Summary of YAK-54F
Page 1
Assembly manual yak-54f.
Page 2
2 table of contents introduction ................................................................2 specifications .............................................................2 contents of kit/parts layout .........................................3 optional accessories .................................
Page 3
3 contents of kit/parts layout large replacement parts: efl2126 main wing efl2127 fuselage efl2128 tail assembly efl2129 wheel pants efl2130 landing gear covers efl2134 landing gear small replacement parts: efl2131 plywood tail control horns efl2133 aileron rods efl2135 hook & loop & servo tape efla...
Page 4
4 required electronics & accessories jrp6654** 6102fm, r610ul & 4-s241 - complete radio system jrpr610ul** r610ul 6ch fm receiver, shrinkwrap jrps241 s241 sub-micro servo (3) jrpa212 large arms w/screws - need 2 package efla311 20-amp brushless esc eflc3005 celectra 1-3 cell li-po charger efla208 fo...
Page 5
5 additional tools and adhesives tools hobby knife ruler hot glue gun t-pins small phillips screwdriver (efla257 - included with efla250) paper towel/tissue string tape pliers hex wrench: 3/32" (efla251 - included with efla250) nut driver: 5.5mm (efla255 - included with efla250) adhesives hot glue w...
Page 6
6 assembly or material used for the final assembly, no liability shall be assumed nor accepted for any damage resulting from the use of the final assembled product. By the act of using the assembled product, the user accepts all resulting liability. Please note that once assembly of the model has be...
Page 7
7 hinging the ailerons required parts wing hinges (10) aileron (left and right) 20mm x 80mm clear tape (4) required tools and adhesives foam-safe ca ruler paper towel / tissue 1. Remove the ailerons from the wing. Break in each hinge by folding them in half or over a thin ruler, then back over itsel...
Page 8
8 2. Install the hinges into the aileron. Slide the aileron hinges into the wing until there is a slight 1/64" gap between the wing and aileron. Apply foam-safe ca to each hinge, top and bottom. Do not use accelerator during this process, as the ca must soak into the hinge. Remove excess ca with a t...
Page 9
9 wing installation required parts wing fuselage required tools and adhesives foam-safe ca ruler paper towel / tissue string t-pins tape 1. Slide the wing into the fuselage. Center the wing in the fuselage. 2. Pin a string to the center aft fuselage. Use the string to square the wing to the fuselage...
Page 10
10 4. Once satisfied with the wing alignment, use foam-safe ca to glue the wing to the fuselage. Clean up excess glue with a tissue or paper towel. Note : you can use foam-safe activator to speed up this ca cure time. Horizontal stab installation required parts fuselage stabilizer required tools and...
Page 11
11 2. Pin the string from the previous section into the top of the fuselage. Check the alignment of the stabilizer using the string. 3. Sight down the fuselage and square the stabilizer to the wing. Sand the opening in the fuselage if necessary. 4. Once satisfied with the stabilizer alignment, use f...
Page 12
12 2. Install the hinges into an elevator half. Slide the elevator hinges into the stabilizer until there is a slight 1/64" gap between the stabilizer and elevator. Make sure the elevator can move freely. Apply foam-safe ca to each hinge, top and bottom. Do not use accelerator during this process, a...
Page 13
13 3. Locate and install the 2 5 / 8 " x 3/8" (66mm x 10mm) carbon elevator joiners on the top and bottom of the elevators using foam-safe ca. Do not block the hole for the elevator control horn. 4. Break in and install the remaining three hinges for the rudder..
Page 14
14 1. Use hot glue to install the rudder, elevator and aileron servos. Servo & receiver installation required parts airframe double-sided tape servo extension, 3" servo (3) receiver required tools and adhesives hot glue.
Page 15
15 2. Use double-sided tape to attach the receiver to the inside of the fuselage. Use a short 3" extension for the aileron servo if needed..
