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High performance Fiberglass F22 for twin 68mm electric ducted fan
• Flying Weight
• Wing span
• Length
• Rotor diameter
Warning !
This model is not a toy and please read the manual carefully before construction and
operating this model aircraft.
F22 Twin 68mm EDF
Specification
~3700g
862mm.
1184mm.
68mm
Specifications are subject to change without notice
1
C2
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Summary of Contents for ProDesign Twin
- Page 1 F22 Twin 68mm EDF High performance Fiberglass F22 for twin 68mm electric ducted fan Specification • Flying Weight ~3700g • Wing span 862mm. • Length 1184mm. • Rotor diameter 68mm Specifications are subject to change without notice Warning ! This model is not a toy and please read the manual carefully before construction and...
- Page 2 Equipment and parts needed Radio system for 4 channels or above 2x Electronic speed controllers for brushless motor 2x 70mm fan-units 2x 700W size brushless motors 4x Servo extension wires 2x Metal gear standard size servo, for elevator ...
- Page 3 Inside the Box Fuselage, Main wing, Exit ducting sheet, elevator , EDF cover, vertical fin, wing joiner, landing gear and wheel, canopy, hardware bags ( screw, horn, linkage connector, M3 nut, steering arm, 3mm collar, mounting plate, magnet), Elevator control hub . Waterslide décor. Aileron Servo Find a pre-cut slot at the underside of the wing and cut open the film.
- Page 4 with a receiver/ transmitter. Install the servo with the balsa wood block provided. Mark the horn insertion and cut a 5mm slot in the aileron and epoxy the control horn. Use CA to connect the aileron to the wing. Connect the 9.5cm linkage wire to the servo horn. Main Wing Do not glue the wing at this point.
- Page 5 Elevator Control Hub The full motion elevator needs attention when assemble. The pro-design kit includes a elevator hub that renders the elevator movement precise and maintenance free. Use coarse sandpaper to remove excessive paint on the elevator control rod. Make a slot on the control rod with dremel . Try assembling the collar. Make sure the collar with the M3 screw and control horn can lock the elevator rod without slop.
- Page 6 Elevator Servos Locktite the collar control arm through a hole drilled on the fuselage. Connect the 15cm control link to the servo control arm. Install standard size metal gear servo. Connect the linkage. Install the linkage connector and center the servo horn. Exit Ducting Make the exit ducting with the temple provided.
- Page 7 Ducted Fan Unit Attach double sided adhersive tape around both end of the EDF housing. This is to make a better seal to enhance the EDF efficiency. Assemble the ducted fan unit and anchor the ESC. Check the inflow duct clearance. Test run the EDF and ensure air is blow backward. Check for any excessive vibration.
- Page 8 Main Landing gear Main landing gear assembly. Connect the wheel collar. Use 2mm screw to connect to the fuselage retractable gear base. This design allows you to upgrade to retractable gears without any modification. Front Landing gear Assemble the front gear as shown. Use a 3mm collar at the base. Tighten the steering control arm.
- Page 9 Decals Realistic water decal is supplied with the ProDesign kit. Cut the water decal into reasonable pieces and soak in water for 2 seconds. Use your finger to slide the decal in position. Use tissue paper to remove excessive water.
- Page 10 Cockpit Trim the canopy and glue inside the fiberglass frame. Drill 4mm hole at front of the cockpit. Epoxy the 3cm FG rod in the front. Glue the magnets to the canopy. Control Throws The neutral position of the elevator should be the same horizontal level with main wing. The above photo shows the down elevator stick/ pitch up at low rate.
- Page 11 C.G. setting The idea C.G. position is 9cm behind the leading edge measured at where the wing meets the fuselage. Adjust the battery position to obtain the correct C.G. Check the C.G. before flying.
- Page 12 At the first flight, it is prudent to check the C.G. In runway takeoff, slight finger pressure at the trailing edge of the elevator should be able to pitch up the aircraft. Enjoy! Take pictures and video of your scale looking, high performance ProDesign fighter!
- Page 13 Ducting Template...
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