Pulled the kids on a tube all day. Heaps of room and the 4-stroke pushed it along nicely.

Aerowave Viper 400 Open Bow — Sports Package
Open-bow Viper 400 tuned for performance, fishing and weekenders.
5.0from 6 verified owner reviewsCharged in USD — the price you see is the price your card is charged. No conversion markup from us.
Unmatched 7-year hull warranty
The toughest inflatable boat guarantee in Australia. Five years standard, plus extended Years 6–7 hull cover on the Viper Series — on both the 1.2 mm VALMEX® Heavy Plus hull and the Orca Hypalon hull upgrade.
Why 1.2 mm VALMEX® matters
Every inflatable looks the same in a photo. The difference is the hull wall — and you only feel it the day something goes wrong.
1.2 mm against 0.9 mm is a third more fabric in every tube wall — the part that meets mooring poles, submerged branches, boat ramps, gravel and roof-rack straps.
Australian UV attacks the coating first. A thicker coating layer means the reinforcing scrim stays protected for years longer.
Thermo-welded seams fuse through the coating. More coating means a deeper, stronger weld and far more resistance to peel.
The Viper hull carries 5 years standard plus extended Years 6–7 cover. We only offer that on the 1.2 mm hull.
Service life figures are based on Australian UV exposure with normal seasonal use and correct storage. Both fabrics are premium German VALMEX®-grade material — the Viper simply runs the heavier 1500 GSM / 1.2 mm spec.
Typical imports publish 12 months, if anything at all.
More prop in the water — less ventilation and cavitation in chop.
Express air freight to United States included. Local duty & tax payable on arrival.
Look how easy it packs into the back of a Mazda CX-5.
Drop the two split rear seats and the whole rig slides straight in — boat, high-pressure Air Deck floor, both aluminium bench seats, the oars, the under-seat bag, the Bimini (pulled apart and packed flat), the 22 PSI lithium pump, a small scud-type anchor and accessories, plus the outboard, fuel tank and life jackets. No trailer, no boat ramp queue. Pull up, carry it down, and you're on the water.
The bag pictured has an actual AeroCat 360 packed inside it, with the high-pressure Air Deck floor added. Our boat bags take everything up to a Viper 430.
- · Hull, Air Deck floor, 2× aluminium seats and oars all in the one bag
- · Under-seat bag, dismantled Bimini, 22 PSI lithium pump and scud anchor alongside
- · Fits a mid-size SUV boot with the rear seats folded
- · Garage-friendly storage — no trailer parking

The story behind the build
Aerowave Viper 400 Open Bow — 4.0m Sports Package
The 4.0m open-bow Viper — our biggest packable catamaran and the best-selling boat in the Aerowave range. Real family boat, real fishing platform, real coastal weekender — and still packs into a car boot.
Built on the same 1.2mm German VALMEX® 7321 Heavy Plus commercial-grade fabric as our flagship Sovereign.
Built for
- Australian families who want the biggest packable catamaran we build
- Fishos, crabbers and coastal weekenders on moderate water
- Yacht owners who need a serious tender that doubles as a stand-alone day-boat
- Buyers upsizing from a 3.65m who want the extra length, load and stability
Why this boat
- 1.2mm German VALMEX® 7321 Heavy Plus PVC
- Thermo-welded seams, not glued — proven in Australian heat
- Full 4.0m twin-hull deck — dry, stable ride with 15–30HP outboards
- 8–10 PSI high-pressure air deck — rigid, packable, no scratched gelcoat
- Over-pressure safety valves on every chamber
- CE certified to ISO 6185-3 and EU Directive 2013/53/EU
- Full Bimini sun top included in the sports package
Backed by a 5–7 Year Limited Hull Warranty
Comprehensive cover on hull fabric, welded seams, valves, air deck and fittings.
Buy this boat, get looked after for life — and start saving for the next one
Every owner joins AeroWave Rewards — earn points on this order and every upgrade after — and can open an AeroWallet to put money aside for their next boat, with a 5% top-up bonus from us when they buy.
- ▸ 10% off every accessory — capped at A$50 saving per order
- ▸ Up to A$650 off your next boat with points
- ▸ AeroWallet: save toward your next boat, +5% top-up when you buy
- ▸ 3,000 pts + A$200 boat credit for every mate you refer

