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E-FLITE AT-6 25e Texan ARF, Assembly Manual, Page: 16 / 52

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E-flite AT-6 Texan ARF Assembly Manual

Main Radio Installation

Required Parts

Fuselage 

Receiver

Servo w/hardware (3) 

Pushrod connector (3)

Hook and loop material

Required Tools and Adhesives

Thin CA 

Felt-tipped pen

Side cutters 

Pliers

Pin drill 

Phillips screwdriver: #1

Drill bit: 1/16-inch (1.5mm), 5/64-inch (2mm)

Note

: The installation of the elevator servos will require 

either of the following options, as using a standard 

Y-harness for the servos will result in the servos moving 

the control surfaces in the opposite directions.

Option 1

: Use a computer radio to mix the elevator 

servos together using two separate channels. Ensure you 

use a correct mix in your radio that has an active trim to 

trim both elevators in flight.

Option 2

: Use a reversing Y-harness (EXRA320) between 

the two servos and the receiver.

 

1. Turn on your radio system and select a new model if 

using a computer radio. Make sure all the sub trims have 

been set to 0 and no mixing functions are turned on. 

Center the trim levers and stick at this time as well. Plug 

the servos into the radio system and make sure all servos 

operate and are centered as well.

 

2. Prepare the rudder and elevator servos for installation 

by removing any unnecessary arms from the servo horns 

as shown using side cutters. Install any grommets and 

brass eyelets at this time as well.



 3. Position the elevator servo in the fuselage, aligning the 

outer hole in the servo arm with the elevator pushrod. 

Mark the locations for the servo mounting screws on the 

servo mounting rails using a felt-tipped pen.

Summary of Contents for AT-6 25e Texan ARF

Page 1: ...Specifications Wingspan 54 in 1370mm Length 39 in 990mm Wing Area 455 sq in 29 35 sq dm Weight w Battery 3 9 4 5 lb 1 8 2 0 kg Weight w o Battery 3 3 25 oz 1 4 1 5 kg AT 6 25e Texan ARF Assembly Manual ...

Page 2: ...ach major section In addition check boxes have been placed next to each step to keep track of each step completed Steps with a single circle are performed once while steps with two circles indicate that the step will require repeating such as for a right or left wing panel two servos etc Remember to take your time and follow the directions Table of Contents Specifications 1 Introduction 2 Using th...

Page 3: ...ting transmitter just purchase the other required equipment separately We recommend the crystal free interference free Spektrum DX7 2 4GHz DSM 7 channel system If using your own transmitter we recommend the JR SPORT MC35 Micro servos If you own the Spektrum DX7 radio just add the AR7000 DSM2 7 channel receiver and seven of our JR SPORT MC35 Micro servos Complete Radio System SPM2710 DX7 DSM 7CH sy...

Page 4: ...s EFLA110 Power Meter EFL4515 Robart AT 6 Retracts EFL4512 Cockpit kit EFLA150 Military Pilot bust Required Tools and Adhesives Tools Equipment EFLA250 Park Flyer Tool Assortment 5 piece Or Purchase Separately EFLA257 Screwdriver 1 and 2 Phillips or included with EFLA250 EFLA251 Hex Wrench 3 32 inch or included with EFLA250 6 minute epoxy Canopy glue Card stock Covering iron Drill Drill bit 1 16 i...

Page 5: ...rranty is limited to the original Purchaser Purchaser and is not transferable REPAIR OR REPLACEMENT AS PROVIDED UNDER THIS WARRANTY IS THE EXCLUSIVE REMEDY OF THE PURCHASER This warranty covers only those Products purchased from an authorized Horizon dealer Third party transactions are not covered by this warranty Proof of purchase is required for warranty claims Further Horizon reserves the right...

Page 6: ...Your local hobby store and or place of purchase cannot provide warranty support or repair Once assembly setup or use of the Product has been started you must contact Horizon directly This will enable Horizon to better answer your questions and service you in the event that you may need any assistance For questions or assistance please direct your email to productsupport horizonhobby com or call 87...

