Aqua Marina TOMAHAWK AIR-K High Pressure Speed Inflatable Kayak

The Aqua Marina Tomahawk AIR-K High-Pressure Inflatable Kayak is a speed-focused drop-stitch kayak available in solo 375cm and tandem 440cm configurations. Its narrow profile, 7cm drop-stitch hull and deck, moulded bow and stern keels and 10 PSI operating pressure provide a rigid platform designed for tracking, glide and responsive handling.

Choose the AIR-K 375 for one paddler, a 16.6kg net weight and a maximum payload of 128kg, or the AIR-K 440 for two paddlers, a 20.3kg net weight and a maximum payload of 210kg. Both models include the appropriate number of adjustable high-back seats, two fins, a Liquid Air V1 double-action pump and a CIRCUPACK transport backpack.

Product Identification

• Brand: Aqua Marina
• Product range: Tomahawk
• Product name: Aqua Marina Tomahawk AIR-K High-Pressure Inflatable Kayak
• Product category: High-pressure inflatable speed kayak
• Available models: AIR-K 375 and AIR-K 440
• Available capacities: One person or two person
• Solo dimensions: 375 × 72cm / 12ft 4in × 28in
• Tandem dimensions: 440 × 78cm / 14ft 5in × 31in
• Maximum payloads: 128kg or 210kg
• Net weights: 16.6kg or 20.3kg
• Maximum air pressure: 10 PSI
• Drop-stitch thickness: 7cm / 2.8in
• Air chambers: Three
• Drain valves: Two
• Hull construction: Drop Stitch Light Technology
• Tracking system: Moulded keels beneath the bow and stern
• Splash protection: Deck Shield and extended splash guards
• Quantity supplied: One kayak package in the selected configuration

What Is the Aqua Marina Tomahawk AIR-K Used For?

The Tomahawk AIR-K is designed for paddlers who want the rigidity of high-pressure drop-stitch construction with the transport and storage advantages of an inflatable kayak.

• Solo recreational touring
• Tandem day trips
• Longer-distance paddling
• Calm lakes and reservoirs
• Canals and inland waterways
• Calm or gently flowing rivers
• Sheltered estuaries
• Suitable sheltered coastal paddling
• Fitness and speed-focused recreational paddling
• Carrying touring equipment within the selected model's payload

Its narrow width and moulded keel system make the AIR-K more speed- and tracking-focused than a wide, low-pressure leisure inflatable.

Which Tomahawk AIR-K Model Should I Choose?

Choose the AIR-K 375 when:

• The kayak will normally be used by one paddler.
• A maximum payload of 128kg is sufficient.
• The narrower 72cm solo hull is preferred.
• A lower 16.6kg net weight is easier to transport.
• Compact storage and vehicle space are priorities.
• One adjustable seat and footrest are required.

Choose the AIR-K 440 when:

• Two paddlers need to travel together.
• A maximum payload of 210kg is required.
• Additional cockpit and luggage space are needed.
• A longer waterline is preferred for tracking and glide.
• Two adjustable seats and footrests are required.
• The 20.3kg net weight remains practical for transport.

Maximum payload includes every paddler and all clothing, food, water, safety equipment and luggage carried aboard.

What Is Included?

AIR-K 375 – 1 Person:

• One Aqua Marina Tomahawk AIR-K 375 inflatable kayak
• One premium adjustable high-back kayak seat
• One adjustable footrest
• Two removable kayak fins
• One Aqua Marina Liquid Air V1 double-action pump
• One CIRCUPACK zip transport backpack
• Factory-fitted Deck Shield
• Two integrated self-bailing drain valves

AIR-K 440 – 2 Person:

• One Aqua Marina Tomahawk AIR-K 440 inflatable kayak
• Two premium adjustable high-back kayak seats
• Two adjustable footrests
• Two removable kayak fins
• One Aqua Marina Liquid Air V1 double-action pump
• One CIRCUPACK zip transport backpack
• Factory-fitted Deck Shield
• Two integrated self-bailing drain valves

What Is Not Included?

