HS-S3 Electric Underwater Scooter – Vector Scooter

Vector Water Craft Mid-Range Performance Electric Diver Propulsion Vehicle

The HS-S3 Underwater Scooter is a powerful and highly versatile mid-range electric diver propulsion vehicle designed to deliver increased speed, extended endurance and refined handling for recreational divers, instructors and professional underwater operators. Positioned between compact entry models and long-range high-output scooters, the HS-S3 provides the ideal balance of performance, portability and reliability for users who require more capability without the size or complexity of extreme-duty units.

Engineered to extend dive range, reduce physical fatigue and enhance underwater safety, the HS-S3 transforms underwater mobility by allowing divers to travel further, work more efficiently and return with greater energy reserves. It is a professional-grade platform suitable for high-frequency recreational use as well as structured training, guided tours and light commercial operations.

Whether exploring expansive reef systems, supporting instructors during training sessions or conducting inspection and survey tasks, the HS-S3 delivers smooth propulsion, precise control and dependable construction in a platform that remains compact, transportable and easy to maintain.

Streamlined Hydrodynamic Design for Efficient Cruising

The HS-S3 has been developed around a refined hydrodynamic housing designed to minimise drag while maintaining excellent directional stability and thrust efficiency. The tapered nose cone and optimised intake geometry guide water smoothly into the propulsion duct, reducing turbulence and improving power conversion.

Carefully balanced internal mass placement ensures neutral trim and natural straight-line tracking, allowing the scooter to glide effortlessly through the water without constant wrist correction. This reduces diver workload, conserves battery energy and significantly improves comfort during extended dives. The compact profile allows confident navigation through reef corridors and wreck interiors while providing the internal volume necessary for a higher-capacity propulsion system.

High-Efficiency Electric Propulsion for Extended Range

At the heart of the HS-S3 is a sealed high-efficiency electric propulsion unit engineered specifically for underwater duty cycles. The motor delivers strong, continuous torque across the operating range, enabling relaxed long-distance cruising as well as responsive acceleration. Fully electric operation provides key advantages:

• Zero exhaust emissions
• No fuel odours or contamination
• Virtually silent propulsion
• Minimal vibration transmitted to the diver

This quiet performance preserves situational awareness, improves diver communication and allows close observation of marine life without disturbance.

Multi-Speed Electronic Control for Mission Flexibility

The HS-S3 is equipped with an intuitive multi-speed electronic throttle system that allows the diver to select precise thrust levels for changing underwater conditions:

• Low-speed settings: Delicate positioning for inspection work, buoyancy training and underwater photography.
• Mid-range speeds: Efficient cruising across expansive reef systems.
• High power modes: Rapid transits and assisted returns against current.

Progressive acceleration and deceleration eliminate sudden surges that could disrupt buoyancy or destabilise trim. The ergonomic trigger layout allows confident one-handed operation even with thick gloves.

Pressure-Rated Sealed Construction for Dependable Durability

The HS-S3 is built around a reinforced pressure-rated sealed housing designed to protect electronics and battery systems at professional recreational diving depths. Precision O-ring sealing, internal reinforcement ribs and corrosion-resistant materials ensure dependable performance in both saltwater and freshwater environments.

The enclosure resists deformation under pressure and provides excellent impact protection during rocky shore entries and repeated handling in fleet operations. All external fittings and fasteners are marine-grade and corrosion-proof, ensuring long service life under heavy utilisation.

Extended-Endurance Lithium Battery System

Power for the HS-S3 is supplied by a sealed high-capacity lithium battery pack engineered specifically for underwater propulsion applications. The battery enclosure is fully isolated from water ingress and protected by multi-layer electronic safety management systems.

The HS-S3 delivers practical extended runtime suitable for:

• Long reef and wreck exploration dives
• Multi-session training programs
• Guided resort and tour activities
• Inspection and support operations

Intelligent power management maintains consistent thrust output throughout the discharge cycle, ensuring predictable performance from full charge through to low-battery thresholds.

Ergonomic Handling and Neutral Buoyancy Balance

Operator comfort is a defining strength of the HS-S3. The sculpted dual-grip handle system provides a secure, fatigue-free hold while maintaining natural wrist alignment and relaxed arm posture during extended dives. The near-neutral buoyancy profile allows effortless hand-off, parking and hovering without the scooter sinking or floating aggressively.

Integrated Safety Architecture

Safety has been engineered into every aspect of the HS-S3 platform. The fully enclosed propulsion duct eliminates exposed propellers, protecting divers from injury and preventing entanglement with lines, kelp and debris. Continuous electronic monitoring supervises motor temperature, controller load, and battery voltage. If abnormal conditions occur, the system automatically limits output or initiates protective shutdown to protect components and ensure safe diver recovery.

Versatile Applications Across Recreation and Professional Use

• Recreational exploration: Extend dive range and reduce fatigue on long dives.
• Training and instruction: Ideal platform for navigation drills and buoyancy control exercises.
• Resort and guided tours: Quiet, reliable scooters for premium underwater experiences.
• Inspection and survey work: Stable propulsion for hull inspection and infrastructure assessments.
• Search and support operations: Controlled sweep and positioning assistance for diver teams.

Transport, Deployment and Low-Maintenance Ownership

Despite its increased performance capability, the HS-S3 remains compact and highly portable, fitting easily into standard dive transport cases. Quick-access charging ports and sealed compartments simplify turnaround between dives. Routine maintenance is limited to rinse-down, seal inspection and battery charging, eliminating the complexity and servicing burden associated with traditional systems.

Technical Overview – HS-S3

• Model: HS-S3 Underwater Scooter
• Propulsion: High-efficiency electric enclosed ducted propulsor
• Control: Multi-speed electronic trigger throttle
• Housing: Reinforced pressure-rated sealed composite construction
• Buoyancy: Near-neutral, precision-balanced design
• Battery system: High-capacity sealed marine-grade lithium pack
• Depth rating: Professional recreational diving class
• Charging: Shore-power compatible fast-charge system

The Perfect Balance of Performance and Portability

The HS-S3 Underwater Scooter represents the ideal middle ground in professional diver propulsion. By combining higher thrust, extended endurance, refined hydrodynamics and durable construction in a compact format, it delivers a platform capable of supporting both serious recreational diving and structured professional operations. The HS-S3 is a versatile professional underwater mobility system designed to expand what divers can safely and confidently achieve beneath the surface.