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WARRANTY

Tower Hobbies

®

guarantees this kit to be free from defects in both material and workmanship at the date of purchase.

This warranty does not cover any component parts damaged by use or modification. In no case shall Tower Hobbies’
liability exceed the original cost of the purchased kit. 
Further, Tower Hobbies reserves the right to change or modify
this warranty without notice.

In that Tower Hobbies has no control over the final assembly or material used for final assembly, no liability shall be
assumed nor accepted for any damage resulting from the use by the user of the final user-assembled product. By the act
of using the user-assembled product, the user accepts all resulting liability.

If the buyer is not prepared to accept the liability associated with the use of this product, the buyer is advised to
return this kit immediately in new and unused condition to the place of purchase.

READ THROUGH THIS MANUAL COMPLETELY BEFORE STARTING CONSTRUCTION. IT CONTAINS
IMPORTANT INSTRUCTIONS AND WARNINGS CONCERNING THE ASSEMBLY AND USE OF THIS MODEL.

© Copyright 2002   V 1.0

TOWZ1153 for TOWA1010

Tower Hobbies

P.O. Box 9078

Champaign, IL 61826

(800) 637-6050

www.towerhobbies.com

TOWER TRAINER

60 MKII

ALMOST-READY-TO-FLY RADIO CONTROLLED MODEL AIRPLANE

ASSEMBLY INSTRUCTIONS

ARF

Wingspan: 69 in [1,753mm] 

Wing Area: 880 sq in [57 dm

2

Weight: 7.25 lbs [3,289 g]  Length: 56.5 in [1,435mm] 

Wing Loading: 19 oz/sq ft [58 g/dm

2

Engine: .61 cu in [10 cc] two-stroke

Radio: 4 channel

®

®

Summary of Contents for TOWER TRAINER 60 MKII

Page 1: ... the user assembled product the user accepts all resulting liability If the buyer is not prepared to accept the liability associated with the use of this product the buyer is advised to return this kit immediately in new and unused condition to the place of purchase READ THROUGH THIS MANUAL COMPLETELY BEFORE STARTING CONSTRUCTION IT CONTAINS IMPORTANT INSTRUCTIONS AND WARNINGS CONCERNING THE ASSEM...

Page 2: ... and damage property 2 You must assemble the model according to the instructions Do not alter or modify the model as doing so may result in an unsafe or unflyable model 3 You must take time to assemble straight true and strong 4 You must use an R C radio system that is in first class condition and a correctly sized engine and components fuel tank wheels etc throughout the assembly process 5 You mu...

Page 3: ...HCAR0105 11 Blades HCAR0211 Small T pins HCAR5100 Builder s triangle HCAR0480 Small Phillips and flat blade screwdrivers Small metal file Pliers with wire cutter HCAR0630 Threadlocker GPMR6060 RTV Silicone Great Planes Easy Touch Bar Sander GPMR6170 Easy Touch Sandpaper 180 Grit GPMR6184 OPTIONAL SUPPLIES TOOLS Here is a list of optional tools mentioned in the manual that will help you assemble th...

Page 4: ...Servo Tray Mounting Blocks 2 9 Aileron Pushrods 2 10 Faslinks 2 11 Clevises 2 12 Silicone Clevis Retainers 2 13 Nylon Torque Rod Horns 2 2 In order to assemble the wing you will need the items shown in the photo above from your radio control system contents JOIN THE WING 3 Use 6 minute epoxy to glue the four 3mm plywood wing joiners together Use weights or clamps to hold the joiners in place until...

Page 5: ... servo is mounted in place 6 The servo will be centered in the wing after the two panels are joined Test fit the servo into the cutout of both the wing panels Trim the root rib if necessary to accommodate the servo and the servo wire Check the left wing panel in the same way 7 Trim the covering from the ends of the root ribs on both wing panels This is easily done with a sanding block and medium g...

Page 6: ...s measurement is not 3 3 4 95mm plus minus 1 8 3mm make adjustments in the plywood joiner It is possible that the joiner may require slight sanding to remove slivers of wood or excess epoxy that may interfere with the fit 12 Once satisfied with the fit of the joiner and the wing has the proper dihedral it is time to glue the two panels together First thoroughly coat the inside of both pockets wher...

Page 7: ...y Tip You may want to use a toothpick to get epoxy into the hole drilled in the aileron for the aileron torque rod arm Use a strip of waxed paper between the torque rod and the wing to keep from gluing the torque rod to the wing Be careful to keep the epoxy out of the area where the rod enters the trailing edge of the wing Place a small amount of petroleum jelly in this area Join the aileron to th...

Page 8: ...rvo and drill 1 16 1 6mm holes through the servo mount for the servo mounting screws Run the servo mounting screws into the mount and then remove them which will make threads in the wooden servo mount Add a drop of thin CA to the holes and allow to fully harden thus hardening the threads for more strength Note Do not apply the thin CA with the servo in place as you will glue it to the mount Mount ...

Page 9: ...ach the clevis to the torque rod horn hold the aileron level with the bottom of the wing using a straightedge to assure accuracy Mark the location where the wire crosses the hole in the servo arm At this location bend the wire 90 degrees 14 After bending the pushrods at your mark slide the Faslink over the wire and snap it into place on the pushrod Cut the wire that extends beyond the Faslink be c...

Page 10: ...n the stabilizer and elevator and the fin and rudder If necessary insert a 11 blade into the hinge slots and run it back and forth to enlarge them slightly Important Note Remember to insert the hinges with the cut running the correct direction 3 Use a hobby knife with a sharp 11 blade and cut the covering from the openings on both sides of the fuselage for the stab Also cut the covering from the o...

Page 11: ...required remove the stab and carefully sand the slot in the fuselage where the stab fits until it aligns with the wing 6 Stick a T pin into the top of the fuselage centered in the middle stringer over the firewall Tie a small loop in one end of a piece of non elastic string K S 801 Kevlar thread K SR4575 Slip the loop in the string over the T pin 7 Fold a piece of masking tape over the other end o...

Page 12: ...he fin and the top of the fuselage 11 Apply 30 minute epoxy to all joining surfaces of the stab Slide the stab into position Wipe away residual epoxy with a tissue dampened with rubbing denatured alcohol If the stab required a weight on one side or the other to align it with the wing position the weight Use the pin and string to confirm stab alignment Do not disturb the model until the epoxy has f...

Page 13: ...inute epoxy Apply glue around the dowels next to the fuselage and slide them in and out of the fuselage to help distribute the epoxy into the fuselage Using a paper towel spread the excess epoxy around the ends of the dowels This will fuelproof and add strength to the wood From the inside of the fuselage apply more epoxy around the dowels where they meet the sides of the fuselage These wing dowels...

Page 14: ...ertain the clunk at the end of the fuel line inside the tank does not contact the rear of the tank Otherwise the line may become stuck above the fuel level and discontinue fuel flow Remember or use a felt tip pen to mark which tube is the fuel pick up tube and which tube is the vent that will be connected to the pressure fitting on the muffler Place the fuel lines on the vent and fuel pick up tube...

Page 15: ...ine s mounting lugs are sandwiched between the engine mount and the engine mount straps Begin by placing four 4mm lock washers onto each of the four 4mm x 25mm machine screws Pass two of the screws through the two engine mount straps and place the screws through the back holes of the engine mount as shown in the photograph Place two 4mm nuts into the recesses on the bottom of the engine mount Star...

Page 16: ...he propeller nut 6 Measure the distance from the spinner backplate to the firewall It should be 5 1 2 140mm on both sides of the spinner backplate Adjust the engine if needed and tighten the screws evenly using Threadlocker on the screws and the nuts to secure the engine to the mount Following the engine manufacturer s instructions install the muffler to the engine 7 Attach the fuel lines to the e...

Page 17: ... during the following steps and you will notice that one wheel has a 4mm hole for the axle This wheel is the nose wheel only The same is true with the wheel collars Use the 4mm collars to assemble the nose gear 2 Test fit the two main landing gear wires into the pre drilled holes inside the channel located in the bottom of the fuselage If they will not go in easily drill out the two holes using a ...

Page 18: ...e tightness of the nut and test the connector s ability to rotate but still be somewhat tight When you are satisfied with this adjustment place a small amount of Threadlocker on the top of the nut and allow it to wick down into the threads 7 Place another wheel collar with a 3mm x 5mm Phillips head set screw onto the nose gear wire Then insert the nose gear wire into the nose gear bearing bracket ...

Page 19: ...9 680mm Threaded Elevator Rudder Pushrods 2 10 Battery Receiver Tray 1 11 2 6mm x 8mm Screws 4 12 Threaded One End Throttle Pushrod 1 13 Un threaded Steering Pushrod 1 14 Plastic Steering Throttle Pushrod Guide Tubes 2 15 10mm x 13mm x 87mm Balsa Pushrod Support 1 16 Hook and Loop Material 2 FINAL ASSEMBLY 2 The items shown will be needed from the radio system to complete this step 1 Servos 3 2 Re...

Page 20: ... steering rod guide tube Position the pushrod guide tubes to extend approximately 1 8 3mm past the firewall and glue them into place using 6 minute epoxy 6 Screw two nylon clevises 25 full turns onto the two threaded wire pushrods Slip silicone retainers over the clevises Slit the covering material where the guide tubes exit the fuselage with a hobby knife The location of the rudder tube exit is o...

Page 21: ...o the servos position the servos so the holes in the servo arms the holes you enlarged cross the elevator and rudder pushrods Carefully mark on the servo tray the four locations of each servo for the servo mounting screws At these locations drill 1 16 1 6mm holes through the servo tray Install the servo mounting screws and then remove them creating threads in the wood at all the locations Add a dr...

