FMS 1400MM T-28 Trojan V4

Product Overview

The FMS 1400MM T-28 Trojan V4 is a high-performance RC airplane featuring a lightweight EPO foam construction, upgraded 4258-KV650 motor, and an 80A ESC. It includes metal landing gears with shock absorption, digital metal gear servos, and a multi-connector system for easy assembly.

Technical Specifications

• Wing span: 1400mm
• Overall length: 1185mm
• Flying weight: ~2450g
• Motor: 4258-KV650
• ESC: 80A Brushless with 5A SBEC
• Recommended battery: Li-Po 14.8V 2600-3300mAh 25C

Safety Precautions

This is a sophisticated hobby product, not a toy. Operators must be at least 14 years old. Always operate in open areas away from people, traffic, and buildings. Handle Li-Po batteries with extreme caution: never leave them unattended while charging, use only compatible chargers, and store them in a fire-resistant container at room temperature.

Assembly

The assembly process involves installing the wing tubes and securing the main wing with brackets and screws. The horizontal and vertical stabilizers are attached to the fuselage using provided screws and linkage rods. Ensure all control surfaces are properly connected to the servos and that the propeller and spinner are securely installed.

Flight Preparation

Before the first flight, perform a range check and ensure the center of gravity (CG) is correctly balanced at 80-85mm from the leading edge of the main wing. Adjust the battery position to achieve the correct balance. Always verify that all control surfaces move in the correct direction using the transmitter.

Maintenance and Troubleshooting

Regularly check that all screws are tightened and that the propeller is secure. Repairs to the foam should be made using foam-safe adhesives. If the aircraft fails to respond or exhibits abnormal behavior, consult the troubleshooting section to check for loose connections, damaged components, or incorrect transmitter settings. The ESC can be programmed via the transmitter to adjust settings such as brake, battery type, and cutoff thresholds.