H9 Electric Underwater Scooter – Vector Sub Jet Pro

Vector Water Craft Ultra-Long-Range Professional Electric Diver Propulsion Vehicle

The H9 Underwater Scooter is the flagship endurance model in the Vector Water Craft underwater mobility range, engineered for elite recreational divers, instructors and professional operators who require maximum range, sustained cruising speed and uncompromising reliability during long and demanding underwater missions. Designed as a premium long-distance platform, the H9 delivers exceptional thrust efficiency, outstanding battery endurance and refined control in a robust professional-grade configuration.

Positioned at the very top of the Vector scooter range, the H9 is purpose-built for extended reef transits, deep wreck exploration, endurance training programs, professional inspection work and structured commercial diving operations where reliability and range are mission-critical. This is not a recreational novelty — it is a serious underwater propulsion system designed to dramatically extend operational reach, reduce diver fatigue and significantly enhance safety margins on long dives.

Whether supporting kilometre-long reef traverses, multi-stage technical training, offshore inspection work or premium guided exploration experiences, the H9 delivers smooth continuous propulsion, precise control and dependable long-duration performance in a platform designed for the most demanding underwater applications.

Ultra-efficient hydrodynamic body for extreme range

The H9 features a long-profile hydrodynamic housing designed specifically to minimise drag while maximising straight-line stability and propulsion efficiency. The extended nose cone and carefully shaped intake geometry guide water smoothly into the propulsion duct, improving energy conversion and reducing turbulence around the diver.

Balanced internal mass distribution ensures neutral trim and exceptional tracking stability with minimal corrective input. This allows the scooter to glide naturally through the water, reducing wrist strain, conserving battery energy and dramatically improving comfort during long-distance runs.

The elongated hull profile allows the H9 to accommodate a high-capacity propulsion system and extended-range battery pack while maintaining excellent manoeuvrability in reef corridors, wreck interiors and confined operational spaces.

This refined hydrodynamic architecture is the foundation of the H9’s defining advantage — exceptional underwater range with controlled high-speed efficiency.

High-capacity electric propulsion for sustained performance

At the heart of the H9 is a high-capacity sealed electric propulsion system engineered for continuous long-range underwater operation. The motor delivers powerful, stable torque across the full operating range, providing strong acceleration, efficient cruising thrust and precise low-speed control.

Instant torque response allows divers to reposition quickly, maintain station in current and execute controlled manoeuvres around inspection targets, mooring lines and delicate reef structures. Unlike compressed-air propulsion systems, the electric drive provides smooth uninterrupted thrust with no pulsing, pressure loss or mechanical vibration.

Fully electric propulsion provides decisive advantages:

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

This quiet performance improves situational awareness, preserves marine environments and allows close observation of marine life and underwater infrastructure without disturbance.

Advanced multi-mode electronic speed management

The H9 is equipped with an advanced multi-stage electronic throttle and propulsion management system designed to provide precise control across a wide performance envelope.

Low-speed modes allow delicate positioning for inspection, photography and buoyancy training. Mid-range settings support efficient long-distance cruising, while high-power modes enable rapid transits, strong assisted returns against current and fast repositioning between work zones.

Progressive acceleration and deceleration eliminate sudden surges that could destabilise buoyancy or disrupt trim. The ergonomic trigger layout allows confident one-handed operation even when wearing thick gloves or operating in cold or low-visibility water.

This sophisticated control system makes the H9 ideally suited for:

• Advanced recreational and technical divers
• Long-range instructor and endurance training programs
• Professional inspection and infrastructure survey teams
• Search, sweep and underwater support operations

Pressure-rated professional construction for extreme durability

The H9 is built around a reinforced pressure-rated sealed composite housing designed to protect electronics and battery systems at advanced recreational and light technical diving depths. Precision O-ring sealing, heavy-duty internal reinforcement and corrosion-resistant materials ensure dependable operation in both saltwater and freshwater environments.

The casing resists deformation under pressure and provides exceptional impact protection during rocky entries, wreck penetration and frequent handling in fleet operations. All external fittings and fasteners are marine-grade and corrosion-proof, ensuring long service life under repeated immersion and heavy utilisation.

