{"product_id":"fournier-rf-4d-spw-2815mm-gfk-rumpf-rippenflache-aeronaut-135501","title":"Fournier RF-4D, Span 2815mm, GRP fuselage - Ribbed wing, Aeronaut # 135501","description":"\u003ch1 style=\"text-align: center;\"\u003eFournier RF-4D, Wingspan 2815mm, GRP fuselage - Ribbed wing\u003cbr\u003e\nAeronaut # 135501\u003c\/h1\u003e\n\n\u003cp\u003eThe Fournier RF-4D model, popular for many years, is now equipped with ribbed wings.\u003cbr\u003e\nThe wings are built with precisely laser-cut components on the well-known aero-naut jig, which allows for quick and warp-free assembly. Sophisticated auxiliary templates aim for precise and swift construction.\u003cbr\u003e\nThe wings are planked with pre-cut maple veneer, which has been bonded with a special textile fiber to achieve easy processing and high durability. The material, called A-Tex, is a product manufactured by aero-naut itself and is used in many aero-naut kits.\u003cbr\u003e\nThe 3D-style construction manual, typical for aero-naut, enables step-by-step assembly and supports the model builder with 3D drawings and detailed text. This makes assembly easy.\u003c\/p\u003e\n\n\u003cp\u003eThe model was designed at a scale of 1:4 so that retractable landing gear and airbrakes could also be installed. Moderate aerobatics are possible with the Fournier. Loops flown with feeling, effective turns, rolls, etc., are no problem.\u003cbr\u003e\nLong approaches can be precisely controlled with the help of the airbrakes. The wing is two-part and has a connection made of an 18mm duralumin tube; the horizontal stabilizer is mounted on carbon tubes and firmly glued to the fuselage. Access to the RC equipment is provided by a large cutout on the fuselage bottom. The wing locking mechanism is also accessible here.\u003cbr\u003e\nThe GRP fuselage is made to aero-naut's usual high quality and has moldings and all penetrations for wings and horizontal stabilizer. The horizontally divided, two-part GRP cowl already has guides for centering both parts.\u003cbr\u003e\nThe cockpit interior is based on the original; these parts are made of ABS. The construction manual provides further tips on how to design the interior (e.g., upholstery).\u003cbr\u003e\nThe sprung retractable landing gear with hollow rubber tires was specially developed for this model. The duralumin and steel parts are precisely waterjet cut, hard-soldered, and powder-coated. The landing gear retracts into an ABS fender built into the fuselage. The pneumatic retractable landing gear control with an 18mm diameter (bore) compressed air cylinder is designed as single-acting. This is an important contribution to safety, as in the event of a pressure loss in the system, the landing gear is automatically extended! Included, among other things, is an adjustable pressure reducer, with which the timing of the retraction and extension can be adjusted to \"scale\". The control valve is also designed as single-acting; actuation is done by pressing a cam (lobe) mounted on, for example, a (mini) servo, while a coil spring handles the extension. Only a hand pump with a pressure gauge (e.g., from Robart) is not included.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eThe model kit contains:\u003c\/b\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eDetailed 3D construction manual\u003c\/li\u003e\n\t\u003cli\u003eGRP fuselage and cowl\u003c\/li\u003e\n\t\u003cli\u003eWing kit made of laser-cut wooden parts (incl. A-Tex planking)\u003c\/li\u003e\n\t\u003cli\u003eAirbrakes, spinner, retractable landing gear and outrigger wheels, tail skid, dummy exhausts and filler necks\u003c\/li\u003e\n\t\u003cli\u003eCanopy\u003c\/li\u003e\n\t\u003cli\u003eABS parts\u003c\/li\u003e\n\t\u003cli\u003eCNC-milled plywood and GRP parts\u003c\/li\u003e\n\t\u003cli\u003eStamped parts\u003c\/li\u003e\n\t\u003cli\u003eDuralumin tube, GRP tube (connection guide)\u003c\/li\u003e\n\t\u003cli\u003eWing locking mechanism\u003c\/li\u003e\n\t\u003cli\u003eSmall parts set\u003c\/li\u003e\n\t\u003cli\u003eThe construction of the wings is simplified and warp-free by the well-known aero-naut jig made of Depron\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Aero-Naut-Modellbau","offers":[{"title":"Default Title","offer_id":53439534203223,"sku":"AN135501","price":509.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/8318\/0119\/files\/AN135501_b1_d6254ae7-8191-4b1c-9830-fb2a3830b7df.jpg?v=1780990474","url":"https:\/\/hoelleinshop.com\/en\/products\/fournier-rf-4d-spw-2815mm-gfk-rumpf-rippenflache-aeronaut-135501","provider":"hoelleinshop","version":"1.0","type":"link"}