Related Manuals for Composite-ARF Extra 300SX
Summary of Contents for Composite-ARF Extra 300SX
- Page 1 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com Instruction Manual Composite-ARF Extra 300SX, 2.6 m TAVS Technology version 1.01...
- Page 2 However, as manufacturers, we at Composite-ARF are not in a position to influence the way you build and operate your model, and we have no control over the methods you use to install, operate and maintain the radio control system components.
- Page 3 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com Supplementary Safety Notes Pre-flight checking: Before every session check that all the model’s working systems function correctly, and be sure to carry out a range check. The first time you fly any new model aircraft we strongly recommend that you enlist the help of an experienced modeller to help you check the model and offer advice while you are flying.
- Page 4 If you carefully checked all the points above and followed our advice exactly, you will have a safe and successful first flight - and many hours of pleasure with your Composite-ARF Extra 330SX. General information about...
- Page 5 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com Why? Because the axis of the hinge is not at the centreline of the aileron, so it moves slightly in and out when it trav- Centreline of hinge axis els, and the aileron gets a little "bigger" in surface area when moving up, and "smaller"...
- Page 6 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com shock absorbers. This plane is not made for crashing, but the landing gear will take some hard landings without prob- lems. Do not change or modify it, as the results would only be negative. We had plenty of time and experience to engi-...
- Page 7 Accessories Below are the things you may need to get your Composite-ARF Extra 300SX in the air. Some of them are mandatory, some of them can be chosen by you. What we list here are highly recom- mended parts, and have been thoroughly tested.
- Page 8 This is a very quick and easy plane to build, not requiring difficult techniques or special equip- ment, but even the building of Composite-ARF aircraft requires some suitable tools! You will probably have all these tools in your workshop anyway, but if not, they should be available in all good hobby shops, or hardware stores like "Home Depot"...
- Page 9 At Composite-ARF we try our best to offer you a high quality kit, with outstanding value-for- money, and as complete as possible. However, if you feel that some additional or different hard- ware should be included, please feel free to let us know.
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Page 10: Landing Gear
- and you can leave these in place to protect the bottom of the fuselage during assembly. The Composite-ARF landing gear for the Extras consists of 45 deg laminated carbon fibre cloth and a huge number of carbon rovings inside, all made under vacuum and heat- cured. - Page 11 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com lage (factory-installed), using the supplied M6 x 20mm bolts and washers into the pre-installed T-nuts. See photo P1. Note that the bend on the underside of each landing gear leg should be flush with the outside surface of the fuselage...
- Page 12 Dubro wheels are a little heavier but much more solid. Leg Cuffs The Extra 300SX has fairings at the top of each LG leg where they enter the fuselage, and these are supplied in the kit as lightweight fibreglass mouldings. It is a little more...
- Page 13 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com Cowling The 1 piece cowling is already cut and trimmed at the fac- tory, and should need almost no adjustment for a perfect fit. With the main undercarriage legs bolted into place, install the wing tube in the fuselage sleeve and place a small spir- it or incidence meter level on top of it to set the plane exact- ly level (side to side).
- Page 14 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com Canopy Frame The fibreglass canopy frame mountings are already com- pleted for you at the factory. It is secured to the fuselage with four M4 x 12mm allen bolts, fitted from the outside of the fuselage, through the plywood tabs that are glued to the canopy frame, into M4 T-nuts.
- Page 15 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com while the epoxy-microballoons mixture is curing to prevent any warps or twists. If you wish you can tint the inside of the canopy using one of the aerosol spray paints used for painting the inside of polycarbonate car bodies (eg: the Tamiya or Lexanit ranges). Use many very light ‘mist’...
- Page 16 Use this same method to attach the phenolic extension arms to metal discs for the aileron & rudder surfaces also. At Composite-ARF we only use the aluminium ‘Double-Loc’ servo arms from SWB manufacturing (USA) and we highly recommend them. These arms clamp onto the servo output shaft with no lost movement (play) at all.
- Page 17 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com approx. 25mm from the surface of the elevator, and rough- sand the part that will be glued into the balsa block inside the elevator. Ideally the hole in the horn for the clevise should be exactly perpendicular to the centre of the hinge tube.
- Page 18 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com Unfortunately it’s not possible for us to mill these slots longer during manufacture - as the L.E. spar would fall apart on the CNC milling table. However, this is a very quick job with a Permagrit file, or similar (see photo right). You can easily achieve 50 degree throws if you wish.
- Page 19 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com Rudder Trial fit the the double-sided phenolic control horn in the slot that is already milled in the base of the rudder, mark the central part that will be glued in, and scuff it well with coarse sandpaper.
- Page 20 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com discs, and centre both servos using your R/C. Rough sand and clean the bottom surface of the 2 phenolic horns, and the top of the metal discs. With the R/C still switched ‘ON’ place the C-ARF rudder servo horns on top of the output discs, with both ‘hooks’...
- Page 21 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com Wings The wings are 95% finished at the factory, and have already been installed on your fuselage to set the align- ment. Slide the wings onto the wing tube and check for a perfect fit. You can sand the wing roots a little if needed.
- Page 22 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com these to metal servo output discs, or to use full metal servo arms (like those shown here from SWB) - and not the stan- dard plastic output discs supplied with the servos. Secure the phenolic servo arm extensions to the metal output discs...
