Page 3
WARNING WARNING: Read the ENTIRE instruction manual to become familiar with the features of the product before operating. Failure to operate the product correctly can result in damage to the product,personal property and cause serious injury. This is a sophisticated hobby product and NOT a toy. It must be operated with caution and common sense and failure to do so could result in injury or damage to the product or other property.
Introduction The FMS 90mm Viper is an upgrade from the best-selling 70mm No matter whether you have collected Vipers before, this newly Viper, designed to provide the look and performance of a jet launched FMS 90mm Viper EDF is very worth looking forward fighter with the stability of a low-wing sport aircraft, so that more to.
Model assembly Horizontal stabilizer installation 1.Attach the horizontal stabilizer to the fuselage as shown. 2.Insert the included two screws (HKM 3.0*10) into the circular aluminum part. Do not lock the screws. And then put the aluminum part into the slot shown in the figure. 3.Lock the horizontal stabilizer to fuselage by tightening the screws on the circular aluminum part.
Model assembly Main wing installation 1.Slide the wing spars into the fuselage as shown. 2.Install the left and right wing halves over the wing spars and into the wing slots. Be sure the connectors on both sides are attached precisely and firmly. 3.Secure the left and right wings to the fuselage using four screws included (HKM 3.0*10) 4.Attach the winglet to the corresponding slot on main wing, then slide toward the rear of the fuselage to lock in place.
Battery installation 1.Pull back on the latch and remove the battery hatch. 2.Apply the hook tape to the cable end of the battery. 3.Slide the full charged battery into the battery compartment with the power supply cable toward the rear end of the plane. Note: The center of gravity can be adjusted by moving the battery forward or aft.Having the correct center of gravity is critical to achieving proper flight characteristics.
Transmitter and model setup Before getting started, bind your receiver with your transmitter. Bank left Please refer to your transmitter manual for proper operation. CAUTION: To prevent personal injury, DO NOT install the propeller assembly onto the motor shaft while testing the control surfaces.
Clevis installation 1.Pull the tube from the clevis to the linkage. 2.Carefully spread the clevis, then insert the clevis pin into the desired hole in the control horn. 3.Move the tube to hold the clevis on the control horn. Control horn and servo arm settings More control throw Horns Arms...
Before flying the model Flying course Find a suitable flying site Take off While applying power, slowly steer to keep the model straight. Find a flying site clear of buildings, trees, power lines and The model should accelerate quickly. As the model gains flight other obstructions.
Trouble shooting Problem Possible Cause Solution Aircraft will not respond to -Lower throttle stick and throttle trim to lowest settings. -ESC is not armed. the throttlebut responds to -Reverse throttle channel on transmitter. -Throttle channel is reversed. other controls. -Damaged spinner, propeller, -Replace damaged parts.
Page 12
User Manual of Brushless Speed Controller Thanks for purchasing our Electronic Speed Controller (ESC). High power system for RC model is very dangerous, please read this manual carefully. In that we have no control over the correct use, installation, application, or maintenance of our products,no liability shall be assumed nor accepted for any damages, losses or costs resulting from the use of the product.
User Manual of Brushless Speed Controller Begin To Use Your New ESC IMPORTANT! Because different transmitter has different throttle range, please calibrate throttle range before flying. Throttle range setting (Throttle range should be reset whenever a new transmitter is being used) 1.Switch on the transmi t ter, move throttle stick to the top position.
Page 14
Program the ESC with your transmitter (4 Steps) Note: Please make sure the throttle curve is set to 0 when the throttle stick is at bottom position and 100% for the top position. NO.1 Enter program mode 1.Switch on transmitter, move throttle stick to top position, connect the battery pack to ESC 2.Wait for 2 seconds, the motor should emit special tone like "beep-beep-"...
Need help?
Do you have a question about the FMS137 and is the answer not in the manual?
Questions and answers