Inflatable Catamaran Buyer’s Guide: Is the WaveRunner 380 Right for You?

An inflatable catamaran is a portable twin-hull boat with buoyancy spread to either side of the deck. That wide footprint helps it resist roll when you move about at rest. It can be a useful platform for fishing, family days and beach launches; it is not automatically the right choice for every sea state or every person lifting a boat into a car.

The Aerowave WaveRunner 380 Series 3 makes those trade-offs concrete. This is a guide to the questions you should ask before choosing a 3.8 m inflatable catamaran, not a claim that one model is perfect for everybody. For a bigger enclosed-bow boat, read our Viper 400 catamaran guide.

What changes when the hull is a catamaran?

Two inflatable hulls spread buoyancy apart. When one passenger shifts position, that wide stance helps limit roll compared with a narrower single-hull design. It is the reason many buyers shortlist a cat for fishing, getting aboard from the water or spending time stopped at anchor. The open space and shallow draft can also make a beach launch practical. But a shallow draft is not permission to run across rocks or ignore tides.

A twin hull is not a Deep-V monohull. If your priorities are long runs into steep chop or the softest possible ride while moving, compare hull shapes in the conditions you really use. Wind, loading, speed and skipper decisions matter; no inflatable catamaran guarantees a dry ride. If you mostly fish at rest, prize stability and want to pack the boat away, the cat design earns a closer look.

The WaveRunner 380 in numbers

The WaveRunner 380 Series 3 is 3.80 m long and 1.55 m wide. Its listed boat weight is 47 kg, with a listed load rating of 650 kg, six-person capacity (five recommended) and a 20 hp maximum outboard rating. Ratings are ceilings, not instructions to load to the limit: leave room for people, fuel, safety gear and sensible handling. The product listing gives a packed size of approximately 130 × 75 × 40 cm across two bags for hull and floor/accessories. Measure your boot opening as well as the space inside the car; think about whether you can lift each load, not just whether the boat fits.

The listed transom height is 380 mm. Confirm short-shaft motor compatibility, total engine weight and any mounting questions before you order. Hidea motors and trailers are Australian-only products; international customers can still enquire about the boat, without assuming a motor can be supplied overseas.

Read the fabric specification, not just the word “premium”

WaveRunner uses German-made 1500 GSM / 1.2 mm VALMEX® 7321 Heavy Plus hull fabric with thermo-welded seams. GSM is material mass per square metre; millimetres tell you thickness. Ask for both when comparing fabrics. That specification is a tangible part of the value: it is a more useful answer to “why does it cost more?” than an unsupported promise that no other boat will wear out.

The WaveRunner carries a 5-year limited hull warranty, not the Viper’s extended 5–7 year coverage. Read the full warranty terms before buying. With proper care, the stated premium-fabric lifespan is 10–12 years; actual service life depends on storage, use and maintenance. Rinse and dry the boat, keep it away from prolonged UV when stored and inspect fittings regularly. No fabric specification replaces responsible care.

Floor pressure, setup and what is in the package

The WaveRunner uses a high-pressure 8–10 PSI AirDeck. The included lithium pump gets the floor to approximately 2–2.5 PSI; switch to the supplied manual pump for the final pressure. An underinflated floor will not feel like the firm platform you expected. Check the pressure guidance before your first outing and make time for a practice setup at home.

The WaveRunner package lists LockNLoad launch wheels and a grey/black Bimini as standard. Look at the actual WaveRunner product listing for the latest configuration, what is included and the current price. Ask for a written quote itemising the boat, accessories, any optional extras, destination and delivered price; do not compare a full package with a hull-only advertisement.

Which inflatable catamaran should you shortlist?

Start with how you launch. If you must lift the boat solo into a vehicle, the weight and two packed loads may decide the purchase faster than the hull length. If a team will set up on a beach, ask how the fitted wheels, shade and deck layout work for your crew. For longer runs, consider your usual chop, forecast limits and fuel planning rather than buying by maximum horsepower alone.

Then compare sizes honestly. A Viper 365 Open Bow is another portable cat to measure for your car and launch routine. The Viper 400 Sovereign offers a larger enclosed-bow layout and an optional aluminium floorboard/inflatable-keel configuration, but the listed bare boat weight is 66 kg. The WaveRunner 380 sits between those lengths with its own 47 kg listed weight and standard Bimini and wheel kit. These are different layouts and loads, not a universal best-to-worst ranking.

Finally, understand delivery and payment. Australian delivery is quoted as a landed price with duty and clearance covered. Overseas delivery terms vary by destination; get the destination-specific landed-cost position in writing rather than assuming every country is duty-paid. A 50% deposit starts a custom build; once building starts the deposit is non-refundable. The remaining balance is only due when the boat is finished and has passed quality checks. Get the exact configuration, delivery terms and payment stages in writing before paying.

For a side-by-side look at the ranges, compare inflatable catamarans. If you already know your car dimensions, crew size, launch location and usual waters, contact the team for a specific WaveRunner quote rather than guessing from a photo.