Page 7: ... following address Horizon Product Support 4105 Fieldstone Road Champaign Illinois 61822 Please call 877 504 0233 with any questions or concerns regarding this product or warranty Safety Precautions and Warnings As the user of this product you are solely responsible for operating it in a manner that does not endanger yourself and others or result in damage to the product or the property of others ...

Page 8: ... inch 530mm pushrod wire 2 21 3 4 inch 553mm pushrod wire Required Tools and Adhesives Drill Drill bit 5 64 inch 2mm Phillips screwdriver 1 Threadlock Hex wrench included with kit 1 Slide the stabilizer tube all the way into the stabilizer 2 Use a drill and 5 64 inch 2mm drill bit to drill through the hole in the bottom of the stabilizer and into the stabilizer tube 3 Secure the tube using a 3mm x...

Page 9: ...ces the bottom of the fuselage Slide the remaining stabilizer onto the tube With both stabilizer halves tight against the fuselage use a drill and 5 64 inch 2mm drill bit to drill through the hole in the stabilizer and into the stabilizer tube 5 Secure the remaining stabilizer onto the tube using a 3mm x 10mm self tapping screw and 1 Phillips screwdriver ...

Page 10: ...s Thread the clevis onto one of the 20 7 8 inch 530mm pushrod wires m 7 Slide the pushrod wire into the opening in the fuselage that aligns with the stabilizer control horn Snap the clevis onto the elevator control horn 8 Repeat Steps 6 and 7 for the remaining elevator pushrod installation ...

Page 11: ...the pushrod wire into the opening in the fuselage that aligns with the stabilizer control horn Snap the clevis onto the elevator control horn 10 Slide the tail wheel onto the tail gear wire Use a 1 16 inch wheel collar setscrew and the included hex wrench to secure the wheel Remember to use threadlock on the setscrew to prevent it from vibrating loose ...

Page 12: ...wdriver Make sure to use threadlock on all four screws so they do not vibrate loose 2 Attach the motor to the firewall using four 4 40 x 1 2 inch socket head screws four 4 washers and a 3 32 inch ball driver Make sure to use threadlock on the four screws to prevent them from vibrating loose Note The blind nuts in the fuselage for mounting the motor can be positioned for a variety of motors Positio...

Page 13: ...remove the area between each of the cylinders to allow cooling air to pass through the cowling and over the motor 5 Use 6 minute epoxy to glue the dummy radial engine inside the cowling 6 Cut four strips of card stock Make a 1 8 inch 3mm hole in the end of each strip Align the hole with the blind nut and use low tack tape to hold the card stock to the fuselage ...

Page 14: ...ed propeller may strip the gears or cause poor flight characteristics Note If it is necessary to enlarge the hole in the propeller make sure to check the balance of the propeller afterwards 8 Slide the propeller and adapter onto the motor shaft Position the cowling so it will not be rubbing on the propeller when the motor is running Tape the cowling in position on the fuselage 9 Use a felt tipped ...

Page 15: ... cowling back onto the fuselage and secure it using four 4 40 x 1 4 inch socket head screws and a 3 32 inch ball driver Make sure to use threadlock on the screws to prevent them from vibrating loose 12 Use medium CA to glue the radiator scoop to the side of the fuselage behind the cowling A felt tipped pen can be used to color in the scoop to give that open look ...

Page 16: ...t has an active trim to trim both elevators in flight Option 2 Use a reversing Y harness EXRA320 between the two servos and the receiver 1 Turn on your radio system and select a new model if using a computer radio Make sure all the sub trims have been set to 0 and no mixing functions are turned on Center the trim levers and stick at this time as well Plug the servos into the radio system and make ...

Page 17: ...for the servo mounting screws mm 5 Apply a few drops of thin CA to each of the holes drilled in the previous step to harden the surrounding wood mm 6 Mount the servo using the screws provided with the servo and a 1 Phillips screwdriver 7 Repeat Steps 3 through 6 to install the remaining elevator servo and rudder servo ...

