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This is really the grand-daddy of moulded plastic systems in fiberglass rc airplanes regime. Polyester and epoxy resins have been handy for many years and these have been used in amalgam with glass chopped fiber mat or woven cloth, either to cover and gain strength to a component, or to be used for moulding details such as engine cowlings and wheel spats and fiberglass rc airplanes. Strengh for weight is good with GRP mouldings and is made even better when local addition of carbon-fibre rovings or cloth is introduced. Moulding a fiberglass rc airplanes can follow two routes. The shape can be cut from foam, filled with plaster, or similar filler, smoothed down, treated with a releasing agent and then coated with the resin and glass cloth or mat. This method has disadvantages, however, in that it leaves the smooth surface on the inside and not on the outside and has to be filled, filed and sanded to a smooth finish
How to make a mould for a Fiberglass RC Airplanes.
Although this is acceptable for one-off moulded subjects, a more certain system is to make a wooden plug of the shape of the subject to be modelled, get a finish to the standard you require for the finished moulding, treat it with a PVA releasing agent and plenty of coats of resin and glass mat to produce a rigid female mould. Depending on the shape of the subject it may be necessary to split the mould into sections so that the final moulding can be released. When fiberglass rc airplanes sets, the female parts are released from the wooden plug and cleaned; they are then ready for forming the final mouldings. A good waxing and polishing follows, making certain that they will come out of the moulds cleanly. Using glass surface tissue, resin and layers of glass cloth or chopped mat, the moulding is developed to the strength and thickness required before it is left to set and then removed from the moulds. This method obviously has the advantage of providing repeatability – the moulds, carefully looked after, should last for extensive moulding sessions.
Below is a great example of how Fibreglass rc airplanes have progressed
F6F Hellcat 120 size – 70″ ARF F-6F Radio Remote Control Fiberglass Nitro Gas RC Airplane
Brand New In Box, nitro gas powered, radio controlled, Almost-Ready-to-Fly 90-108 F6F Hellcat Fighter Airplane. It is designed for intermediate or advanced modeler. BRAND NEW IN BOX kit of the R/C F6F Hellcat. This kit is complete and 100% Guaranteed Factory Fresh! This kit is 100% Scale to the real plane.
6-Channels Fighter Airplane ! Great collection for all fans !!!
All-balsa construction keeps the plane lightweight, yet strong w/ Fiberglass Fuselage.
The Hellcat is a real beauty. Anyone who likes the war birds is bound to love this airplane. The kit includes a fiberglass fuselage, and is painted with in a dark blue and gray scheme.. The wings are built up and covered with Solortex cloth covering and painted. All control surfaces have beveled leading edges and the control horn mounts are preinstalled. The leading edge of the wing is pre-shaped. Completely workable flaps are also built into this kit. This kit can be fitted with either fix landing gear or 90 degree rotating retracts.
Just prior to the outbreak of American involvement in World War II, the U.S. Navy, having heard reports of a superb fighter produced by the Japanese, realized that the current Navy fighters, the F4F Wildcat and theF2A Buffalo, were close to, if not already, obsolete. Grumman Aircraft won a contract to produce a fighter that would match the performance of the fighters produced by the Axis powers. The F6F was the result. By January 1943 the Navy was receiving a steady supply of Hellcats, quickly proving the design while pressing the airplanes into service fighting the many sea battles of the Pacific. Although unable the match the Zero’s turning abilities, the Hellcat pilots learned to use the airplane’s greater horsepower, speed, and firepower to win air battles.
Engine Sold Seperately.
Kit Requires assembly
Can be flight-ready in 3-5 hours
HELLCAT MAIDEN FLIGHT 120 SIZE