Silent innovation
The Naval Architecture of Silence
Our highly efficient pure-electric drives and masterful European / Asian craftsmanship are redefining the limits of maritime luxury—completely emission-free and silent.
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Gottsegen 31 Pure Electric Tender Specification & Configuration
Overview & Dimensions
* Length Overall (LOA): 9.45 m (31 ft)
* Beam: 2.95 m
* Draft: 0.65 m (Drive down) / 0.42 m (Drive up)
* Displacement (Dry): 3,400 kg
* Design Category: CE Category B / Off-Shore Tender (10 Passengers)
* Hull Type: Deep-V twin-stepped hydro-efficient carbon-composite hull optimized for minimal drag at planing speeds.
Propulsion: Twin German-Engineered 300 hp Electric Outboards
* Outboard Motors: Twin High-Voltage German Electric Outboard Drives (300 hp / 222 kW continuous rating each; combined peak 600 kW / ~800 hp).
* Operating Voltage: High-Voltage Architecture (800V DC System).
* Torque Output: Instantaneous torque delivery of ~1,100 Nm combined.
* Cooling System: Closed-loop dual liquid-cooling system with integrated heat exchangers to handle high continuous discharge.
* Steering & Control: Integrated digital Fly-by-Wire throttle with joysticks, dynamic positioning system (DPS), and electronic trim control.
* Estimated Performance:
* Cruising Speed: 24–28 knots
* Top Speed: 50+ knots
Battery Storage & System Connectivity
1. Battery Architecture
* Battery Pack: High-energy-density Lithium Nickel Manganese Cobalt (NMC) or advanced liquid-cooled LFP battery bank built in modular liquid-cooled aluminum enclosures.
* Capacity: Dual redundant 800V battery system with combined 252 kWh capacity ( expandable up to 300 kWh).
* Location: Mounted low in the keel along the center of gravity for maximum dynamic stability and reduced roll.
2. Power Distribution & Connectivity
* High-Voltage Bus (800V DC): Dual-channel high-voltage distribution box with galvanically isolated lines feeding each outboard independently.
* Redundancy & Fail-Safe: Cross-bus connectivity allowing either battery bank to power both motors in emergency "limp home" modes.
* Battery Management System (BMS): Dual redundant master CAN-bus BMS monitoring individual cell temperatures, state of charge (SoC), voltage balancing, and thermal run-away protection.
* Cooling Loops: Integrated glycol-water thermal management loop tied directly into the boat's raw water heat exchange system.
3. Charging Capabilities
* AC Charging: Onboard dual 22 kW AC chargers (44 kW total) for overnight marina charging via standard 3-phase shore power connections.
* DC Fast Charging (CCS2 Combo): High-speed DC Supercharging up to 200 kW continuous (0–80% charge in ~45 minutes).
* Solar Integration (Optional): Bimini-integrated ultra-light solar array (1.5 kWp) dedicated to 24V house loads and battery maintenance topping.
Onboard Electronics & Helm Integration
* Helm Displays: Twin 16-inch touchscreens running an integrated Glass Cockpit UI displaying real-time power consumption, range radius rings, motor diagnostics, and battery health.
* House Power (12V / 24V / 230V): Integrated 3 kW DC-DC converter stepping down high-voltage power to run navigation lights, refrigeration, sound systems, and hydraulic actuators without needing an auxiliary generator.
The Evoy Storm 300+ HP electric outboard is currently the flagship high-output electric outboard motor on the market. Below are its core technical specifications and performance metrics:
Evoy Storm 300+ HP Engine Specifications
1. Performance & Electrical Architecture
* Continuous Power: 222 kW (~300 hp)
* Peak Power: Up to 450 kW (~600 hp) for rapid acceleration onto plane
* System Voltage: 730V – 800V DC high-voltage system
* Nominal Torque: 500 Nm
* Peak Torque: ~750 Nm
* Nominal RPM: 4,200 RPM
* Maximum RPM: 5,800 – 6,000 RPM
2. Physical Dimensions & Weight
* Motor Dry Weight: ~265 kg – 278 kg (584–612 lbs)
* Total Assembly Weight: ~385 kg (including mounting kit, rig, and accessories)
* Ingress Protection Rating: IP66 (waterproof/dustproof enclosure designed for salt and fresh water environments)
* Cooling: Integrated closed-loop liquid thermal management system
Battery Integration & Charging Support
* Battery Packs: Powered by high-voltage liquid-cooled battery modules (63 kWh or 69 kWh units, typically paired in dual or quad configurations for high-power setups).
* AC Charging: Standard onboard AC charging setup with options scalable up to 40 kW AC.
* DC Supercharging: Fully compatible with CCS DC fast-charging up to 200 kW continuous (allowing 20% to 80% charge in ~30–45 minutes).
* Control Unit: Driven by Evoy’s E-Brain™ system, providing real-time telemetry, remote monitoring via CAN-bus, and over-the-air (OTA) updates.
Pure Electric Drive
Efficiency without compromise
Driven by state-of-the-art battery technology and twin 300 hp Evoy's Storm outboard engines, the Gottsegen 31 Tender combines exhilarating high-speed performance with zero-emission silence.
Accumulation
Generation
Propulsion
Whisper-quiet battery cells
Smart engines
Hydrodynamic propulsion
Next-generation lithium-ion batteries power the electric motors for hours of completely silent cruising.
Highly efficient units switch on imperceptibly only when needed to charge the batteries while driving.
Specially designed propellers minimize cavitation and vibrations for an incredibly smooth ride.
Ready for some noble navigation?
Glide silently through the future of the seas aboard our exclusive silent tender.