- Page 23 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com make up the linkage from the M3 clevises, 45mm long threaded rod and nuts provided - and connect the linkage from the servo arm to the control surface horn while the glue is curing to help maintain perfect alignment. When...
- Page 24 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com bination, having plenty of power - and a weight reduction of about 800 grams over the DA-100 version. Full details of this installation are also described below. All photos of the 3W motor are shown mounted on the 300SX (Patty Wagstaff scheme).
- Page 25 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com 3W state in their instructions that the engine must not be mounted directly to metal stand-offs, as unequal lengths, or unequal tightening of the bolts could cause crankcase dis- tortion. Therefore we made a mounting plate from 2 layers...
- Page 26 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com After first trimming flights we added a single thin 6mm ID washer behind the left side stand-offs and the motor dome, to increase the sidethrust very slightly - and also a thin washer behind both lower stand-offs which actually gave the very slight upthrust (approx +0.25 degree) required for...
- Page 27 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com site side of the fuselage to the cylinder - and use a ‘cross- over’ header to give you enough length. Included in the kit is one cnc milled plywood mount to suit the TD110K, or similar 80mm diameter canister. Insert...
- Page 28 Shown here is the installation of a pair of MTW headers and TD75k canisters, as included in the optional set available from Composite-ARF. (see relevant webpage for details of currently available accessories & options). The assembled canisters and headers are inserted into the...
- Page 29 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com paint (as used for car manifolds/exhausts) Exhaust Cooling Whatever type of exhaust system you chose to fit, make sure that the assembled headers and canisters, or pipe, can be inserted from the front, through the motor-dome - and make the hole(s) at least 18mm (3/4”) bigger than the...
- Page 30 LED battery displays. It comes complete (below) Powerbox, Receiver and with hi-current connectors and is fitted with anti-suppres- switch location in the Extra 300SX. sion chokes on all channels. The full ‘PowerBox’ range is available from C-ARF as an option. Please visit our website for more details.
- Page 31 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com To save weight in the 3W powered plane, we chose two 5-cell (AA-sized) 1400 mAH packs - and these were both fixed inside the front of the motor dome. No additional lead was required to achieve the correct Centre of Gravity.
- Page 32 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com of the receiver. Of course, if you are using a ‘Powerbox’ this unit is already fitted with all the ceramic chokes. Also no ‘Y’ leads are needed, as the powerbox provides multiple inputs for each channel.
- Page 33 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com Motor Ignition System The ignition unit is normally fixed to the motordome, as close to the engine as possible - because of the length of the HT leads that connect to the spark plug(s). Mount it on...
- Page 34 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com Are all tubes and wires protected from chafing where they pass thru’ the holes in fibre glass parts or bulkheads with rubber grommets, or short lengths of split silicone tubing? Especially if you have installed the internal mini-pipe set-up, you also must make sure that no fuel tubing or wires can come into contact the exhausts.
- Page 35 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com Engine Thrustline: 2.5 - 3° depending on propeller Already given in the instructions, down thrust should initial- ly be set at 0° degrees and right thrust 2.5 - 3 degrees, depending on the prop used. We recommend a 27 x 10 on a 75 - 80cc motor, and a 28 x10 carbon prop for any 100cc engine.
- Page 36 "cracks". It’s up to you now - you can’t blame it on the aircraft anymore….! We hope that you enjoyed building your Extra 300SX. Please let us know if you think that any hardware is missing or inadequate. We tried to make this airplane as complete as possible. With good feedback from customers you will help us to continue making good things even better.
- Page 37 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com Appendix Extra 300SX, 2.6m Kit (version 1.0) Kit Contents Quantity Description Fuselage Wing, right (with 2 servo hatches taped in place) Wing, left (with 2 servo hatches taped in place) Stab, right Stab, left...
- Page 38 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com Nut, M3 (throttle linkage) Clevise steel, M3 (throttle linkage) All thread, M3 x 125mm (throttle linkage) Ball-link, M3 (throttle linkage) Stop Nut, M3 (throttle linkage) Fibreglass band, 25mm x 300mm (tank base fixing etc) Sheetmetal screws, Ø3.5 x 18mm (exhaust mount fixing)
- Page 39 Canister set for DA-100 (product # 910100) PowerBox 40/24, dual NiCad crossover unit. (product #960200) PowerSwitch, pair, 20A, for dual NiCads (product #960300) Please check our website : www.composite-arf.com, for current availability of options and accessories. (above) Contents of the complete kit...
- Page 40 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com (above) Contents of Fuselage hardware pack Contents of Wing Hardware Contents of Stab Hardware pack (2 sets) pack (2 sets) (above) Contents of Rudder (above) Contents of Spare Hardware pack Hardware pack (above) Contents of Milled wood and Phenolic pack...
- Page 41 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com Full-sized Baffle template for Extra 300SX, 2.6m span. Adjust back edge of baffle so that it is 6mm (1/4”) from cooling fins and crankcase of your motor. (This line suits 3W 80cc Xi motor)
- Page 42 Composite-ARF Extra 300SX (2.6m span) techsupport@composite-arf.com Mac Mike C (10 Jan 2007)
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