Page 18: ...nds excessively outside the fuselage as this will greatly reduce the range of your radio system mm 9 Physically center the rudder Use a felt tipped pen to mark the rudder pushrod where it crosses the outer hole of the rudder servo arm mm 10 Remove the rudder pushrod from the fuselage and make a 90 degree bend in the pushrod at the mark made in the previous step using pliers You will also have to r...

Page 19: ...hole in the servo horn from the topside of the horn Use a pushrod connector to secure the pushrod to the horn mm 13 Slide the pushrod back into the pushrod tube and thread the clevis back onto the pushrod With the radio on and the rudder stick and trim centered secure the servo arm to the servo Center the rudder by threading the clevis in or out as necessary 14 Repeat Steps 9 through 13 to connect...

Page 20: ...epare the aileron servos for installation by removing any unnecessary arms from the servo horns as shown using side cutters Install any grommets and brass eyelets at this time as well The servos will have the arms installed opposite of each other as shown in the photo m 3 Position the aileron servo on the servo cover so the arm is centered lengthwise in the cutout The arm will align with the edge ...

Page 21: ...ng vibrations from the airframe You may have to notch the servo block to allow access for the servo wire m 6 Use a drill and 1 16 inch 1 5mm drill bit to drill the holes for the servo mounting screws m 7 Apply a few drops of thin CA to each of the holes drilled in the previous step to harden the surrounding wood m 8 Use a 1 Phillips screwdriver to install the screws provided with the servos to att...

Page 22: ...hillips screwdriver to secure the servo cover to the wing m 10 Slide a clevis retainer onto a nylon clevis Thread the clevis onto one of the 2 1 2 inch 64mm pushrod wires m 11 Attach the clevis to the control horn of the aileron Center the aileron and aileron servo and use a felt tipped pen to mark where the pushrod crosses the outer hole of the servo horn ...

Page 23: ...rk Use a pushrod connector to secure the pushrod wire to the servo arm Use side cutters to remove any excess wire m 13 Secure a 6 inch 152mm servo extension to the aileron servo lead and route it out the end of the wing panel 14 Repeat Steps 3 through 14 for the remaining aileron servo installation ...

Page 24: ...radio system and make sure they operate and are centered as well 2 Prepare the flap servos for installation by removing any unnecessary arms from the servo horns as shown You will also need to clean up the cuts to prevent any portion of the removed arm from rubbing against the servo cover when the servos are installed Install any grommets and brass eyelets at this time as well The servos will have...

Page 25: ...wn in the previous step Use a pencil to mark the cover for the servo mounting blocks m 5 Use 6 minute epoxy to glue the servo mounting block to the servo cover as shown Allow the epoxy to fully cure before proceeding Note You will find the servo mounting blocks in your kit to vary in length from the measurements listed above They have been cut to the correct length from the manufacturer ...

Page 26: ...to harden the surrounding wood Use a 1 Phillips screwdriver to install the screws provided with the servo to attach it to the servo mounting blocks m 7 Slide a clevis retainer onto a nylon clevis Thread the clevis onto one of the 2 7 8 inch 73mm pushrod wires Measure back 2 7 8 inch 73mm from the pin in the clevis and mark the pushrod wire Make a 90 degree bend at the mark This will give you a goo...

Page 27: ...e flap servo cover m 11 With the radio system on move the control on the radio to the Up Flap position and test fit the cover If the cover does not fit without binding the flap or flap servo adjust the length of the linkage or change the end points at the radio system to eliminate any binding Repeat the process for Down Flap and check that the full throw is adjusted as noted in the Control Throw s...

Page 28: ...t have been upgraded from the preproduction versions shown in this manual Please note your wire struts will have the main wire yoke offset as per the real AT 6 landing gear m 1 Position the main gear on the rails of the wing center section Use a pencil to transfer the locations for the four mounting screws through the gear and onto the rails m 2 Use a drill and 5 64 inch 2mm drill bit to drill the...

Page 29: ...elf tapping screws to secure the gear in the wing center section m 5 Use a file to create a flat on the bottom of the landing gear wire This provides a place to tighten the screws for the wheel collars making them more secure on the wire m 6 Slide one of the wheel collars on the landing gear wire ...