Page 16
16 1. Install the plywood control horns for the elevator and rudder using foam-safe ca. Square the horns to the control surface. Linkage installation required parts airframe cable crimp (8) plywood control horn (2) control cable micro control connector (6) control connector back plate (6) 2mm x 3mm ...
Page 17
17 2. Install the six micro control connectors into each of the three long servo arms. Secure them using the control connector back plates. 3. With the radio system on, install the servo arms on the servos..
Page 18
18 4. Use tape to hold the rudder in neutral. Slide a cable crimp onto the control cable. The cable then goes through the horn, then back through the crimp. Use pliers to secure the crimp. 5. Silde the micro cable adjust connector into the micro control connector and use a 2mm x 3mm screw to hold it...
Page 19
19 7. Repeat steps 4 through 6 for the elevator cables. 8. Attach the micro control horn to the ailerons using the micro control horn back plates and foam-safe ca. 9. Pass the “z” bend of the aileron linkages through the control horns. The opposite end goes through the micro control connector. With ...
Page 20
20 motor & speed control installation required parts airframe 6.6:1 (66t spur) gearbox (if you are not installing an outrunner motor) 10t pinion gear, 0.4 module x 6mm 12 x 6 prop (use 12 x 6 if you are using the gearbox with our recommended motor) 2.5mm x 10mm sheet metal screws (4) 3mm x 8mm screw...
Page 21
21 use the 10-tooth pinion we include with this airplane on the motor. 2. Attach the motor to the gearbox using the screws provided with the motor. 3. Make sure the gearbox sits flat against the back of the firewall by removing any excess glue. Attach the gearbox using the 2.5mm x 10mm sheet metal s...
Page 22
22 4. Attach the propeller as shown. Note : if you are using either the e-flite™ park 370 outrunner or park 400 outrunner, follow the next steps for changing the shaft and installation of this motor. 5. To use the e-flite outrunners, the shaft of the motor must exit the fixed part of the motor inste...
Page 23
23 6. Mount the motor, using two 3mm x 8mm screws and two 3mm washers. 7. Attach the propeller using the propeller adapter included with the motor. Note : if using a direct drive outrunner motor, a smaller prop is needed. Use 11 x 4.7 for the park 400 outrunner, 920 kv or use a 10 x 4.7 for the park...
Page 24
24 8. Secure the speed control location using double- sided tape or hook and loop. Run the lead from the speed control to the receiver. It may be necessary to use a servo extension. Exact speed control location may vary depending on the brand used and the center of gravity. This photo shows the loca...
Page 25
25 landing gear installation required parts airframe landing gear tail skid wheel pant (2) 1 ¼-inch wheel (2) wheel retainer (2) landing gear fairing (2) required tools and adhesives hot glue foam-safe ca 1. Glue the tail skid using foam-safe ca 2. Install the landing gear into position by pressing ...
Page 26
26 3. Install the landing gear fairings and wheel pants using hot glue. We recommend gluing the wire to the fairings only at the two ends. 4. Install the wheels using the wheel retainers and foam-safe ca..
Page 27
27 center of gravity / battery installation required parts airframe battery hook and loop 1. Glue the 50mm x 85mm fuselage doubler in position using foam-safe ca. This will be used for the front battery location. An important part of preparing the aircraft for flight is properly balancing the model....
Page 28
28 control throws aileron: 2" up 2" down elevator: 2 1 / 4 " up 2 1 / 4 " down rudder: 2 1 / 2 " right 2 1 / 2 " left note : the above throws are a good starting point for high rates and most flight conditions. Experienced 3d pilots can use even higher throws for extreme maneuvers..
Page 29
2005 official ama national model aircraft safety code general 1) i will not fly my model aircraft in sanctioned events, air shows or model flying demonstrations until it has been proven to be airworthy by having been previously, successfully flight tested. 2) i will not fly my model higher than appr...
Page 30
3) at all flying sites a straight or curved line(s) must be 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...
Page 31
7567 © 2005 horizon hobby, inc. 4105 fieldstone road champaign, illinois 61822 (877) 504-0233 horizonhobby.Com.