ProDesign L-39 Albatros 68mm EDF Assembly Instructions Manual Download Page 7

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Test run the EDF unit before installation. Check and mark the ESC connector to ensure air is

blown backward.

Try inserting the EDF unit with the backend first. Apply glue/tape to both end of the EDF

housing. Make perfect sealing to enhance the EDF efficiency. Assemble the ducted fan unit

and anchor the ESC.

Use transparent tape to attach the light EDF cover.

EDF cover

Ducted Fan Unit

Summary of Contents for L-39 Albatros 68mm EDF

Page 1: ...ted fan Specifications are subject to change without notice Warning This model is not a toy and please read the manual carefully before construction and operating this model aircraft Specification Fly...

Page 2: ...s 1x 500 700W 3600 4400kv brushless motors 4x Servo extension wires 3x 9g mini servo Lithium polymer 3 4 cell 2200 3200mAh 20 45c 5 or 30 minute epoxy CA Glue Velcro Locktite threadlock Drill drill bi...

Page 3: ...y hardware bags screw horn linkage connector M3 nut steering arm 3mm collar mounting plate magnet Find a pre cut slot at the underside of the wing and cut open the film Insert the aileron servo and pa...

Page 4: ...bon rod Adjust and orient the joiner such that both wings are in perfect position 5mm holes can be drilled on the sides of the fuselage to pass the wires of the aileron servos Drill two 3mm holes on t...

Page 5: ...to attach the tank to the main wing Use clamps tape to secure the position Detach the aileron from the horizontal plate Bent the U shaped wire with a collar fir inside Pass the U shaped wire through t...

Page 6: ...e wing Ensure it is also perpendicular to the vertical stabilizer You may use tape to run across the vertical stabilizer to avoid any position change before the epoxy cured The above diagram is for il...

Page 7: ...is blown backward Try inserting the EDF unit with the backend first Apply glue tape to both end of the EDF housing Make perfect sealing to enhance the EDF efficiency Assemble the ducted fan unit and a...

Page 8: ...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 Elevator throw is 8 mm up 8mm down Use 50 exponential Low rate 6m...

Page 9: ...e the block strongly attached to the fuselage Attach the Landing gears as above On the other hand one can simple install an electronic retractable gear as an option Assemble the front gear mount as sh...

Page 10: ...The ChangeSun electronic retract can be drop fit into the precut space You can use Y cable to connect all 3 electronic retracts Set the ATV of the corresponding channel Gear Ch to maximum in both dire...

Page 11: ...c retract can be installed with ease You may need some balsa wood to secure the steering servo in place The idea C G position is 6 cm behind the leading edge measured at where the wing meets the fusel...

Page 12: ...This is to ensure the power system and the BEC are reliable All EDF should be run in to test for vibrations and loosen shaft Check all electronic equipment Range check the radio equipment Test all con...