Page 30: ...r section Retract servo w hardware Retracts w hardware Retract linkage 2 Nylon clevis 2 Clevis retainer 2 Required Tools and Adhesives Thin CA Pencil or felt tipped pen Covering iron Hobby knife Drill File Phillips screwdriver 1 Threadlock 1 16 inch wheenl collar w setscrew 2 Drill bit 1 16 inch 1 5mm 5 64 inch 2mm Optional Parts Robart 2 1 2 inch 63mm wheels 1 Position the retract servo in the op...

Page 31: ...thin CA to each hole to harden the surrounding wood 4 Remove the servo horn from the servo Use a 1 Phillips screwdriver to install the screws provided with the retract servo to secure it in the wing center section 5 Using a hobby knife cut a cross in the covering over the opening for the wheel Use a covering iron to seal the covering tight against the wing before removing the covering ...

Page 32: ...g iron to seal the covering into the opening for a super clean retract installation m 7 Position the main gear on the rails of the wing center section Use a pencil to transfer the locations for the four mounting screws through the gear and onto the rails m 8 Use a drill and 5 64 inch 2mm drill bit to drill the four holes for the mounting screws Use care not to accidentally drill through the top of...

Page 33: ...hillips screwdriver and the four self tapping screws included with the retracts to secure the gear in the wing center section m 11 Slide a clevis retainer onto a nylon clevis Thread the clevis onto one of the retract pushrod wires m 12 Attach the clevis to the actuator arm of the retract 13 Repeat Steps 7 through 12 for the remaining retract ...

Page 34: ...act mechanism that will not operate cause excessive loads on the retract servo and possibly drain the flight battery prematurely Too little travel will result in a retract that will not lock in the up or down positions Test the operation of the gear and locking mechanism by cycling the gear using the radio system Simulate a load on the locking mechanism by pushing or pulling on the wire strut in b...

Page 35: ...king them more secure on the wire m 18 Slide one of the wheel collars on the landing gear wire Slide the wheel onto the landing gear wire then another wheel collar Use a 3mm x 4mm machine screw and 1 Phillips screwdriver to secure the wheel collar with the edge of the collar aligned with the end of the landing gear wire Use threadlock on the screw to prevent it from vibrating loose ...

Page 36: ...ew in the wheel collar with a 1 Phillips screwdriver Use threadlock prevent the screw from vibrating loose m 20 Check that the wheel is centered in the wheel well Either bend the strut or change the position of the strut in the retract mechanism until the wheel is centered in the wheel well 21 Repeat Steps 17 through 20 to install the remaining wheel ...

Page 37: ...ns between the motor and speed control Secure the speed control inside the fuselage using hook and loop tape Note The photo shows the older E flite 40 amp speed control unit All of our prototypes used the new E flite 60 and 40 amp Switching BEC ESC s 2 Remove the battery hatch by pushing it forward and lifting it upwards at the rear next to the canopy ...

Page 38: ...peed control Use the throttle to check that the motor rotates counterclockwise when viewed from the front If not follow the directions included with your speed control to change the direction of the motor rotation Note Never check the motor rotation on the bench with the propeller installed The plane could move and cause serious injury Always check the motor without the propeller to avoid injury I...

Page 39: ... 40 x 3 4 inch socket head screw 2 Required Tools and Adhesives Ball driver 3 32 inch Threadlock Flat blade screwdriver 1 Secure a Y harness to both the flap and aileron extensions in one wing panel 2 Slide one of the wing tubes into the wing center section that corresponds to the wing panel from Step 1 3 Tie the string from the center section to the ends of the Y harness that will plug into the r...

Page 40: ...nter section while sliding the wing panel in position 6 While sliding the panel on make sure to align the tab in the center section into the outer panel Also use care when sliding the pin on the center flap with the appropriate hole in the outer flap as not to damage the pin 7 Use a 4 40 X 3 4 inch socket head screw and 3 32 inch ball driver to secure the wing panel to the center section Use threa...

