FMS 1500mm Maule User Manual

Product Overview

The FMS 1500mm Maule is a high-performance RC aircraft designed to replicate the low-speed handling and short take-off and landing (STOL) capabilities of the real Maule. Constructed from durable EPO foam, it features functional flaps, operational LED lighting, and a plug-in two-piece wing design. The model includes both a standard landing gear set and an optional float set for water operations.

Technical Specifications

• Wingspan: 1500mm (59in)
• Overall Length: 1100mm (43.3in)
• Flying Weight: ~1871g
• Motor: 3541-KV1050
• ESC: 40A
• Servos: 9g x 7
• Recommended Battery: 11.1V 2200-3200mAh 50C

Safety Precautions

Warning: This is a sophisticated hobby product, not a toy. It must be operated with caution and common sense. Always maintain a safe distance from people, traffic, and buildings. Never operate with low transmitter batteries or in populated areas. Handle Li-Po batteries with extreme care; never charge unattended, never use a Ni-Mh charger, and never discharge below 3V per cell.

Assembly and Setup

The model features a glue-free assembly process. Key steps include installing the landing gear into the fuselage slots, attaching the main wings using the wing spar and securing them with screws, and installing the tail assembly. Ensure all servo and LED connectors are firmly seated. The center of gravity (CG) should be 60-70mm from the leading edge of the main wing.

Flight Preparation

Before the first flight, perform a thorough range check. Ensure all control surfaces move in the correct direction and that the transmitter sticks are in the neutral position. Use the recommended control throws for the first flight to ensure stable handling. Always monitor flight time using a timer to prevent unexpected power loss.

Maintenance and Troubleshooting

Regularly check that all screws are tightened and that the spinner is secure. If the aircraft fails to respond, check the ESC arming status and transmitter settings. If the motor exhibits extra noise or vibration, inspect the propeller and motor mount for damage. For persistent issues, refer to the troubleshooting table in the manual to identify potential causes such as loose connections or damaged components.

Electronic Speed Controller (ESC)

The included ESC supports programmable features such as brake type, motor timing, and low-voltage cutoff. Programming can be accessed via the transmitter by following the specific tone sequences outlined in the manual. Always ensure the throttle is in the lowest position before connecting the battery to arm the system.