T-Motor U8 II Pro 100KV 12S Efficiency UAV Motor

The T-Motor U8 II Pro 100KV belongs to the U Efficiency line, built for long-endurance multirotors on 12S power: mapping, survey, patrol and delivery airframes where flight time matters more than punch. On a 28 × 9.2 inch prop it produces up to 9.1 kg of thrust, a 36:1 thrust-to-weight ratio.

Key features

• IP56 sealing keeps out particles of 0.7 mm and larger as well as rain, for all-weather flying
• Centrifugal fan and cooling fins, with high-conductivity materials that T-Motor credits with 17% better cooling
• Curved arc magnets with tight tolerances for an efficient magnetic circuit
• Steel shaft, 7075 aluminium housing, high-temperature enamelled wire and imported 6901ZZ bearings

Specifications

• KV: 100
• Configuration: 36N42P
• Motor dimensions: Ø87.3 × 29.55 mm
• Weight: 287 g with leads
• Rated voltage: 12S LiPo
• Internal resistance: 134–141 mΩ
• Idle current: 1.0 A at 24 V
• Peak current (180 s): 31 A
• Max thrust: 9.1 kg on a G28 × 9.2 prop
• Protection: IP56
• Recommended props: G27 × 8.8 or G28 × 9.2 inch carbon fibre
• Recommended ESC: T-Motor Flame 60A 12S V2.0

For the longest flight times, size the airframe so each motor hovers at roughly half its 9.1 kg maximum thrust.