Page 41: ...the Y harness and tie it around the ends that will lead to the remaining wing panel 9 Carefully pull the ends from the Y harness to the outer edge of the center section 10 Secure the leads from the remaining wing panel to the Y harness Repeat Steps 2 5 6 and 7 to secure the wing panel ...

Page 42: ... 12 Secure the wing to the fuselage using the two 1 4 20 x 2 inch nylon bolts and flat blade screwdriver Basic Cockpit and Accessories Required Parts Assembled airframe Canopy Pilot figure Radiator scoop grey Landing gear fairing 2 Required Tools and Adhesives Medium CA RC 56 canopy glue Felt tipped pen Tie wrap 4 Side cutters Low tack tape 1 Use medium CA to glue the pilot figure in the fuselage ...

Page 43: ...p on the bottom of the wing center section A felt tipped pen can be used to color in the scoop to give that open look Trim the radiator scoop as necessary for a perfect fit and glue it only to the wing using medium CA 4 Attach the landing gear fairings to the wheel struts using two tie wraps per fairing Use side cutters to remove the excess material from the tie wraps Once the fairings have been a...

Page 44: ...gure Canopy Available separately Cockpit Kit EFL4512 Pilot Figure EFLA150 Required Tools and Adhesives Medium CA RC 56 canopy glue Hobby knife Low tack tape Sandpaper Testors Model Master Paints Note The cockpit kit comes prepainted from our vendor Our first samples were not painted and were painted in the following colors for those who would like to duplicate the model as shown on the box ...

Page 45: ...he top cushion Seat backs Olive Drab for the seat bars and leather for the inside seat area 1 Remove covering over the cockpit area and sand the base until smooth Note You may want to tape off the fuselage around the cockpit opening for the next few steps to help protect the fuselage during the floor installation 2 Glue the floor assembly to the fuselage using medium CA ...

Page 46: ...ft structure once in place and not cause any height issues 4 Glue the two seat backs in place using Medium CA The seat backs should rest on the floor 5 Glue the aft instrument hood in place using Medium CA You will want to place the aft instrument decal from your kit on the panel at this time Place the front instrument panel decal in place at this time ...

Page 47: ...aced all the way back almost against the seat backs 7 Use RC 56 canopy glue to attach the canopy to the fuselage Use low tack tape to hold the canopy in position until the glue fully cures Note that the front of the canopy has a black strip that aligns with the anti glare panel on the front of the fuselage ...

Page 48: ...p Down Elevator High Rate 1 inch 25mm Up Down Low Rate 1 2 inch 13mm Up Down Rudder High Rate 1 3 4 inch 44mm Right Left Low Rate 1 inch 25mm Right Left These are general guidelines measured from our own flight tests You can experiment with higher rates to match your preferred style of flying Once all the control throws have been set make sure to slide the clevis retainers over the clevises to pre...

Page 49: ...ing Before each flying session be sure to range check your radio See your radio manual for the recommended range and instructions for your radio system Each radio manufacturer specifies different procedures for their radio systems Next start the motor With the model securely anchored check the range again The range test should not be significantly affected If it is don t attempt to fly Have your r...

Page 50: ...ric on the market today Aileron rolls are smooth and precise Loops are strong and large The AT 6 will pick up speed very quickly and can fly at a brisk pace if you so choose It is very leisurely in the air at around 5 8 throttle Once you are up and have the model trimmed out climb to a safe altitude and put the flaps down Set them for both the mid and full rate and note any trim changes Have your ...

Page 51: ... established in front of which all flying takes place with the other side for spectators Only personnel involved with flying the aircraft are allowed at or in front of the flight line Intentional flying behind the flight line is prohibited 4 I will operate my model using only radio control frequencies currently allowed by the Federal Communications Commission Only properly licensed Amateurs are au...

Page 52: ...11067 2007 Horizon Hobby Inc 4105 Fieldstone Road Champaign Illinois 61822 877 504 0233 horizonhobby com E fliteRC com ...

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