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Related Manuals for Extreme Flight RC EXTRA 300EXP
Summary of Contents for Extreme Flight RC EXTRA 300EXP
- Page 1 85" EXTRA 300EXP 50cc Assembly Manual Copyright 2019 Extreme Flight RC...
- Page 2 Congratulations on your purchase of the Extreme Flight RC 85" Extra 300EXP ARF! Purpose built for the multitude of 50cc engines on the market, this brand new airframe is the perfect complement to these venerable power plants that have been neglected for far too long. Our design team started with a very specific goal with careful consideration of weight, wing area and performance parameters to make sure we delivered the ultimate light weight 50cc performance machine.
- Page 3 Serious injury, destruction of property, or even death may result from the misuse of this product. Extreme Flight RC is providing you, the consumer with a very high quality model aircraft component kit, from which you, the consumer, will assemble a flying model. It is beyond our control to monitor the finished aircraft you produce.
- Page 4 A few tips to ensure success 1. We are very pleased with the level of craftsmanship displayed by the builders in our factory. Through hundreds of grueling test flights containing maneuvers that no aircraft should be subjected to, our prototypes have remained rigid and completely airworthy. Having said that, it is impossible for us to inspect every glue joint in the aircraft.
- Page 6 Since the 85" Extra (and most of our other giant scale models) now come pre-hinged and the hinge gaps sealed, the most time consuming task of the assembly process has been eliminated. This leaves a very minimal amount of gluing for the assembler, which consists of installing the composite control horns in the ailerons, elevators and rudder, with the only the rudder hinges needing to be glued.
- Page 7 3. Scuff the portion of the horns that will be inserted into the elevator with sandpaper. 4. Locate your epoxy, mixing cup, an old pushrod to stir with and a length of nylon cable tie to apply the epoxy. We have used Pacer 30 minute Z-poxy for over 2 decades with excellent results and zero bond failures and we highly recommend this product.
- Page 8 5. Mix a generous batch of epoxy being careful to use equal parts resin and hardener. 6. Use the nylon cable tie to apply epoxy to the slots and thoroughly coat the control horns on both sides of each horn.
- Page 9 7. Insert the control horns into the slots and ensure that the horns are properly seated against the base plate and the base plate is flush against the control surface.
- Page 10 8. Wipe away the excess epoxy with a paper towel soaked in denatured alcohol, making sure to do a good job of cleaning the area. Insert a bolt 3mm bolt and ball link into position and confirm proper alignment before the epoxy sets.
- Page 11 9. Repeat this process for the other stab half, the aileron control horns and the rudder control horns. 10. Assemble and install the servo mounting grommets. Connect an EF 20 AWG servo extension to each aileron servo lead (secure with heat shrink tubing or an EF Servo Safety Clip) and install the elevator and aileron servos in their designated locations.
- Page 12 11. Locate the linkage components from the hardware package and the recommended servo arms for each surface. Thread a ball link onto each end of the provided turnbuckle pushrods. Install the linkages for the elevators and ailerons as pictured using the provided 3mm fasteners. Be sure to use the small conical spacers between the aluminum servo arm and ball link to prevent binding.
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Page 13: Fuselage Assembly
Fuselage Assembly 12. We’ll begin by installing the landing gear. Locate the carbon fiber main landing gear, 4-4mm bolts, lock nuts and washers. Insert the gear into the slot on the bottom of the fuselage and center it in the slot. Secure the landing gear with 4 4mm bolts, washers and nylon insert lock nuts by inserting the bolts and washers into the pre-drilled holes in the aluminum gear mounts inside the fuselage with a long T-handle wrench. - Page 14 13. The landing gear fairings add a nice scale touch to the aircraft. Slide the fairing onto the gear and up against the fuselage. Secure the fairing to the gear with "Goop" silicon glue.
- Page 15 14. Locate the 2 axles, 2 locking nuts, 2 wheels, 4 wheel collars, 2 outer pant supports and plywood spacers and 2 wheel pants from the hardware package. Place the threaded portion of the axle through the hole in the landing gear, place a washer onto the axle and secure the axle with a locking nut.
- Page 16 There is a pre-cut slot in the wheel pant to allow it to fit over the axle. You may need to open this slot with a rotary tool to allow it to slide into position over the axle. Screw the machined aluminum outer wheel pant bracket to the plywood spacers and secure to the interior wall of the wheel pant with epoxy, making sure it fits over the end of the axle and positions the wheel pant correctly.
- Page 17 17. Reinstall the wheel pants and secure with 2 3mm bolts inserted through the carbon gear and into the blind nuts in the wheel pants. Be sure to use thread lock on the bolts! Tighten the setscrew to secure the wheel pant bracket to the axle.
- Page 18 18. Next let’s install the rudder onto the fuselage. Glue the hinges into the rudder first with epoxy and allow to cure. Use a pushrod to apply epoxy to the holes in the rudder post and push the rudder into position and wipe away any excess epoxy with a paper towel and denatured alcohol.
- Page 19 21. The distance from the front face of the motor box to the motor drive washer is 172mm or 6.8 inches (this is the length of the DLE-61, the longest of the engines recommended). Because the DA-50 is the recommended motor we have included a set of machined aluminum standoffs to be used in conjunction with the stock 2.5"...
- Page 20 22. The following photos show the DA-50 and Xpwr 40 mounted on the 85" Extra. We used the full length Blazing Star XXL Standoff Set to achieve the proper spacing with the Xpwr 40. ***Please note that we removed the laser scribed panels in the F1 former in our electric powered Extra to allow cooling air to reach the batteries***...
- Page 21 23. There is a hole in the bottom of the motorbox to mount your throttle servo. This location corresponds to the throttle arm on the DA-50 carb and provides a straight shot from the servo arm to the throttle arm. Other engine makes may require a different location. If using the DA-50 mount the servo in the provided location and fabricate the throttle linkage from the provided components.
- Page 22 24. Mount your rudder servo in the servo tray under the canopy using the manufacturer supplied mounting hardware. For proper geometry use the Extreme Flight 3” pull-pull rudder arm. Assemble the pull-pull cable linkage as shown by inserting the end of the pull-pull cable into one of the aluminum crimp tubes.
- Page 24 25. If you plan to keep your stabs attached to the fuselage during transport then a 36" 20Awg servo extension is long enough. If you plan to remove the stabs you will need to use a 48" extension. Secure the extension to the elevator servo lead with an EF Servo Safety Clip or heat shrink tubing.
- Page 25 This completes the assembly of the 85" Extra 300EXP. As a final step clean the entire aircraft with glass cleaner, apply your choice of graphics, then apply a coat of spray-on wax and buff the finish to a high gloss with a micro fiber cloth.
- Page 26 60-70% exponential. Again, this is just a starting point. Adjust to your liking. Thanks again for your purchase of the Extreme Flight RC 85" Extra 300EXP ARF. I hope you enjoy assembling and flying yours as much as I have mine.
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