FLYFANS Mig-25 Russian Twin 64mm EDF Jet PNP Version Instructions

: June 9, 2024
: FLYFANS

Table of Contents

SPECIFICATIONS
CONTENTS OF KIT
Assembly
Flight Setup
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FLYFANS Mig-25 Russian Twin 64mm EDF Jet PNP Version Instructions

SPECIFICATIONS

Wingspan: 912mm
Overall length: 1430mm
Dry weight: 1510g
Flying weight: 2670g (Full loading)
Wing loading: 98.6g/dm²

ELECTRONIC

Power System: Twin 6S 64mm EDF Units
ESC: Twin 40A – 60A ESC
Servos: 9g servos x 7, 17g servos x 2
Battery: 22.2V 3300-5200mAh Lipo
Radio: 7 Channel Transmitter and Receiver

RECOMMENDED BATTERY

Range of 3300-5200mAh 22.2V 6S High performace Lipo. 6S 4200mAh is the best fit.

KIT TYPE

KIT	KIT + Servos	PNP
40g Rectract	KIT	KIT
Shock Absorber CNC	9g Metal Servo x 7 (Installed)	9g Metal Servo x 7

(Installed)
Landing Gear| 17g Metal Servo x 2 (Installed)| 17g Metal Servo x 2 (Installed)
4 x flight lights| | 40A ESC x 2 (Installed) 2840/2300KV 64mm12 blades EDF x 2 (Installed)

CONTENTS OF KIT

Fuselage*1
Left Wing*1
Right Wing*1
Vertical Stabilizer L*1
Vertical Stabilizer R*1
Horizontal Stabilizer L*1
Horizontal Stabilizer R*1
Missile Set
Fuel Tank*1
Nose Cone*1
Wing Tube*1
Elevator Pushrods*2
Aileron Pushrods*2
Flap Pushrods*2
Rudder Pushrods*2
Front Wheel Pushrods*1
Velcro*1
Screws for wings*4(Silver)
Screws for EDF*4(Black)

Overview

Assembly

Model Assembly (KIT only)

Rudder Servo

Set 9g servo to neutral point and screw on Servo arm. Glue the servo into the slot on the Rudder.
We suggest the cable length is 10cm.
Ajust pushrods length then link the Servo arm and Control horn. Model Assembly (KIT only)
Same procedure on the orther Rudder.

Flap and Aileron Servo

Set 9g servos to neutral point and screw on Servo arm. Glue servos into the slot.
Make sure the Flap servo set to correct start point and correct flap moving direction.
Ajust pushrods length then link the Servo arm and Control horn.
Make sure the control surface level to the Wing edge.
Same procedure with the orther Wing.
Then align all cables along the cable slot then insert into the plastic part at the leading edge of the main wing.
Keep all unnecessary cables inside the plastic part.

Front Wheel Servo

Open Battery hatch then connect to RX, Lipo and drop landing Gear out.
Set 9g servo to neutral point and screw on Servo arm.
Glue the servo into the slot.
Ajust pushrods length then link the Servo arm and Front Wheel Control Horn.
Then glue the landing gear cover on.

EDF & ESC

Take EDF cover and ESC cover out.
Glue Horizontal Stabilizer Servo into the slot.
Require 1 normal and 1 reverse 17g Servo.
Organise servo cables along the slot.
Install EDFs and fixed with screws.
Install ESCs into the ESC compartment and connect ESCs to EDFs. Do a test to make sure the power system working properly.

Elevator

Install Elevator on both sides.
Tighten the screws with 1.5mm hexagon key.
Ajust pushrods length then link the Servo arm and Elevator Control Horn.

ESC & EDF Covers

Put ESC cover back.
Secure EDF cover with screws.

Vertical Stabilizer

Connect Rudder servo cable to extension plug.
Glue both Vertical Stabilizers onto fuselage.

Main Wing

Insert carbon spar into fuselage.
Then install both wings and secure with screws.

Receiver

Connect servo cables with your receiver in the order shown.
Then keep Receiver and Cables in the Receiver compartment.

Pitot tube

Install Pitot tube onto Nose cone.

Missiles and Oil Tank

. Slide the missiles and oil tank into the rails.
Then the assembly job is done.

Flight Setup

Check the C.G.

The Center of Gravity (CG) location is 125mm from the leading edge of the main wing (as shown) with the battery pack installed.
The center of gravity can be adjusted by moving the battery forward or aft.

Diminsion

Control throws

We recommand dual rate setting for better flying experience.
When taking off and landing, Elevator and Aileron in low rate will make smooth move;
When taxing on ground, Rudder in high rate will get smaller turning diameter;
When flying in air, low rate will make flight more stable. High rate is only for extreme maneuvering.

| High Rate| Low Rate
---|---|---
Elevator| 100%| 80%
Aileron| 105%| 80%
Rudder| 100%| 75%
Flap| 100%| 70%

Tips

Tail heavy will get Mig-25 stall and spin at low speed. So when balancing your model, adjust the battery as necessary so the model is level or slightly nose down. If the tail is heavy in the first flight, pleaes throttle up to keep speed and avoid stall.
Mig-25 can lift off in short distance, so no need of flaps when taking off. But Flaps can reduce the landing speed and distance. No necessary of Elev / Flap compensation.