This professional construction standard allows the H9 to operate reliably in demanding training, resort and commercial environments where equipment failure is unacceptable.

Ultra-long-duration lithium battery system

Power for the H9 is supplied by a high-capacity sealed lithium battery system engineered specifically for extended underwater propulsion duty cycles. The battery enclosure is fully isolated from water ingress and protected by multi-layer electronic management and safety systems.

The H9 delivers exceptional endurance suitable for:

• Long reef and wreck transits
• Multi-stage technical training dives
• Extended inspection and infrastructure surveys
• Premium guided long-distance resort excursions

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

Fast-charge capability allows rapid turnaround between dives and efficient scheduling in fleet and commercial operations.

Advanced protection circuits guard against overheating, over-current and low-voltage conditions, extending battery life and maximising diver safety.

Ergonomic control and neutral buoyancy balance

Operator comfort and control are defining strengths of the H9. The sculpted dual-grip handle system provides a secure, fatigue-free hold and promotes natural wrist alignment during extended missions.

Trigger placement enables fine speed modulation with minimal finger movement, allowing precise control without disturbing buoyancy or body position.

The near-neutral buoyancy profile allows effortless hand-off, parking and hovering. Carefully tuned trim balance maintains a stable horizontal attitude, improving hydrodynamic efficiency and reducing shoulder and forearm fatigue during long operating periods.

Integrated safety and monitoring architecture

Safety is engineered into every layer of the H9 platform. The fully enclosed propulsion duct eliminates exposed propellers, preventing injury and reducing the risk of entanglement with lines, kelp and debris.

Continuous electronic monitoring supervises:

• Motor temperature
• Controller load
• Battery voltage and discharge rate

If abnormal conditions occur, the system automatically limits output or initiates protective shutdown to prevent damage and ensure safe diver recovery.
High-visibility exterior detailing improves underwater recognition, while reinforced nose protection guards against accidental contact with reef, wreck and infrastructure surfaces.

Applications across elite recreational and professional diving

The H9 has been developed as a true flagship multi-role underwater propulsion platform:

• Long-range exploration diving – Cover very large reef systems and deep wreck complexes with reduced fatigue and maximum reach.
• Technical and endurance training – Ideal platform for propulsion endurance, navigation and instructor programs.
• Resort premium experiences – High-end scooter for specialty long-distance underwater tours.
• Inspection and survey operations – Stable, powerful propulsion for hull inspection, marina surveys and underwater infrastructure assessment.
• Search and underwater support – Efficient long-range sweep and positioning assistance for professional operations.

Transport, deployment and low-maintenance ownership

Despite its flagship performance capability, the H9 remains practical and transportable, fitting into professional dive transport cases and equipment racks.

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 servicing burden associated with compressed-air and petrol-based propulsion systems.

This low-maintenance profile makes the H9 especially attractive for fleet operators managing premium training and commercial dive programs.

Technical overview – H9

• Model: H9 Underwater Scooter
• Propulsion: High-capacity electric enclosed ducted propulsor
• Control: Advanced multi-stage electronic trigger throttle
• Housing: Reinforced pressure-rated sealed composite construction
• Buoyancy: Near-neutral, precision-balanced design
• Battery system: Ultra-high-capacity sealed marine-grade lithium pack
• Runtime: Ultra-long-range endurance (varies by speed and load)
• Depth rating: Advanced recreational / professional class
• Charging: Shore-power compatible fast-charge system

The ultimate endurance platform in underwater mobility

The H9 Underwater Scooter represents the pinnacle of long-range electric diver propulsion within the Vector Water Craft range. By combining exceptional endurance, high cruising efficiency, refined hydrodynamics and professional-grade construction, it delivers a platform capable of supporting the longest and most demanding underwater missions.

For elite divers, it unlocks unprecedented range and exploration freedom.
For instructors and professional operators, it provides a dependable, ultra-long-duration propulsion system that integrates seamlessly into advanced training and operational workflows.

The H9 is not simply a powerful scooter — it is the ultimate long-range professional underwater mobility platform.