T-Motor A8 115KV Modular Propulsion System Combo Kit (12-14S)

The T-Motor A8 is an integrated propulsion module for medium-sized agricultural multirotors. Each unit combines a 115KV motor, a 14S FOC ESC and an MF3119P 31-inch polymer folding propeller, so it clamps onto a 40 mm carbon arm tube ready to fly on 12–14S LiPo. A spray drone built on A8 modules needs only the frame, battery, flight controller and spray system added around them.

Key features

• 5–7 kg rated thrust per module and up to 18 kg maximum, at 8.9 g/W when lifting 6 kg
• Built-in 14S FOC ESC with 100 A peak capacity, controlled by PWM or CAN (DroneCAN, UAVCAN, Cube CAN)
• IPX6 protection against the spray, dust and rain of field work
• Pre-wired 12 AWG power leads and a 5-pin Teflon signal lead, both 1100 mm long, to reach a central power board without extensions
• Offered in CW and CCW versions to complete quad, hexa and octo layouts

Specifications

• Motor: A8, 115KV, 81 × 20 mm stator
• ESC: 14S FOC, 100 A peak (short duration, at or below 60 °C), no BEC
• Propeller: MF3119P polymer folding, 31 in (784 mm)
• Recommended battery: 12–14S LiPo
• Max voltage: 61 V
• Arm tube: 40 mm
• Rated thrust: 5–7 kg
• Max thrust: 18 kg
• Efficiency: 8.9 g/W at 6 kg thrust
• Throttle range: 1100–1940 µs (fixed)
• Weight: 1290 g ±2% including wires and propeller
• Protection: IPX6
• Wiring: 12 AWG power, 5-pin Teflon signal, 1100 mm
• Operating temperature: -20 °C to 55 °C

Carbon arm tubes are not included, so order 40 mm tubes to suit your frame. Rated thrust is each module's efficient working band: add it up across the arms to check a layout against your loaded take-off weight, and split the modules evenly between CW and CCW.