repeatedly determining a spatial disposition of the refueling device with respect to the receiver aircraft, the refueling device being capable of engaging and refueling the receiver aircraft via a boom member, when the device arrives to the engagement enabling position at which the boom member is in a predetermined spaced and spatial relationship with respect to the fuel receptacle of the receiver aircraft; repeatedly calculating steering commands based at least on the repeatedly determined spatial dispositions and characteristics of a spatial control system of the refueling device; sending the steering commands to the spatial control system; whereby at the engagement enabling position, the boom member of the refueling device is capable of engaging with the fuel receptacle to enable refueling of the receiver aircraft.