81-08 G1 Module

Product Description:

The 81-08 G1 Module is designed for commercial and defense UAS propulsion. The module is a tightly integrated motor and 60A, 12S ESC with an embedded position sensor. With position sensing and advanced calibration and control algorithms, Vertiq has created the highest performance servo propulsion solution in its class.

Kv Options: 85, 150

Legacy Kv Options: 240 (see 81-08 G2 Module page for more current offerings)

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Module Details

81-08 G1 Module

- Microcontroller: 32-Bit ARM Cortex MCU @ 72 MHZ
- Module Dimensions: 87.1 mm diameter, 35.32 mm height
- Stator Dimensions: 81 mm diameter, 8 mm height
- Weight: 287 g
- Voltage (Max # of Lipo Cells): 50.4 V (12S)
- Continuous Motor Current (In Airflow): 32.5 A
- Continuous Torque (In Airflow): 2.3 Nm
- Lifetime: 2,000 hrs
Performance & Control
- Velocity control with tunable PIDs & feed forward
- Field Estimated Control: Best-in-class efficiency
- 3D reversible, no delay while crossing zero
- Industry-leading rise & response times
- Regenerative & active braking
- Precise propeller positioning
- Active freewheeling
- Fast FET switching, use of gate drivers
System Integration
- Motor with built-In ESC & position sensor
- Communication protocols: DroneCAN, DShot, Standard PWM, Serial, & more
- Compatible flight controllers: Ardupilot, PX4 & Betaflight
Safety & Reliability
- Over-current, over-voltage, & over-temperature protection
- Access to standard & custom telemetry
- Motor health monitoring
- Safe arming procedure
- Manual, Tutorials, & Communication APIs
- 81-08 85Kv G1 Datasheet
- 81-08 150Kv G1 Datasheet
- 81-08 240Kv G1 Datasheet (Legacy)
- CAD Model (available upon request)
- 2D Drawings (see datasheet)
This section provides downloads for the latest and previous firmwares for the 81-08 G1 modules. The previous releases are provided to support customers who are not yet ready to upgrade their firmware. We recommend using the latest firmware release. Details on updating your firmware can be found in our documentation.
Current Production Speed Firmware Releases (v0.1.2):
- This release is shipping on new modules by default.
- This release includes a small change to v0.1.1 to accommodate internal manufacturing process changes. It does not affect normal customer operation or features, it only matters when resetting a module to factory defaults and only affects modules manufactured during or after September 2025. See the blog post below for more information
- Information on Changes in Release v0.1.2
- 81-08 85Kv G1 Speed Firmware v0.1.2
- 81-08 150Kv G1 Speed Firmware v0.1.2
- 81-08 240Kv G1 Speed Firmware v0.1.2
Previous Speed Firmware Releases:
- v0.1.1
  - This release is a small bugfix release to address a bug in v0.1.0. The blog post linked below provides information on the impact of the bug. Most customers will not be notably impacted by this bug, see the blog post for more information
  - Information on Changes in Release v0.1.1
  - 81-08 85Kv G1 Speed Firmware v0.1.1
  - 81-08 150Kv G1 Speed Firmware v0.1.1
  - 81-08 240Kv G1 speed Firmware v0.1.1
- v0.1.0
- v0.0.9
Latest Servo Firmware Releases:

Advantages

Vertiq’s integrated motor and ESC design with position sensing gives it significant advantages over standard UAS propulsion systems. With rotor position information, tight motor-ESC pairing, and sophisticated motor control software, Vertiq optimizes propulsion performance and reliability.