A landing pad including at least one integrally formed elongated hollow decking unit having an elongated landing plate with a plurality of holes, an elongated base plate aligned longitudinally with respect to the elongated landing plate which is designed as an orifice plate and spaced a distance apart from the elongated landing plate, and two elongated side wall plates connecting the elongated landing plate to the elongated base plate. The plurality of holes may be configured to drain unburned fuel spilled on the elongated landing plate through the plurality of holes into the elongated hollow decking unit and to suppress flame of burning fuel from propagating through the plurality of holes into the elongated hollow decking unit by reducing the temperature of drained unburned fuel. The distance apart between the elongated landing plate and the elongated base plate may be configured to prevent re-ignition of the drained unburned fuel on the elongated base plate inside the elongated hollow decking unit.

A landing pad including at least one integrally formed elongated hollow decking unit having an elongated landing plate with a plurality of holes, an elongated base plate aligned longitudinally with respect to the elongated landing plate which is designed as an orifice plate and spaced a distance apart from the elongated landing plate, and two elongated side wall plates connecting the elongated landing plate to the elongated base plate. The plurality of holes may be configured to drain unburned fuel spilled on the elongated landing plate through the plurality of holes into the elongated hollow decking unit and to suppress flame of burning fuel from propagating through the plurality of holes into the elongated hollow decking unit by reducing the temperature of drained unburned fuel. The distance apart between the elongated landing plate and the elongated base plate may be configured to prevent re-ignition of the drained unburned fuel on the elongated base plate inside the elongated hollow decking unit.

An airborne wind turbine system is provided including an aerial vehicle having a fuselage, an electrically conductive tether having a first end secured to the aerial vehicle and a second end secured to a rotatable drum positioned on a tower onto which the tether is wrapped when the aerial vehicle is reeled in, a perch extending from the tower, one or more perch booms attached to the perch panel and pivotably mounted to the tower, wherein when the aerial vehicle is secured to the perch, the aerial vehicle is positionable in a lowered parked position, and wherein the aerial vehicle is movable to a raised parked position caused by rotation of the one or more perch booms with respect to the tower.

A helicopter take-off and landing pad (helipad) includes a drain conduit embedded within a surface, a bed of crushed aggregate within a portion of the surface graded to be inclined toward the drain conduit, and a plurality of pavers supported by the aggregate bed and defining a substantially level top surface to serve as a landing surface for a helicopter. The plurality of pavers are permeable to liquid on the top surface to communicate the liquid to the aggregate bed. A pump connected to the drain conduit is operable to discharge liquid directed from the aggregate bed through the drain conduit to a water separator that is operable to separate water from other liquid components of the discharged liquid. At least one collection tank is fluidly connected to the water separator to receive the other liquid components discharged by the water separator.

The invention generally relates to two-bladed turbine nacelles and platforms integrated into the nacelle structure. In certain embodiments, the invention provides an assembly encompassing a nacelle that houses a two-bladed turbine and a hoisting platform. The hoisting platform is integrated into the structure of the nacelle so as to form the roof of the nacelle.

The invention generally relates to two-bladed turbine nacelles and platforms integrated into the nacelle structure. In certain embodiments, the invention provides an assembly encompassing a nacelle that houses a two-bladed turbine and a hoisting platform. The hoisting platform is integrated into the structure of the nacelle so as to form the roof of the nacelle.

Helipad and helipad illumination system The invention relates to a dynamic helipad illumination system (2) for dynamically illuminating a floor surface or supporting deck of helipad (1) at least partly in order to enable communication of information regarding one or more current local conditions of, at and/or near the helipad. The dynamic helipad illumination system comprises one or multiple illumination elements (3). The system is arranged to bring at least a part (2a) of said one or multiple illumination elements from a first illumination state, in which at least a part of the floor surface or support deck of the helipad is at least partly illuminated by at least a number of said at least part of the one or multiple illumination elements such that at least a part of the floor surface or support deck radiates a first visual appearance which may correspond to at least a first message to be communicated to a helicopter crew or a pilot, into a second illumination state, in which at least a part of the floor surface or support deck of the helipad is at least partly illuminated by at least a number of said at least part of the one or multiple illumination elements such that at least a part of the floor surface or support deck of the helipad radiates a second visual appearance which may correspond to at least a second message to be communicated to the helicopter crew or the pilot.

Helipad and helipad illumination system The invention relates to a dynamic helipad illumination system (2) for dynamically illuminating a floor surface or supporting deck of helipad (1) at least partly in order to enable communication of information regarding one or more current local conditions of, at and/or near the helipad. The dynamic helipad illumination system comprises one or multiple illumination elements (3). The system is arranged to bring at least a part (2a) of said one or multiple illumination elements from a first illumination state, in which at least a part of the floor surface or support deck of the helipad is at least partly illuminated by at least a number of said at least part of the one or multiple illumination elements such that at least a part of the floor surface or support deck radiates a first visual appearance which may correspond to at least a first message to be communicated to a helicopter crew or a pilot, into a second illumination state, in which at least a part of the floor surface or support deck of the helipad is at least partly illuminated by at least a number of said at least part of the one or multiple illumination elements such that at least a part of the floor surface or support deck of the helipad radiates a second visual appearance which may correspond to at least a second message to be communicated to the helicopter crew or the pilot.

A heli-hoist platform for a wind turbine includes: a deck plate accessible by a worker from a helicopter; a barrier provided along the periphery of the deck plate; and a pair of support brackets extending along a longitudinal direction of the heli-hoist platform at both ends in a width direction of the deck plate.

A heli-hoist platform for a wind turbine includes: a deck plate accessible by a worker from a helicopter; a barrier provided along the periphery of the deck plate; and a pair of support brackets extending along a longitudinal direction of the heli-hoist platform at both ends in a width direction of the deck plate.