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Red brushless motor with silver shaft, cylindrical metal body, mounting holes visible

Hetai Tech

Hetai Tech BA4023 KV850/KV1050 Brushless Motor 3-6S Red accessory

SKU CH-18Y4-W778E

Red brushless motor with 850KV or 1050KV options runs on 3-6S LiPo packs for compatible Volantexrc airframes

  • TypeAxles
  • Delivers up to 1820 g thrust at 22.2 V for powerful climbs
  • Achieves 6.7 g/W efficiency at 11.1 V for longer flight times
  • Weighs 115 g to keep airframe light and responsive
  • Compatible with Volantexrc 757-V2, 742-5, 759-2, 759-3, 757-9, 756-1
  • Operates on 3-6S LiPo packs for flexible power setups

Motor compatibility and purpose

This brushless motor fits the Volantexrc 757-V2, 742-5, 759-2, 759-3, 757-9 and 756-1 airframes. It is offered with a choice of 850KV or 1050KV ratings and operates on 3-6S LiPo packs. The red anodised housing weighs 115g and is intended for pilots replacing or upgrading the powerplant on those specific models.

Thermals noise and power draw

Performance tables show the 850KV version drawing 16.5A at 14.8V for 244W and 5.9g/W efficiency, rising to 19.2A at 22.2V for 426W and 4.3g/W. The 1050KV variant pulls 15.3A at 11.1V yielding 170W at 6.7g/W, and 20.5A at 14.8V for 303W at 5.8g/W. Current, voltage and prop load determine heat and acoustic output in flight.

Package contents and practical effect

The box contains a single BA4023 motor unit. No mounting hardware, propeller adapters, electronic speed controller or wiring loom are included, so the builder must supply those separately. Selecting the appropriate KV rating matches the motor to the chosen propeller and battery combination for the listed airframes.

Highlights

  • Delivers up to 1820 g thrust at 22.2 V for powerful climbs
  • Achieves 6.7 g/W efficiency at 11.1 V for longer flight times
  • Weighs 115 g to keep airframe light and responsive
  • Compatible with Volantexrc 757-V2, 742-5, 759-2, 759-3, 757-9, 756-1
  • Operates on 3-6S LiPo packs for flexible power setups

Specifications

TypeAxles
ModelRC Airplane

Questions about this item

How do I mount the BA4023 motor on a Volantexrc 757-V2 airframe and which step is often missed?

Fasten the motor to the firewall using the supplied mounting screws, then connect the three bullet connectors to the ESC matching the wire colours; the step often missed is securing the prop adapter with the retaining nut before flight.

What maintenance will the BA4023 brushless motor need after extended use?

Periodically check the shaft for side play, clean dust from the bell and stator with compressed air, and re-lubricate the bearings with light oil if they become noisy; no brushes require replacement.

At what current does the 850KV version on 6S hit its practical thermal limit during sustained climbs?

The performance table shows 19.2 A at 22.2 V producing 426 W with 4.3 g/W efficiency; running continuously above this load will cause temperature to rise fastest.

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