Skyhawk 155A SBEC ESC 3-8S Electronic Speed Controller For Drone
The ZTW Skyhawk 155A tops the 3-8S Skyhawk line, built for large fixed-wing UAVs and heavy-lift multirotor platforms before stepping up to the 6-14S HV models. Same 171g housing as the 125A, with more continuous current for demanding missions.
ZTW Skyhawk 155A 3-8S SBEC Brushless ESC for Fixed-Wing UAV VTOL RC Helicopter
Tops the 3-8S Skyhawk Line
The 155A is the highest-current option in the 3-8S Skyhawk range before stepping up to the 6-14S HV models — the choice for large fixed-wing UAVs and heavy-lift multirotor platforms that need more continuous power without moving to a higher-voltage battery pack.
155A Continuous / 170A Burst Current
Running at the top of its voltage bracket, the 155A still delivers meaningful burst headroom for hard throttle and payload-driven load changes on large platforms under sustained high load and long mission times.
Same Compact Footprint as the 125A
Housed in the same 171g, 87×40×32mm frame as the 125A, the 155A gives builders more current in an already-proven ESC bay — no redesign needed to move up the power range for a higher-performance platform.
High-Efficiency Thermal Dissipation Structure
Side vents paired with a dedicated airflow duct push cooling air into the ESC's middle layer, not just the surface — addressing the heat buildup that fan-only designs often miss on long, high-power missions.
Constant-Speed Governing for Heavy-Lift Stability
The advanced speed-governing algorithm keeps propeller RPM stable as payload changes, a meaningful advantage for heavy-lift multirotor platforms and large fixed-wing UAVs flying long, variable-load missions.
10A Adjustable SBEC
Switchable 6.0V/7.4V/8.4V output at up to 10A reliably powers a flight controller and full servo or actuator set on large platforms without needing a separate UBEC.
Complete Protection and Telemetry
Start-up, over-temperature, phase-loss, signal-loss, low-voltage, and over-current protection are standard, with real-time current, voltage, RPM, and status data available via the LCD card or Bluetooth app.


Technical Specifications
| Specifications | Skyhawk 35A SBEC | Skyhawk 65A SBEC | Skyhawk 85A SBEC | Skyhawk 125A SBEC | Skyhawk 155A SBEC | Skyhawk 130A HV SBEC | Skyhawk 160A HV SBEC |
|---|---|---|---|---|---|---|---|
| Continuous Current | 35A | 65A | 85A | 125A | 155A | 130A | 160A |
| Burst Current | 55A | 85A | 130A | 140A | 170A | 150A | 180A |
| Input Voltage | 3-6S LiPo | 3-6S LiPo | 3-6S LiPo | 3-8S LiPo | 3-8S LiPo | 6-14S LiPo | 6-14S LiPo |
| BEC Output | 6V-12V Adj. / 8A | 6V-12V Adj. / 10A | 6V-12V Adj. / 10A | 6.0/7.4/8.4V Adj. / 10A | 6.0/7.4/8.4V Adj. / 10A | 6.0/7.4/8.4V Adj. / 10A | 6.0/7.4/8.4V Adj. / 10A |
| CPU Frequency | 32-bit / 170MHz | 32-bit / 170MHz | 32-bit / 170MHz | 32-bit / 170MHz | 32-bit / 170MHz | 32-bit / 170MHz | 32-bit / 170MHz |
| Programming | LCD Card G2 / iOS & Android App | LCD Card G2 / iOS & Android App | LCD Card G2 / iOS & Android App | LCD Card G2 / iOS & Android App | LCD Card G2 / iOS & Android App | LCD Card G2 / iOS & Android App | LCD Card G2 / iOS & Android App |
| Telemetry | Supported | Supported | Supported | Supported | Supported | Supported | Supported |
| Governor Mode | Supported | Supported | Supported | Supported | Supported | Supported | Supported |
| Firmware Upgrade | Supported | Supported | Supported | Supported | Supported | Supported | Supported |
| Anti-Ignition | No | No | No | No | No | Yes | Yes |
| Power Wire | 14AWG | 14AWG | 12AWG | 10AWG | 10AWG | 10AWG | 10AWG |
| Motor Wire | 16AWG | 14AWG | 12AWG | 10AWG | 10AWG | 10AWG | 10AWG |
| Battery Plug | XT60 (Amass) | XT60 (Amass) | EC5 | EC5 | EC5 | EC5 | EC5 |
| Motor Bullet | 3.5mm | 3.5mm | 4.0mm | 4.0mm | 4.0mm | 5.5mm | 5.5mm |
| Size (L×W×H) | 48×25×16mm | 60×36×19mm | 71×36×37mm | 92×43×37mm | 92×43×37mm | 96×51×38mm | 96×51×38mm |
| Weight | 38g | 63g | 109g | 177g | 177g | 204g | 214g |
| Typical Application | 250-300 Class Heli | 450/450L Class Heli; 50 Class Sport Plane | 420-500 Class Heli; 70 Class 3D/EDF Plane | 500-550 Class Heli; 70-90 Class 3D Plane | 550-580 Class Heli | 550-600 Class Heli; 90-140 Class F3A/3D Plane | 550-600 Class Heli; 90-140 Class F3A/3D Plane |