The Castle Hydra Cobra 5 HV is a next-generation marine ESC designed for RC hobby boats up to 50 inches. Built on the same proven technology as the Cobra 5 HV surface ESC and re-engineered for water, it delivers uncompromising 12S/50.4V power, data-rich performance monitoring, and bulletproof protection.
Based on our proven Cobra 5 architecture, this marine-focused ESC features a custom water-cooled heatsink for efficient thermal management and an aluminum top plate with dual anodized water fittings (.17" OD, 10-32 UNF threads). The ESC is housed in a rugged CNC aluminum case and potted in waterproof epoxy to protect the electronics and includes an upgraded current-sensing and thermal protection system actively mitigates the risk of failure in aggressive or high-load setups.
Features:
- 32-Bit processing power for smoother motor control and improved response time.
- Enhanced Data Logging includes: Double the maximum sample frequency of older generations. / 8x increased logging time of older generations. / ESC electrical motor timing data.
- Acceleration data via onboard accelerometer.
- Looping feature prevents interruptions in data log recording.
- Additional tuning features include: "Limp Mode" - makes return to shore easier when low voltage cutoff is activated.
- Highly adjustable internal BEC (5.0V - 8.5V adjustable in 0.1V increments)
- Access to tuning options and firmware updates for free with Castle Link V4 USB programmer included with purchase.
- Upgraded current-sensing and thermal protection system actively mitigates the risk of failure in aggressive or high-load setups.
- CRYO-DRIVE Technology minimizes the amount of time the ESC's electrical components spend generating heat, resulting in improved thermal performance during partial throttle operation where most driving occurs
- Wirelessly optimize your setup with the convenience of the B-Link2 Bluetooth Interface and Castle Link 2 app for Android or iOS.
- ESC is housed in a rugged CNC aluminum case and potted in waterproof epoxy to protect the electronics and promote efficient heat transfer.
- Machined water-cooled heatsink with 0.17" water fittings.
- Auxiliary wire functionality for "on-the-fly" adjustments using your transmitter
- Audible alerts for easy diagnosis of common issues such as motor-over temperature and low-voltage cutoff
- Convenient transmitter programming for six common adjustable settings including cutoff voltage and drag brake
Specifications:
- Application: Designed for use in RC Hobby boats up to 50"
- Input Voltage ESC: MIN: 6S LiPo, MAX: 12S LiPo (50.4V)
- Size: 4.7" x 1.5" x 2.6" (120mm x 37.2mm x 67mm)
- Weight: 18.1oz (513g)
- BEC Voltage: 5.0V - 8.0V adjustable in 0.1V increments; (20A Peak); default 5.5V
- Wire and Connectors: 8.0mm female bullets; matching 8.0mm male bullets required
- Water Cooling Fittings: Two .17" fittings included. Uses 10-32 UNF threads
- Running Modes: SmartSense and Sensorless brushless
- Items Needed for Operation: A high current connector designed for 150+ amps continuous, such as Castle 6.5mm polarized or CC Bullet 8.0MM, QS8 8mm Anti Spark, or QS10 10mm Anti Spark as well as 8mm male bullets for the motor connections.
- Installation: Mounting holes located in bottom of aluminum case for installation into vehicle, template available.
- Programming: Access to tuning options and firmware updates for free with Castle Link V4 USB adapter included with purchase (Requires Windows 10 or higher) or the Castle Link 2 App and a B-Link 2 Bluetooth Interface.
- Tech Tips: If replacing the water-cooling fittings, it is recommended to use Loctite 545 (or similar) on the threads. This will ensure a watertight, 25+ PSI strong seal.