Tractor aircraft propeller

pusher65 - 70in35 - 40in

GT variable pitch propellers blades are manufactured from a mixture of different wood. The blade roots are made of highly compressed Beech wood, which is specially produced for aviation applications and has a tensile strength similar to metal. It is tapered, mated through special joints and bonded to the outer blade which is made of lightwood, Spruce / Cedar. The entire blade surface is then laminated with two or more layers of Glass, Carbon or Kevlar and Epoxy resin. Leading edge protection is applied by injecting a special two-component resin. This guards against impact from gravel, rain and grass. It is easily replaceable in case of damage. The blades are finished with several coats of two-component acrylic and polyurethane paint. Different colours are available. GT blades can be operated in any weather conditions and also from unpaved airstrips. The blade root retainer is bonded to a special inner conical threaded bush made of aluminium or steel. This technology was pioneered by a propeller manufacturer during WW II and is still perfectly functional and offers the following advantages when compared to a metal blade: