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the wings, then release the stick. There is a memory aid that
may help keep you out of trouble when the plane is flying toward
you – “put the stick under the low wing.” In other words, move
the aileron stick in the direction of the low wing to raise that
wing. When you are comfortable flying the aircraft, you can
practice using the rudder along with the ailerons to “coordinate”
the turns – usually, a small amount of rudder applied in the
direction of the turn will keep the tail following in the exact same
track as the nose.

The most common mistake when learning to fly is “over control.”
Think of pressure instead of large movements of the control
sticks. Remember, most trainers will recover from almost any
over control situation (given enough altitude) if you simply let go
of the sticks.

Add and practice one maneuver at a time, learning how your
model behaves in each one. For ultra-smooth flying and normal
maneuvers, we recommend using the “low-rate” settings. High
rate control throws will give your model enough control for
loops, barrel rolls, and many other basic aerobatic maneuvers.

Landing

When it’s time to land, fly a normal landing pattern and
approach as follows: Reduce the power to about 1/4 throttle and
fly a downwind leg far enough out from the runway to allow you
to make a gentle 180° turn. As you make the turn into the wind
for your final approach, pull the throttle back to idle. Most trainer
planes have a lot of lift, so you will need a slow, reliable idle in
order to achieve a nice, slow landing. Allow the plane to keep
descending on a gradual glide slope until you are about 3 feet
off the runway. Gradually apply a little up elevator to flare for
landing. You should apply just enough up elevator to hold the
plane just off the runway while the excess speed bleeds off.The
model should settle onto the runway for a slow, slightly nose-
high landing.

After you have several flights on your model, it’s time to reward
yourself with your first aerobatic maneuver – a loop. Climb to a
safe altitude and turn into the wind. Apply full throttle, level the
wings, then slowly pull back on the elevator stick to about 1/2 to
3/4 up elevator (depending on your throws), and hold this
control input. After you go over the top and start down the
backside of the loop, pull the throttle back to about half. This will
keep the stresses on the airplane low and the airspeed
relatively constant. Keep holding “up” elevator until the plane is
level, and then slowly release the stick. You’re done! It’s really
that easy!

FUEL MIXTURE ADJUSTMENTS

The fuel mixture should be richened so the engine runs at
about 200 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 instance, when right
aileron is applied, the airplane yaws to the left, thus
opposing the turn. Adverse yaw is common in trainer type
airplanes having flat bottom wings. It is most noticeable at
slow speeds and high angles of attack, such as during
takeoffs and when stretching a landing approach. Caused
by the unequal drag of the upward and downward deflection
of the ailerons, this undesirable trait can be minimized by
setting up the ailerons with Differential Throw or by
coordinating the turns, using the aileron and rudder controls
simultaneously. (See Differential Throw.)

Ailerons  - Hinged control surfaces located on the trailing
edge of the wing, one on each side, which provide control of
the airplane about the roll axis. The control direction is often
confusing to first time modelers. For a right roll or turn, the
right hand aileron is moved upward and the left hand aileron
downward, and vice versa for a left roll or turn.

Angle of Attack - The angle that the wing penetrates the
air. As the angle of attack increases so does lift and drag, up
to a point.

ARF - A prefabricated model - Almost Ready to Fly.

Buddy Box - Two similar transmitters that are wired
together with a “trainer cord.” This is most useful when
learning to fly — it’s the same as having dual controls. The
instructor can take control by using the “trainer switch” on
his transmitter.

CA (Abbreviation for “Cyanoacrylate”) - An instant type glue
that is available in various viscosities (Thin, Medium, Thick,
and Gel). These glues are ideal for the assembly of wood

CAUTION (THIS APPLIES TO ALL R/C AIRPLANES): If,
while flying, you notice any unusual sounds, such as a low-
pitched “buzz,” this may indicate control surface 

flutter.

Because flutter can quickly destroy components of your
airplane, any time you detect flutter you must immediately
cut the throttle and land the airplane! Check all servo
grommets for deterioration (this may indicate which surface
fluttered), and make sure all pushrod linkages are secure
and free of play. If the control surface fluttered once, it
probably will flutter again under similar circumstances unless
you can eliminate the free-play or flexing in the linkages.
Here are some things which can cause flutter: Excessive
hinge gap; Not mounting control horns solidly; Poor fit of
clevis pin in horn; Side-play of pushrod in guide tube caused
by tight bends; Excessive 

play or backlash in servo gears;

and Insecure servo mounting.

29

Содержание TOWER TRAINER 60 MKII

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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 ...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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