Plastic landing pad of interconnected panels

摘要: A landing pad for helicopters is made of individual laminated panels having top and bottom laminae woven fiberglass a relatively thick core lamina nonwoven organic fiber which bonded to the said by polyester resin extensively impregnated with particulate filler. Upper lower surfaces are textured matching recesses protuberances respectively give an interlocking characteristic that effective when laid upon one another in separate layers. In final form layers stapled together cohesive high durability.