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Introductions

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Building on engineering innovations seen in this popular jet model, ROCHOBBY(by FMS) has launched 

a brand new 70mm EDF Super Viper onto the market!

In terms of appearance, the Super Viper has a scaled navy blue color scheme with bright yellow wingtips, 

which highly distinguishes it for long distance viewing. The optimized fuselage shape decreases wind 

resistance. The button-type canopy design lets you latch the canopy so you will not lose the cockpit during 

extreme maneuvers.

In terms of performance, the Super Viper is equiped with a 70mm 12-blade Ducted Fan, innrunner 

KV1850, and a Predator 70A ESC, this powerful system, when coupled with a 6S battery, resembles a 

turbine engine sound.

This inexpensive fine trainer is excellent for edf jet beginners. To keep costs low, we offer the model as a 

standard PNP with options to add flap servos. 

Get yourself a Super Viper and bring new excitement to the flying field!

 

Key Features:

• High quality Predator 70A ESC, powerful KV1850 innrunner motor with the latest 70mm 12-blade EDF

• Screw-together construction

• Button type canopy hatch

• Pre-installed ball link style control horns provide precise surface control

• The finest Trainer EDF in the market

Introduction 

Contents of Kit 

Model Assembly    

Battery installation

Connectors  Diagram 

Get your model ready to fly 

Important ESC and model information

The transmitter and model setup 

Check the control throws 

Clevis Installation 

Control Horn and Servo Arm Settings 

Center of Gravity(CG) 

Before flying the model 

Flying Course

Troubleshooting 

Spare parts list content 

ESC instruction

Table of Contents

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Summary of Contents for 4251014771905

Page 1: ...REALISTIC RIGID RETRACTS INSTALLED STRONG DURABLE EPO STABLE SMOOTH FLYING PERFORMANCE FMSMODEL COM 70MM Super Viper...

Page 2: ......

Page 3: ...ny time the batteries begin to swell or balloon discontinue use immediately Always store the batteries at room temperature in a dry area to extend the life of the battery Always transport or temporari...

Page 4: ...trainer is excellent for edf jet beginners To keep costs low we offer the model as a standard PNP with options to add flap servos Get yourself a Super Viper and bring new excitement to the flying fie...

Page 5: ...local shop or email us support fmsmodel com Contents of Kit 4 Wingspan 1100mm 43 3in Overall Length 1025mm 40 5in Flying Weight Around 1795g 63 32oz Motor Size Brushless 2860 KV1850 Wing Load 93 5 g...

Page 6: ...the Y harnesses from main wing through the hole located in the bottom of the fuselage as shown fig1 3 Aligh the wing with the fuselage and secure into position using screws included as shown fig2 Mai...

Page 7: ...Connect the elevator servo connectors to the servo extensions in the fuselage 2 Install the horizontal tail in the rear of the fuselage Ensure the control horn faces down as shown fig3 3 Secure the ho...

Page 8: ...e rudder servo connectors to the servo extensions in the fuselage 2 Install the vertical tail into the slot in the fuselage fig5 3 Secure the vertical tail in place using the included screws fig6 Vert...

Page 9: ...ints with a knife as shown fig7 2 Take out the foam blocks from the flap servo slots and put the flap servos in fig8 3 Glue the control horns 4 Install the linkage rods fig9 fig8 Required Adhesives Fo...

Page 10: ...ttery fig 10 2 Slide the battery into the battery hatch with the power supply cable toward the rear end of the plane and the hook tape facing the bottom of the battery hatch Note You may need to reloc...

Page 11: ...o full throttle and plug in the motor battery The motor will beep one time Move the throttle stick to low throttle or the off position The motor is ready to run and the brake will be switched off Batt...

Page 12: ...ow setting for FMS MODEL are as follows dual rate setting 11 Tips On first flight fly the model in low rate The first time you use high rates be sure to fly at low to medium speeds High rate as listed...

Page 13: ...12 More control throw Less control throw Elevator Rudder Ailerons Horns Arms a b c d e f 1 2 3...

Page 14: ...1 The recommended Center of Gravity CG location for your model is 90 95mm from the leading edge of the main wing as shown with the battery pack installed Mark the location of the CG on top of the win...

Page 15: ...d battery into the fuselage Connect the battery and install the hatch Remember use care not to bump the throttle stick Otherwise the propeller fan will turn and possibly cause damage or injury Note Pl...

Page 16: ...ith a timer set the timer so you have enough flight time to make several landing approaches The model s three point landing gear allows the model to land on hard surfaces Align model directly into the...

Page 17: ...Trouble shooting 16...

Page 18: ...KP110 Landing Gear Cover ROCKP111 Linkage Rod ROCKP112 Control Horns ROCKP113 Wheel Set ROCKP114 Screw Set ROCKP115 Decal Sheet FMSRE040 EL Retract FMSRE038 EL Retract FMSDF12B70 70mm Ducted fan PRKV1...

Page 19: ...r Solder controller to the motor wires Solder appropriate connectors to the battery wires Insulate all solder connectors with heat shrink tubes Plug the JR connector into the receiver throttle channel...

Page 20: ...or the battery type triggers the ESC to automatically set the cutoff threshold to the factory default of 65 The cutoff threshold can then be subsequently altered through the Low Voltage protection fun...

Page 21: ...his is recommended for fixed wing models fitted with direct drive setups 7 Active RPM Control Heli Governor Mode RPM control off First range There will be a 5 second delay from start to full rpm but i...

Page 22: ...rking mode after powering up it indicates that you have not setup throttle calibration 1 Continuous beeping tone Indicates that throttle stick is not in the minimum position 2 Single beeping tone foll...

Page 23: ...its programming state The first set of tones denotes the number of cells in the LiPo pack connected to the ESC Three beeps indicates a 3 cell LiPo pack while 4 beeps indicates a 4 cell LiPo pack The s...

Page 24: ...ESC underwater while powered up Do fly at a designated flying site and abide by the rules and guidelines set by your flying club 23 Issue Possible Reason Action Motor doesn t work but there are audib...

Page 25: ...eck the placement of the ESC and the Receiver and check the route of the receiver s aerial and ESC cables to ensure there is adequate separa tion to prevent RF interference Install a ferrite ring on t...

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