Abstract: An aircraft comprising a hydrogen-containing envelope, a water-collection system for collecting water from the envelope, an electrolyser to convert the water collected using the water-collection system into hydrogen, and a hydrogen-replenishment system for replenishing the envelope with hydrogen generated using the electrolyser. In one embodiment, generated hydrogen is also supplied to a hydrogen-fueled propulsion system for propulsion of the aircraft.

Abstract: An aircraft comprising a hydrogen-containing envelope, a water-collection system for collecting water from the envelope, an electrolyser to convert the water collected using the water-collection system into hydrogen, and a hydrogen-replenishment system for replenishing the envelope with hydrogen generated using the electrolyser. In one embodiment, generated hydrogen is also supplied to a hydrogen-fueled propulsion system for propulsion of the aircraft.

Abstract: An aircraft comprising a hydrogen-containing envelope, a water-collection system for collecting water from the envelope, an electrolyzer to convert the water collected using the water-collection system into hydrogen, and a hydrogen-replenishment system for replenishing the envelope with hydrogen generated using the electrolyzer. In one embodiment, generated hydrogen is also supplied to a hydrogen-fuelled propulsion system for propulsion of the aircraft.

Abstract: An aircraft comprising a hydrogen-containing envelope, a water-collection system for collecting water from the envelope, an electrolyser to convert the water collected using the water-collection system into hydrogen, and a hydrogen-replenishment system for replenishing the envelope with hydrogen generated using the electrolyser. In one embodiment, generated hydrogen is also supplied to a hydrogen-fuelled propulsion system for propulsion of the aircraft.

Abstract: An airship or airborne station comprises a gas-containing envelope for containing a lifting gas, solar panels on the envelope for providing electric power to an energy storage system, and an external display screen powered by the energy storage system. This airship or airborne station enables novel methods of using the airship or airborne station to display digital content, to sell or auction ad space on the display screen to the highest bidder, to display information for events, crowds, rescue operations, or to interact digitally with a group of wireless communications devices. Furthermore, the airship or airborne station acts as a communication and media hub for uploading user-generated content, relaying communications from wireless devices, broadcasting content or interactive media.