Page 22: ...ushrod connector look inside the carburetor on the engine and move the throttle pushrod until the barrel of the carburetor is 1 2 open With the throttle servo arm still centered on the servo tighten the screw on top of the screw lock pushrod connector Using the above photograph as a reference cut off the excess throttle pushrod but leave a minimum of 1 2 13mm of excess rod for adjustments later 8 ...

Page 23: ...support making sure the tubes rest in the slots and do not bind or put pressure on the pushrods When satisfied with the fit glue the support into place and glue the guide tubes to the support using 6 minute epoxy Be careful not to get glue in the opening of the guide tube or on the pushrod APPLY THE DECALS 1 Use scissors or a sharp hobby knife to cut the decals from the sheet 2 Be certain the mode...

Page 24: ... on the servo arm and or the clevis on the carburetor arm to gain or reduce movement The throw will be correct when the carburetor barrel will stop fully open at the same time the throttle stick reaches full With the throttle set up properly you should be able to run the engine with the trim lever set midway to the full position adjusted for a smooth but slow idle Then when it is time to stop the ...

Page 25: ...the C G after the weight has been installed Also if you found it necessary to move any radio components make sure it is securely re installed inside the fuselage Balance the Model Laterally 1 With the wing level have an assistant help you lift the model by the engine propeller shaft and the bottom of the fuselage under the TE of the fin Do this several times 2 If one wing always drops when you lif...

Page 26: ...sistant stand by your model and while you work the controls tell you what the control surfaces are doing Repeat this test with the engine running at various speeds with an assistant holding the model using hand signals to show you what is happening If the control surfaces do not respond correctly do not fly Find and correct the problem first Look for loose servo connections or broken wires corrode...

Page 27: ...inforce holes for wood screws with thin CA where appropriate servo mounting screws etc 10 Confirm that all controls operate in the correct direction and the throws are set up according to the manual 11 Make sure there are silicone retainers on all the clevises and that all servo arms are secured to the servos with the screws included with your radio 12 Secure connections between servo wires or ser...

Page 28: ...the nose wheel while on the ground If the plane starts to veer off immediately cut the power to prevent a mishap Although many R C pilots have taught themselves to fly we strongly recommend that you find an instructor to help get you started Although trainers offer the greatest opportunity of success for the self taught there is a high probability that you will crash your airplane on the first fli...

Page 29: ... rpm below peak speed By running the engine slightly rich you will help prevent dead stick landings caused by overheating and will keep your engine lubricated well during the break in period Have a ball But always stay in control and fly in a safe manner GOOD LUCK AND GREAT FLYING MODELING TERMS TRIVIA Adverse Yaw The tendency of an airplane to yaw in the opposite direction of the roll For instanc...

Page 30: ... edge of the horizontal stabilizer which provides control of the airplane about the pitch axis and causes the airplane to climb or dive The correct direction of control is to pull the transmitter elevator control stick back toward the bottom of the transmitter to move the elevator upward which causes the airplane to climb and vice versa to dive Epoxy A two part resin hardener glue that is extremel...

Page 31: ...echargeable batteries which are typically used as power for radio transmitters and receivers Nitro Nitromethane a fuel additive which increases a model engine s ability to idle low and improves high speed performance Ideal nitro content varies from engine to engine Refer to the engine manufacturer s instructions for best results Nitro content in fuel is indicated by the percent of the fuel Ni Star...

Page 32: ...ility This is the surface to which the rudder attaches Washout An intentional twist in the wing causing the wing tips to have a lower angle of attack than the wing root In other words the trailing edge is higher than the leading edge at the wing tips Washout helps prevent tip stalls Wheel Collar A small round retaining device used to keep wheels from sliding off an axle Wing The main lifting surfa...

Page 33: ...Lock Pushrod Connectors 4 3mm x 10mm Screws 8 2 6mm x 8mm Screws 4 2mm x 14mm Screws 1 Nose Wheel Steering Arm 1 Nose Wheel Bearing Block 14 CA Hinges 2 sets Control Horns 5 Clevises 4 Nylon Faslink Keepers 5 Silicone Clevis Keepers 2 Engine Mounting Straps 2 Nylon Aileron Torque Rod Control Horns 1 Spinner 1 Fuel Tubing 305mm long Ordering Replacement Parts Replacement parts are available from To...

Page 34: ...ty 72MHz Tower Hobbies 61 ABC RC Engine TOWG0161 Weight w muffler 23 8 oz Practical RPM Range 2 000 17 000 BHP RPM 1 9 16 000 Tower s 61 ABC engine is perfectly suited for the Tower Trainer 60 MKII offering power economy easy operation and the reliability you need for trouble free flying Features include CNC manufactured parts true ABC piston liner Schnuerle porting remote mounted needle valve muf...

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