Aluminium foil inch (0.7 mm cycle) and is around long; RCA 77 has 13 corrugations per inch (0.5 mm cycle). RCA ribbon material is around 1 to 1.5 micrometres (0.00005 inch) thick. The new Nady ribbon plus AEA both state that they use 2 micrometre aluminium ribbon in their microphones. Some aluminium foil products can be recycled at around 5% of the original energy cost, although many aluminium laminates are not recycled due to difficulties in separating the components and low yield of aluminium metal. Aluminium foil Aluminium foil (or aluminum foil), often referred to with the misnomer tin foil, is aluminium
Bruce foil foil far out from the centerline of the hull, and angling it so that a perpendicular line through the center of the underwater portion of the foil will intersect the center of pressure of the sails. Like a traditional centerboard, the Bruce foil is generally a symmetric design, such as the NACA 00xx series, which relies on the leeward slip of the hull to provide the angle of attack needed to generate lift. When mounted on the lee side, the Bruce foil generates an upwards lift in addition to lateral force, and when mounted on the windward side, it generates