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Extreme Flight Turbo Bushmaster, User Manual, Page: 20 / 27

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20 

 

28.  Install the lower cowl half, with the 4 3mm bolts provided in the hardware package, 

followed by the top piece of the cowl with 4 more 3mm bolts.  In this photo we have 

added the EF anodized washers for a touch of bling. 

 

29.  Locate the stab/elevator set along with the elevator control horns.  Using the same 

method as the ailerons, hinge both stab halves and install the control horns in the 

location shown. 

 

Summary of Contents for Turbo Bushmaster

Page 1: ...1 120 Turbo Bushmaster Copyright 2018 Extreme Flight ...

Page 2: ...nautics in order to be properly insured and to operate your model at AMA sanctioned flying fields only If you are not willing to accept ALL liability for the use of this product please return it to the place of purchase immediately Extreme Flight RC guarantees this kit to be free of defects in materials and workmanship for a period of 30 DAYS from the date of purchase All warranty claims must be a...

Page 3: ...o 1 header and single canister muffler setup which delivers quiet consistent power and long flight times Of course the Xpwr 60 version with a 12S 5000 mah battery setup provides excellent power and is clean and quiet Whichever power system you choose you are certain to have a most fulfilling flying experience The Bushmaster features a lightweight built up balsa and plywood airframe with strategica...

Page 4: ... for Xpwr 60 Castle Creations 160HV ESC Falcon 24x9 carbon prop for DA 70 Xoar 24x10 or 24x12 wood or Falcon 26x8 carbon prop for Xpwr 60 Qty 2 EF 6 inch 20 AWG servo extension Flaps Qty 3 EF 24 inch 20 AWG servo extension Ailerons throttle Qty 3 EF 36 inch 20 AWG servo extension Elevators tailwheel servo Qty 1 EF 48 inch 20 AWG servo extension Rudder 2 sets EF MPX Multi wire servo plug 2 wire ver...

Page 5: ...ce 2 Using a soldering iron or a sharp hobby knife remove the covering from the slots for the aileron and flap horns Place the control horns into the baseplate Dry fit the horns into their respective slots and trim any debris from the slot until the control horn seats properly against the control surface Sand away any portion of the baseplate that may extend beyond the edge of the bevel Once satis...

Page 6: ...e take a few moments to familiarize yourself with this process if you have not installed hinge points before There are several ways to do this and several adhesives you can use We will describe the way that we do it as this method has proven itself over many years of model building If you are new to this type of hinging process then I recommend that you install a single hinge first just to acquain...

Page 7: ... use a piece of pushrod or dowel to apply the epoxy to the hinge hole 8 Apply epoxy to the barbed section of the hinge on one side and insert it into the hole until the center of the hinge is centered on the hinge line Using a paper towel soaked with acetone or denatured alcohol wipe away any epoxy that has been squeezed out of the hole ...

Page 8: ...ting the wing aside to dry do a final cleaning of the hinge knuckles with a paper towel soaked with denatured alcohol or acetone to remove any epoxy residue If you find any of the hinges are stiff after drying apply a drop of acetone to each hinge with a Q tip and move the surface back and forth several times to loosen it up As a final step I typically apply a couple drops of Teflon lubricant to e...

Page 9: ...ered It is very important that you use the same length servo arms for both flap and aileron servos 13 For ease of field assembly we highly recommend using 2 sets of the Extreme Flight MPX Multi wire servo plugs Attach these to the servo extensions protruding from the wing for a fast and easy single plug solution to wing servo connections Be sure to secure the MPX plug lead so that it cannot flop a...

Page 10: ...and flap linkage are assembled the same way 15 Locate the wing fences and trial fit onto the wing Some sanding may be required for best fit We recommend gluing the fences in place with epoxy Use tape or clamps to hold the fences in place while the epoxy cures making sure they are perpendicular to the surface of the wing Two strips of tape placed parallel to the fences will keep excess epoxy from g...

Page 11: ...11 ...

Page 12: ...t Secure the carbon fiber landing gear to the fuselage with the provided 4mm socket head cap bolts washers and lock nuts 17 Apply a bead of Goop adhesive to the carbon gear and slide the landing gear fairing into position against the bottom of the fuselage Secure with tape until the adhesive dries ...

Page 13: ...13 18 Attach the axles to the carbon gear with the supplied washer and locknut ...

Page 14: ...14 19 File a flat spot on the axles for the wheel collar set screws to seat against Secure the wheel into position with a collar placed on each side Be sure to use Loctite on all fasteners ...

Page 15: ...ill seat and again apply blue threadlock compound to all screws 21 Install the tailwheel assembly onto the bottom rear of the fuselage with the provided 3mm bolts included in the hardware package This step will allow us to turn the fuselage over and place it on its feet which will allow a better position to install the engine ...

Page 16: ...4 holes at the designated location for your motor engine 23 If using the Xpwr 60 it is highly recommend that you use the Blazing Star XXL Standoff Set to achieve proper spacing with minimal hassle If using the DA 70 the Blazing Star mount makes proper engine positioning a breeze ...

Page 17: ...o clearly see the installation of the 2 into 1 header canister setup and the throttle servo installation Here are a few more pics of the engine setup including the ignition mounting location and the cooling cutouts on the bottom of the cowl ...

Page 18: ... our power system running properly In the previous photo you can see the cutouts we made in addition to the air dam we installed to pull air over the engine and out of the cowl This was fabricated from a piece of aluminum flashing purchased from a local home improvement store Proper ventilation is a must ...

Page 19: ...ing it from the cowl by opening the cowl and exhaust stacks before gluing in place Remove as much paint as possible from the gluing surface as possible and glue in place with 30 minute epoxy 27 Before final installation of the cowl and depending on your choice of power system install either your gas tank on the tank battery tray with plumbing or the ESC ...

Page 20: ...he top piece of the cowl with 4 more 3mm bolts In this photo we have added the EF anodized washers for a touch of bling 29 Locate the stab elevator set along with the elevator control horns Using the same method as the ailerons hinge both stab halves and install the control horns in the location shown ...

Page 21: ...21 ...

Page 22: ... tube into the sleeve in the fuselage rear then slide both stabs onto the tube and secure with 2 3mm bolts and washers inserted through the tabs at the stab root and into the blind nuts pre installed in the fuselage Be sure to use thread lock on all bolts 32 Install your elevator servos in the proved location and assemble the linkage as shown in the following pictures ...

Page 23: ...into position and trace around it with a fine tipped felt marker Use a sharp hobby knife to remove the covering as shown for a wood to wood bond and glue in place with medium CA or epoxy Be sure to check alignment with rudder before gluing ...

Page 24: ...vators glue the rudder hinges and rudder control horns in place with 30 minute epoxy 35 Install the rudder servo in the designated location inside the vertical fin with the output spline oriented toward the rear of the model and assemble the linkage as shown ...

Page 25: ...25 36 Slide the carbon fiber rudder mounting tube into the receptacle in the fuselage Slide the rudder into position and secure with 2 3mm bolts and washers ...

Page 26: ...e the linkage as shown 38 If you are planning to install the float kit and fly from water install the keel on the bottom of the fuselage Glue in place with epoxy making sure it is perpendicular to the bottom of the fuselage Use tape to keep it properly positioned until the glue dries ...

Page 27: ...olts are inserted into the pre installed blind nuts This concludes the assembly process for the 120 Turbo Bushmaster Preparing for flight With the wing and struts attached place your batteries in the model and pick up the Bushmaster by the wing tube Shift the batteries until the plane balances on the tube then secure the batteries with velcro This is a safe location to begin test flying It is reco...

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