• Kayak paddle or paddles
• Buoyancy aids or personal flotation devices
• Dry bags
• Waterproof phone case
• Additional seats
• Additional footrests
• Additional fins
• Electric inflation pump
• Personal rescue or signalling equipment
• Vehicle roof rack or tie-down equipment

Paddles are not listed in Aqua Marina's standard AIR-K package contents and should be ordered separately unless the selected retail package specifically states otherwise.

What Is Drop Stitch Light Technology?

The Tomahawk AIR-K is constructed using high-pressure drop-stitch material across the hull and inflatable deck.

Thousands of internal fibres connect the outer surfaces of each chamber. When inflated to the specified pressure, these fibres prevent the chambers from expanding into a rounded shape and allow them to retain a flatter, more rigid profile.

• Greater rigidity than a conventional low-pressure inflatable kayak
• Reduced hull and floor flex
• Improved transfer of paddle effort
• A firmer seating and foot-bracing surface
• More responsive handling
• Better tracking and glide
• Compact deflated storage compared with a rigid kayak

What Is the Benefit of the Moulded Keels?

Moulded keel sections are positioned beneath the bow and stern.

• Help the bow and stern follow a straighter course
• Reduce sideways movement between paddle strokes
• Improve directional tracking
• Support efficient forward glide
• Help the kayak retain momentum
• Improve water flow around the ends of the hull

The removable fins provide additional tracking support in suitable water depth.

What Is the Deck Shield?

The Deck Shield is a raised splash-control section designed to reduce water flowing backwards into the open cockpit.

• Deflects spray away from the seating area
• Reduces splash reaching the paddler
• Improves comfort on longer trips
• Helps protect equipment carried inside the kayak
• Retains easy access to the open cockpit

The AIR-K also incorporates splash guards at the bow and stern. The Deck Shield reduces splash but does not create a sealed or watertight cockpit.

What Do the Three Air Chambers Mean?

Both AIR-K variants use three independently inflated air chambers.

• Check all three chambers for correct pressure.
• Confirm that every valve cap is secure.
• Inspect the chambers for damage or leakage.
• Inflate the sections in the sequence stated in the instructions.
• Never exceed 10 PSI.
• Recheck air pressure when the ambient temperature changes significantly.

How Do the Self-Bailing Drain Valves Work?

The AIR-K has two integrated self-bailing drain valves for removing water from the cockpit.

• Open the valves when operating conditions require drainage.
• Close them for dry flat-water use where instructed.
• Keep the openings clear of sand, weed and debris.
• Check that the caps and valve components are correctly positioned.
• Inspect the valves before every launch.

How Does the Adjustable Seat System Work?

• High backrest
• Cushioned support
• Adjustable attachment straps
• Multiple storage pockets
• Adjustable seat position
• Compatibility with the adjustable footrest system

Adjust the seat so the paddler can maintain an upright posture while keeping a slight bend in the knees. On the tandem model, position both seats so the loaded kayak sits level in the water.

What Is the Difference Between Net Weight and Maximum Payload?

Net weight is the published weight of the kayak itself:

• AIR-K 375: 16.6kg
• AIR-K 440: 20.3kg

Maximum payload is the total weight carried aboard, including paddlers, clothing, seats, food, water, dry bags, safety equipment and all other cargo.

How Should the Tomahawk AIR-K Be Set Up?

• Unfold the kayak on a clean surface free from sharp objects.
• Inspect the hull, deck, seams and valves.
• Arrange the chambers in their correct positions.
• Inflate the chambers in the sequence stated in the Aqua Marina instructions.
• Use the supplied Liquid Air V1 pump.
• Inflate evenly and monitor the pressure.
• Do not exceed 10 PSI.
• Close every valve cap securely.
• Attach the correct number of seats.
• Adjust the backrest straps.
• Fit and adjust the footrest or footrests.
• Install both removable fins where water depth permits.
• Check the drain-valve configuration.
• Secure all carried equipment.
• Obtain the required kayak paddle or paddles separately.

How Should the Kayak Be Loaded?

• Keep heavier equipment low and near the centre.
• Distribute paddlers and luggage evenly.
• Do not overload the bow or stern.
• Secure every loose item.
• Keep the cockpit clear enough for safe entry and exit.
• Do not obstruct the drain valves.
• Protect the hull from sharp equipment.
• Include all cargo in the payload calculation.
• Do not exceed the stated passenger or payload limit.

