Instruction Manual Specifications are subjected to change without notice due to product continuous improvements.
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The Wargo Signature Yak 55 was designed to be the perfect 3D and aerobatic training aircraft. It is a perfect combination of value, performance and durability with no compromises in aerobatic precision and the ability to perform every 3D aerobatic maneuver with authority. Michael Wargo, our team pilot and 3D expert wanted a transition aircraft that can take a pilot from sport flying to confidently flying 3D aerobatics.
For Kit version: Parts included in the kit: 1. Fuselage - 1pc 8. Screw 3*10 - 4 pcs 2. Wing with aileron (right and left) - 2 pcs 9. Screw 2*3 - 4 pcs 3. Rudder (vertical tail) - 1pc 10. Control horn - 4 pcs 4. Elevator (stabilizer) - 1pc 11. Extension arm - 4 pcs 5. Landing gear plus wheels 12. Pushrod connector - 4 pcs 6. Carbon rod wing spar - 1pc 13. Plywood servo mount - 4 pcs 7. Z-Bend 1.5mm* 200mm - 4pcs 14. Rubber band - 2 pcs 15. Fiberglass tail skid.
Product Specifications: Fuselage length: 1080mm (42.15 in.) Wingspan: 1096mm (43.1 in.) Flying Weight: 690 – 760 grams (with battery) Motor: Turnigy Aerodrive SK3 - 3530-1150kv Brushless Outrunner Motor or HobbyKing Donkey ST3007-1100kv Brushless Motor (Recommend) ESC: Aerostar 30A Electronic Speed Controller with 2A BEC (2~4S) (Recommend) Propeller: 10*4.7 SF or 11*4.7 SF (Recommend) Servo: 9-12 grams micro servo - 4 pcs (Recommend) Radio: 4 or more channels Battery: 11.
1 2 Fit the fiberglass servo extension arm onto the nylon servo arm with screws provided 3 4 5 6 We will make the right wing first. Insert the aileron servo and servo mount to the pre-cut servo slot. Ensure those servo wires are properly organised during the installation. Apply CA glue to the servo mount.
8 Cut a slot on the aileron strip which is perpendicular to the servo arm with a hobby knife as picture shown. Glue the control horn as shown. Attach the “Z-bend” pushrod to the control horn and lock it with the pushrod connector. 9 10 Trim the excess pushrod wire with a wire cutter. Then smooth the cut with a file. Please repeat the above steps for the left wing. 11 12 Install the elevator servo with the servo mount as shown.
13 14 Install rudder servo with servo mount on the rear part of the fuselage as shown. Cut a slot for the elevator control horn as shown . 15 16 Trail fit the elevator onto the fuselage. Ensure it is straight and level to the fuselage and main wing. Then apply CA glue to the joint between the elevator and fuselage. 17 Install “Z-bend” pushrod to the control horn and lock it with the push rod connector. Then apply CA glue to the control horn. 18 Tighten the grub screw and loctite it.
19 20 Glue the rudder in place as shown. Use the same technique as shown above to prepare the control horn installation on the rudder. 21 22 Apply CA glue to the rudder horn. Install “Z-bend” pushrod as shown and lock it with the pushrod connector. 23 24 8 Insert carbon wing spar to one of the wing panel. Then insert it to the wing mount on the fuselage and put the other wing panel on and make sure it is well balanced and true to the fuselage.
25 26 Install the landing gear on the gear mount. There are two ways to fix the wings onto the fuselage. 1. Connect the wings with two rubber bands as shown in picture #25. You can remove the wings during transportation and for easy storage. 2. Apply slow curing epoxy to the wing root, wing spar and bond both wings and fuselage together permanently for ultimate flying performance. 27 28 Install the brushless motor onto the motor mount and secure it with 4 tapping screws provided with the kit.
C of G: 110-130mm from wing leading edge. 110-130mm Travel Settings: Each Flight control must be set to its physical limits. This means as far as it will go, but no farther than it has to. You set this by selecting the servo, fully deflect the surface with the transmitter, then increase (or occasionally decrease) the percentage to where the flight surface will not travel any further. Then simply back off a click or two and you are done.
NOTE 11
NOTE 12
NOTE 13
Michael Wargo's quick aircraft setup guide 14
