摘要:
A device is for a helicopter deck comprising a supporting, fluid-tight floor. The helicopter deck comprises an overlying, draining top cover formed out of at least two top-cover sections arranged side by side. Each of the top-cover sections comprise a surface portion provided with several drain openings and at least one channel wall projecting downwards, provided with a foot portion which is arranged to be positioned on the surface of the floor. At least one drain channel is defined by the top cover, the floor and two adjacent channel walls. The drain channel is provided with a mouth portion which is connected to a collecting channel. Fluid-transport paths are formed through the at least one drain channel between the drain openings and a drain in the collecting channel. The top-cover sections are detachable from the floor and adjacent top-cover sections.
摘要:
A ground environment mat for VSTOL aircraft and the like, comprising drag elements controlling the effect of laterally transmitted ground jets resulting from jet entry to the mat, so as to reduce hot gas and debris ingestion by the aircraft's air intakes, suck-down on the aircraft's surfaces and ground or deck erosion or heating. The drag elements may comprise or perforated metal twisted flat strips tubes or perforated elements hingedly attached to a backing layer.
摘要:
Low profile portable panels consisting of fiberglass-reinforced plastic cosite mats which include hollow inorganic silica spheres in the plastic resin to reduce weight have recessed molded lips and bushings along all edges for connecting panels together with bolts to form expedient airfield surfacing and repair having high flexural strength and high structural capacity.
摘要:
A jet stream dispersion takeoff and landing platform for vertical takeoff and landing airplanes including a flat plate member having an upper jet stream inlet side and a lower jet stream outlet side, supporting legs therefor, the plate member further having a plurality of circular openings therethrough with a downwardly opening circular closure for each of the openings and U-shaped brackets on the outlet side supporting and limiting the downward opening of each circular closure.
摘要:
A modular fire prevention flooring system includes a plurality of fire prevention flooring planks. Each plank is generally tubular and forms a drain channel. Fluids spilled onto the upper surface of the flooring system may drain through a plurality of drain holes formed in the upper surface of the planks. The planks may further include a metal filler positioned within the drain channels to stop combustion of burning fluids spilled into the drain channels. The metal filler may break up burning liquids and remove heat therefrom. In some embodiments, a purging fluid may be flowed through the planks to purge any spilled fluids therefrom.
摘要:
A modular flooring system is provided to convert uneven terrain into a substantially horizontal flat surface. The modular flooring system may include a frame defining the area desired for the substantially horizontal flat surface, a plurality of malleable support members that may be used as a single layer or multiple layers, where the malleable support members may be loosely filled sand-filled bags. The system may also include a plurality of flat rigid panels larger than the malleable support members to bridge the gaps between adjacent malleable support members, thus transforming a generally level layer of malleable support members into a substantially flat flooring surface.
摘要:
Multipurpose panels having L-shaped tabs are interconnected using durable connectors to form a multipurpose mat that facilitates mobility over otherwise unstable terrain. In one embodiment, four-sided panels are fabricated from laminations of fiberglass-reinforced plastic (FRP) with radiused rectangular holes machined in each of two adjacent edges and a recessed L-shaped tab formed along opposing adjacent edges. The connectors are fabricated from corrosion resistant metal and assembled to precise specifications prior to insertion in the rectangular holes machined in pre-specified types of panel. Top and bottom plates of durable connectors are fabricated from 6061-T6 aluminum stock. A threaded bolt used to tie the plates together, to which a liquid threadlocker is applied, is fabricated from a steel alloy suitable for use with aluminum. Two specially fabricated tools, a spacer guide and an alignment tool, may be used to optimize installation. These also may be fabricated from 6061-T6 aluminum stock.
摘要:
Shock-attenuating seamless surface systems, for use on vertical takeoff and landing zones, can be installed on a base or installed in a recess in the base such that an integrated installation is obtained.All systems have a surface layer with a bottom and outer edges; ribs extending from the bottom of the surface layer for defining an array of air-filled cells affixed to the bottom of the surface layer; and a first layer of sealer and aggregate spread over the surface layer, the outer edges, and the base immediate to surface system.More complex systems may include one or more of the following: a plurality of median ribs extending a shorter distance from the bottom of the surface layer than the defining ribs in order to give added support against a strong blow striking the surface layer and the array of air-filled cells affixed thereto; a void area left in place of at least one median rib in order to facilitate cutting through the surface layer; a second layer of sealer spread under the array of air-filled cells and above the base in order to prevent the escape of air therefrom upon impact thereto and also for holding the array of air-filled cells in a substantially vertical orientation with respect to the base; a sloping outer edge surrounding all sides to help prevent tripping and facilitate access by handicapped person; and a beveled outer edge surrounding all sides for facilitating attachment to the base.
摘要:
A portable airfield runway having an anchoring and tensioning system is crised of a plurality of fiberglass reinforced plastic panels anchored with earth anchors at each end of the runway and uses self-contained hydraulic tensioning and load maintenance units to maintain constant tension on the runway while allowing for both expansion/contraction due to temperature and dynamic aircraft braking loads.
摘要:
A resilient open-comparted three-dimensional structure suitable for use as a ground surface covering comprising an interlocked assembly of two pluralities of strips respectively formed at intervals with apertures and profiled regions which co-operate to interlock together the two pluralities of strips, a slit, slot, groove or the like extending into each aperture to facilitate interlocking of the two pluralities of strips. Two or more such structures may be superimposed on one another and a layer of resilient material may be provided between superimposed structures.