A rotary engineâs housing is a simple epitrochiod of two circles. The rotor spins eccentrically inside the housing, thus changing the volume of three spaces (chambers) formed between the two. Rotary engines share the same four-stroke sequence of piston engines: intake, compression, power, and exhaust.
Fibre-reinforced plastic. Fibre-reinforced plastic (FRP) (also called fibre-reinforced polymer, or fiber-reinforced plastic) is a composite material made of a polymer matrix reinforced with fibres. The fibres are usually glass, carbon, aramid, or basalt. Rarely, other fibres such as paper, wood, or asbestos have been used.
Glass-reinforced plastic. Glass-reinforced plastic (GRP), is a composite material or fibre-reinforced polymer made of a plastic reinforced by fine fibers made of glass. Like carbon fibre reinforced plastic, the composite material is commonly referred to by the name of its reinforcing fibres (fibreglass). Other benefits include: