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Starting from the rudder, stretch the entire rod through the guides and blimp on the servo lever. Click the end 
fork into the lever on the rudder. 

 

Align the rudder to the straight position. Make sure that the servo lever is perpendicular to the top of the 
airplane and lock the rod with a screw. Shorten the excess length of the rod. 

Summary of Contents for KS07

Page 1: ...1 Complete set Yak 55 Instructions In this manual we are going to build a complete Yak 55 airplane Part of the set is the key equipment that the pilot needs to fly the EPP airplane ...

Page 2: ...l need 4x AA batteries Hobby Knife Small Phillips and Flat Screwdriver Small pliers or tweezers Lighter or hot air gun A piece of sandpaper Triangle Enough space For optional landing gear 2mm drill Airplane construction First prepare the individual EPP parts of the airplane that will bend These are the ailerons rudder and elevator ...

Page 3: ...e table with a piece of plastic which will protect the table and prevent the airplane from sticking to the table Prepare the electronics Unpack the servos radio with receiver and ESC Put batteries in the radio If the radio is not paired with the receiver pair them On the radio put the throttle down and switch all the switches to the upper position Press and hold the bind button and turn on the rad...

Page 4: ...Finally connect the battery The radio should respond to the receiver and the pairing is complete Disconnect the battery remove the pairing cable and turn off the radio Now connect also the servos to the receiver one is missing in the picture We will use the first 4 channels CH1 CH2 CH3 and CH4 Then turn on the radio put the throttle in the center position and plug the battery into the ESC After co...

Page 5: ...5 After 1 2 hours when the parts were loaded it should be possible to move the ailerons freely without resistance Prepare the center part of the plane and take out the cuttings ...

Page 6: ...circular protrusions Therefore it should not happen that you glue the wings in reverse Apply the activator to the middle part of the plane and glue on the wing then press them firmly together Be careful not to glue the ailerons We apply the same procedure to the second wing ...

Page 7: ...the center Then glue a wooden reinforcement into the groove The reinforcement fits into the wing precisely and should not stick out on either the top or bottom side Apply glue to the reinforcement from both sides insert it into the groove spray it with an activator and press the EPP around it firmly ...

Page 8: ...vator Spray the elevator with an activator apply glue to the central part and press tightly There are protrusions on the elevator and the central part thanks to which it should not be possible to glue the elevator in reverse ...

Page 9: ...rners of the servo and spray it with an activator After gluing the servo glue the lower part of the airplane to the center part Be careful not to glue the moving part of the servo Using a triangle make sure that the lower part is glued perpendicularly to the center along the entire length of the airplane Then spray the joint with an activator ...

Page 10: ...10 ...

Page 11: ...ne with an activator and apply glue to the struts On one edge which will be in front leave about 8cm of struts without the glue The front part of the glue free strut begins at the line that is drawn in front of the airplane in front of the wooden reinforcement ...

Page 12: ...12 ...

Page 13: ... the plane over and insert the Volta DM14 servo which will control the ailerons Stretch the cable to the underside of the airplane Then secure the servo from the sides with glue and spray it with an activator ...

Page 14: ... includes more 3D printed parts for use with other types of servos The wider part of the lever goes to the place marked by the groove Take a lever from the D14M servo and insert it into the prepared 3D print Apply some glue and cover the lever with the smaller 3D printed part ...

Page 15: ...hing with a pin into the 3D printing according to the pictures Secure the blimp sufficiently with snap ring so that it does wiggle but it can be rotated freely The snap ring goes to the pin stiffly so you need to use a little force ...

Page 16: ...d and is in the center position The lever should be as straight as possible within the capabilities of the teeth on the servo Finally lock the lever with a screw Select a smaller metric screw from the package Press the EPP with a screwdriver and bend it to the side so that you can screw the screw in ...

Page 17: ...ailerons Split the set of levers with a knife and glue the lever into the prepared hole in the aileron on the bottom side The entire bottom of the lever should be hidden in the wing and not stick out We repeat for the second aileron ...

Page 18: ...astic forks Roughen the 1cm of the sticks with sandpaper and apply glue Then glue sticks to forks There is a groove on the fork into which the rod will fit When the rod is in place spray it with an activator and put on piece of heat shrink Shrink it carefully with a lighter or hot air gun ...

Page 19: ...od through the servo lever and put a screw in the blimp Do not tighten the screw yet Click the fork into the lever on the ailerons from the outer side Make sure that the aileron is straight and tighten the screw in the blimp ...

Page 20: ...20 Repeat the same procedure on the other wing Prepare the guides Use only half of the guide set now ...

Page 21: ...he plane into the prepared holes Make sure that the guides are equally oriented so that the rod can go through the holes Glue a lever into the elevator from the upper side into the prepared cutout The whole bottom part of the lever needs to be in the EPP ...

Page 22: ...imp in the outer position on the servo lever and secure with the snap ring Put a screw in the blimp do not tighten it Put the first lever to the servo in the center of the airplane Put the lever so that it is perpendicular to the wings of the airplane it is pointing up ...

Page 23: ... is the same as for the short ones Take two thinner long rods and two forks Roughen the 1cm of the sticks with sandpaper and apply glue Then glue the stick to the fork On the fork there is a groove into which the rod will fit When the rod is in place spray it with an activator and put on a small piece of heat shrink Shrink it carefully with a lighter or hot air gun ...

Page 24: ...24 Stretch the elevator rod through the guides to the servo lever through the blimp Then click the fork into the elevator lever from the outer side ...

Page 25: ...that the elevator is leveled and tighten the blimp screw on the servo lever to secure the position of the rod Leave a piece of the rod behind the blimp for possible corrections and shorten the excess using splitters ...

Page 26: ...tall the servo for the rudder Take the second Volta D10M servo and push the cable through the center part of the airplane to the bottom part Pull the cable from behind the black strut Help yourself with tweezers ...

Page 27: ...ator Then put the second servo lever on the servo and secure it with a screw The lever is directed away from the elevator rod and is perpendicular to the rod Prepare the upper part of the airplane Apply glue to the black cabin spray the upper part with an activator and press them together ...

Page 28: ...28 Glue the top part to the rest of the plane Make sure that the upper part is perpendicular to the center of the airplane along the entire length ...

Page 29: ...dder holds on to airplane by a relatively small piece Be careful not to glue the moving part of the rudder to the airplane Put the glue on the part of the rudder in front of the hinge Apply activator on the plane and press together ...

Page 30: ...prepared cutout The whole bottom part of the lever needs to be into the EPP On the left side of the upper part glue the guides into the prepared cutouts Make sure that the guide holes are oriented in the same way so that you can stretch the rod through the holes ...

Page 31: ...uides and blimp on the servo lever Click the end fork into the lever on the rudder Align the rudder to the straight position Make sure that the servo lever is perpendicular to the top of the airplane and lock the rod with a screw Shorten the excess length of the rod ...

Page 32: ...32 Take out the side force generators of the cut out and cut each one according to the picture ...

Page 33: ...ger closer to the center of the airplane the smaller one is on the edge of the wing Glue the motor mount to the front of the airplane and prepare a motor with an ESC Screw metric screws into the motor on which the propeller will be mounted ...

Page 34: ...34 Rotate the motor so that the ESC is directed to the cables from the servos Screw the motor with the ESC to the motor mount using the sharp screws Glue the ESC to the airplane with a drop of glue ...

Page 35: ...he RC receiver Place the RC receiver on the center of the airplane between the wooden reinforcement and the printed line Mark the height of the receiver with a marker and cut a hole for the receiver in the EPP with a knife ...

Page 36: ...s are on the same side as the cables from the servos Secure the receiver with a glue if you made a hole for the receiver a little larger and it moves Since the Flysky receiver is a little larger shorten the black struts Cut the struts roughly at the level of the wood reinforcement ...

Page 37: ...r connecting the connectors turn on the radio pull the throttle down and connect the battery to the airplane If the part of the planes is moving in an opposite direction it is necessary to reverse the channel in the radio settings Testing always without a propeller Radio in mode 1 is shown in this manual The throttle lever is on the right side and does not return to the middle ...

Page 38: ...38 When the right gimbal is deflected to the right leave the throttle at the bottom the right aileron must be raised and the left one lowered ...

Page 39: ...39 When the left gimbal is deflected to the right the rudder turns to the right ...

Page 40: ...40 When the left gimbal is deflected downwards the elevator rises upwards ...

Page 41: ...bal all the way up Plug the battery to the airplane and wait for the ESC to beep Then pull the throttle down The ESC plays again and the throttle range is calibrated When everything works as it should Hide the excess cables from the servos under the black struts and glue their previously unglued part ...

Page 42: ...other on the wing Make a notch in the wing with a knife and hide the antenna into it Thus the antenna will not protrude from the wing to the outside Secure the antennas on several places with a drop of glue Mark the center of gravity of the airplane COG should be 18 cm from the tip of the airplane The center of gravity can be marked from the bottom with a marker ...

Page 43: ...ab the second screw If it does not work by hand you can help yourself with a screwdriver Make a small hole in the center part of the airplane and stretch the JST connector from the regulator to the top of the airplane The connector will be on the same side of the airplane as the battery and will not get tangled in the servo lever ...

Page 44: ...se the landing gear install the landing gear first and then tune the position of the battery Support the airplane with our fingers in the marked center of gravity under the wings and move the battery so that the airplane does not fall forward or backward The plane is done Almost The plane still lacks landing gear The latter is not needed for the flight as such but it facilitates landing and improv...

Page 45: ...d glue sandpaper and a 2mm drill with a drill A piece of wood for the drilling will also come in handy Take the carbon landing gear laminate wheel holder and wheels Enlarge the hole with a two millimeter drill in the laminate holder and in the wheel Drill a hole on both edges of the carbon landing gear The hole should be about 4mm from the edge ...

Page 46: ...ding gear through the prepared hole in the bottom part of the airplane Align it so that the airplane standing on the landing gear is straight Glue the leveled landing gear with glue On the glued landing gear slide the laminate droplets with the roughened side to the airplane Glue the droplest to the bottom part of the airplane ...

Page 47: ...the laminate holder is on the outer side Glue the laminate holder to the landing gear with glue Slide the wheel onto the screw and secure it with another nut Do not tighten the nut too much so that the wheel can rotate freely Put a drop of glue on the nut thereby secure it against spontaneous loosening and falling out Do the same procedure on the other side ...

Page 48: ...48 Asseble the shoes The shoes will be symmetrically right and left Each shoe consists of 3rd parts The part that has a protrusion at the back comes to the middle Glue the parts togeather ...

Page 49: ...49 Glue the shoes to the laminate holder on the roughened outer part The landing gear is done ...

Page 50: ...Cancel button Scroll the menu using the Up and Down buttons Save the selected settings by holding down the Cancel button Hold down the OK button and get to the main menu Use the Down button to select the Functions setup option and confirm by pressing the OK button Press the Down button to go to the Dual rate exp option and confirm with the OK button ...

Page 51: ... the plane turned on the effect is immediately visible The Yak 55 is a very maneuverable aerobatic airplane If you are new to models we recommend reducing the Rate to between 50 75 As your pilot skills improve over time you can increase the Rate to unleash the full potential of the airplane Expo introduces an exponential curve of the servo position relative to the gimbal position Simply around the...

Page 52: ...52 Press Cancel and get back to the main menu This time select System setup and confirm with the OK button Scroll down to RX Setup and confirm OK Select Failsafe and confirm OK ...

Page 53: ...ton Now the plane is built the radio is set up and it s time to go flying Always recharge your batteries before your flight Li po batteries need to be properly cared for Do not overcharge or discharge them way too much A suitable charger will take care of overcharging The airplane can fly about 5 6 minutes on one battery The ESC monitors the voltage of the battery and noticeably limits the motor p...

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