Safety and Use

• Wear a correctly fitted buoyancy aid or personal flotation device.
• Check the weather, wind, current, tide and water conditions.
• Use the kayak only in conditions suited to the paddlers' ability.
• Remain within the passenger and payload limits.
• Tell someone the planned route and expected return time.
• Carry appropriate communication and rescue equipment.
• Keep clear of powered vessels and marked navigation channels.
• Keep children and inexperienced paddlers under appropriate supervision.
• Do not paddle while affected by alcohol or drugs.
• Follow local access and navigation rules.
• Do not rely on the kayak as a life-saving appliance.

Care and Maintenance

• Rinse the kayak with fresh water after use in salt or dirty water.
• Remove sand, weed and debris from the cockpit and valves.
• Rinse the fins, seats, footrests and pump fittings.
• Allow the kayak and accessories to dry completely.
• Inspect the drop-stitch surfaces for cuts, abrasion or punctures.
• Check the valves and seams for leakage.
• Inspect the moulded keels for impact damage.
• Remove the fins before folding.
• Release the air completely before packing.
• Avoid repeatedly creating sharp folds in the same place.
• Store the kayak in its CIRCUPACK bag.
• Keep it in a cool, dry and ventilated location.
• Protect it from prolonged sunlight, frost and excessive heat.

Key Features

• Combined solo and tandem Tomahawk AIR-K range
• AIR-K 375 one-person model
• AIR-K 440 two-person model
• Maximum payloads of 128kg or 210kg
• High-pressure Drop Stitch Light Technology
• 7cm drop-stitch hull and deck
• 10 PSI maximum operating pressure
• Three separate air chambers
• Narrow speed-kayak profile
• Moulded bow and stern keels
• Deck Shield splash protection
• Bow and stern splash guards
• Two self-bailing drain valves
• Adjustable footrests
• Premium high-back seats with cushioning and storage pockets
• Two removable kayak fins
• Liquid Air V1 double-action pump included
• CIRCUPACK transport backpack included
• Paddles not listed as included

Frequently Asked Questions

What is the difference between the AIR-K 375 and AIR-K 440?
The AIR-K 375 is a 375cm one-person kayak with a 128kg maximum payload. The AIR-K 440 is a 440cm two-person kayak with a 210kg maximum payload.

How many seats are included?
The AIR-K 375 includes one seat. The AIR-K 440 includes two seats.

Are paddles included?
Paddles are not listed in the standard package contents and should be ordered separately unless the selected retail package states otherwise.

Are the fins included?
Yes. Both variants include two removable kayak fins.

What pressure should the kayak be inflated to?
The published maximum air pressure is 10 PSI.

How thick is the drop-stitch construction?
The hull and inflatable deck use 7cm / 2.8in drop-stitch construction.

What are the moulded keels used for?
They help improve tracking and water-flow efficiency beneath the bow and stern.

Does the AIR-K have drain valves?
Yes. Both versions have two self-bailing drain valves.

Does maximum payload include luggage?
Yes. The maximum payload includes every paddler and all carried equipment.

Can the AIR-K 440 be paddled by one person?
It may be paddled solo when the seat and load are positioned correctly, but it remains longer, wider and heavier than the dedicated AIR-K 375 solo model.

Is the AIR-K suitable for beginners?
An appropriately sized beginner may use it in calm, sheltered conditions after suitable instruction. Its narrow, speed-focused design may feel less initially stable than a wider recreational kayak.

Is the cockpit waterproof?
No. The Deck Shield and splash guards reduce water entering the cockpit but do not create a sealed enclosure.

Specifications

Select the Tomahawk AIR-K according to passenger count, total carried load, hull dimensions and transport weight. Maximum payload includes all paddlers and equipment. Kayak paddles and buoyancy aids are not listed as included.

Select the Tomahawk AIR-K according to passenger count, total carried load, hull dimensions and transport weight. Maximum payload includes all paddlers and equipment. Kayak paddles and buoyancy aids are not listed as included.