Do you have a question about the FMS J-3 Cub and is the answer not in the manual?
Essential safety guidelines for operating the model and handling components.
A note from FMS encouraging feedback and offering customer support.
Guide for balancing the model by adjusting motor battery position for optimal flight.
Routine checks for components and systems before and after flights.
Advice for the first flight, including trimming and altitude recommendations.
Recommendations for storing Li-Po batteries and performing foam repairs.
Details for contacting FMS customer support for assistance and spare parts.
Instructions and warnings for safely charging the Li-Po flight battery.
Critical warnings regarding Li-Po battery handling, charging, storage, and potential hazards.
Explains how to connect the ESC to the motor and battery pack.
Table detailing specifications for various ESC models, including current, voltage, and size.
Lists 10 user-programmable parameters for the ESC, including brake, battery type, and timing.
Explains specific setting options for parameters like low voltage cutoff and timing.
A table summarizing all programmable ESC settings and their options.
Step-by-step guide to calibrate the ESC's throttle range with the transmitter.
Procedure for starting the ESC correctly after initial setup.
Instructions on how to enter the ESC's programming mode.
Safety guidelines for using the ESC, including polarity and ventilation.
Addresses motor not working, servo issues, and incorrect alert tones.
Covers issues with the ESC not detecting the throttle signal or entering programming mode.
Discusses motor reverse rotation, overheating, and overload issues.