The full numbers
- Length
- 4.0m / 13'1"
- Beam
- 1.80m / 71"
- Tube Diameter
- 50cm
- Bare Boat Weight (without Bimini & wheel kit)
- ~56kg / 123lbs
- Capacity
- 6 Adults / 750kg
- Maximum Horsepower
- 40HP Short Shaft
- Recommended Horsepower
- 20-30HP Short Shaft
- Floor Pressure
- 8-10 PSI maximum
- Construction
- Thermo-welded seams + German VALMEX® 7321 Heavy Plus 1.2mm
- Transom
- Fully horizontal grilled transom — open drainage, no bung
- Packed Size (500–700D ripstop PVC bag)
- ~135cm x 80cm x 45cm — 2 bags (hull + floor/accessories)
- Transom Height
- 380mm (as of 1 July 2026 — previously 405mm) — lower transom drops the prop deeper for more bite and eliminates ventilation & aeration at speed
- Drainage
- Grilled drain system — no plastic components. Plastic pop-up / bung drains trap prawn heads, weed and grit and are a nightmare to clean out; a grilled deck flushes clear every time.
What's included in the Full Package
- Premium catamaran hull platformTwin-hull stability for a more confidence-inspiring ride and reduced roll at rest.
- Full Grey BiminiShade and comfort already included for longer days on the water.
- Heavy-duty aluminium reinforced grilled transomStronger transom assembly designed for long-term outboard mounting — no plastic components.
- LockPro Plus wheel systemItalian factory-installed wheels for easier beach and ramp launching. Grey or red.
- Heavy-duty bow bridleFor beach launching, towing and retrieval.
- 2 × aluminium bench seatsFlexible passenger and fishing layout options.
- 2 × padded under-seat storage bagsCushion-top bags strap under each bench — dry storage for tackle, safety gear and personal items.
- 2 × heavy-duty rod holders + 2 × deck-mounted rod-holder basesBases glued to the deck by our production team; clip-in heavy-duty rod holders included — fishing-ready straight out of the bag.
- 22 PSI 12V lithium electric air pump with built-in batteryCordless inflation to full working pressure — no car engine, no compressor required.
- 10 PSI high-pressure air deck floorBuilt with specialised drop-stitch technology and covered in VALMEX non-slip material. A firmer underfoot feel for standing, fishing and moving around with confidence.
- 4 × Over-Inflation Safety Valves (one per chamber)Standard on every boat — premium pressure protection for hot Australian conditions.
- Grilled deck drainage systemNo plastic components. Plastic pop-up / bung drains trap prawn heads, weed and grit; our grilled deck flushes clear every time.
- Oars, high-pressure manual back-up pump & marine repair kitCore essentials included so you can get started properly.
- 2 × Premium 500–700D ripstop PVC carry bagsStrong boat storage bags included for transport and pack-down.
- Express courier delivery included — DHL Express, FedEx or UPSFreight is built into the price. 7–10 days door-to-door after manufacture, fully tracked and insured, with GST, import duty and customs clearance all covered — nothing to pay on arrival.
The problem: the advertised price is never the price you pay.
You find a boat that looks cheap, then the shade, the wheels, the pump, the seats and the rod holders each get added at the checkout — and you are A$1,500 past where you started. Everything below is already on the boat when it lands at your door.
The outcome: one price, one build, and a boat that is still working in 10–12 years instead of being replaced at three to five. You buy one boat, not two.
Build, price, checkout.
Choose Boat only or the Full Package — the price and what's included both change with your choice. Full Package is pre-selected.
Everything in your package — hull colour, wheels, Bimini, floor, fabric — locked in below. Pay the live price shown.
Boat only, or the Full Package with Bimini, wheel kit and extras. Prices update instantly.
warranty
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- Full Package (Bimini + wheel kit)
- Hull: Arctic Grey / Black
- Wheels: Storm Grey
- Bimini: Light Grey
- Floor: Black Valmex 1.0mm Non-Skid/Slip
- 2× rod holders + 2× deck-mount rod holder mounts (included)
- 22 PSI 12V lithium pump with built-in battery (included)
- 2× aluminium bench seats (included)
- 2× padded 500–700D ripstop PVC under-seat bags (included)
- Grilled aluminium transom — no plastic parts (included)
- Repair kit & 2× carry bags (included)
By continuing to checkout you accept our Terms & Conditions and Order & Refund Policy. Your acceptance is recorded with a timestamp.
Your price, delivered to your door — freight included.
We email the full PDF quote (spec, freight, finance, WavePay) to your inbox in under 60 seconds. No spam — one quote, one follow-up.
Talk to Adam or Gary — they'll give you a fully-landed price in 60 seconds. Freight, duty, GST — all included, no surprises at the door.
Email yourself a copy and we'll hold today's price for 7 days — no card, no obligation.
*AMMF indicative only, subject to approval.
Watch the Viper 330–430 go from kit bag to water — and back again.
The whole Viper 330–430 range packs down cleanly for caravan boots, ute trays and compact storage without sacrificing the VALMEX® hull feel on the water.
Viper 330–430 — from kit bag to ready-to-launch.
Full put-together walkthrough — floor, tubes, transom, ready to motor. Same process across the entire Viper 330–430 range.
Viper 330–430 — back into the bag at the campsite.
Deflate, fold, roll and stow. The whole Viper 330–430 process is built for owners who need a serious boat that still packs away properly.
Four weekends that actually happen with this boat.
We stopped selling specs a while back. Here's what owners actually do with the Aerowave Viper 400 Open Bow — Sports Package — pick the one that sounds like your Saturday.
Estuary and reef fishing
Rod holders where you actually stand.
Two heavy-duty rod holders + glued mounts included. Grilled aluminium transom flushes prawn heads and weed — no plastic strainers to clog.
Yacht tender / mothership run
Sits on top of the water, not down in it.
Catamaran tunnel hull stability, wide deck space and straight tracking under load — beach it, tender the yacht, run to shore for ice.
Family weekends
Two kids, one dog, dry feet.
Wide bow bench, low tube entry, non-slip deck. Wheels the boat down the sand solo — no ramp queues.
Off-grid camping
Find a river, lake or summer camp and stay longer.
Catamarans suit off-grid camping: stable at rest, shallow-water friendly and bag-packed for the 4WD or van. The 4 m Open Bow is the camping-expedition setup.
See it from every angle.
Every detail, engineered to last
From the reinforced aluminium transom to the heat-welded seams and premium 1500 GSM / 1.2 mm VALMEX® tubes — this is what sets the Viper apart.

Australia: the price you see is the landed price to your door.
For Australian deliveries freight, GST, import duty and customs clearance are all included and already paid before your boat ships. Nothing to pay the courier, no customs invoice weeks later.
Shipping overseas? Freight is still included in the price. Your own country’s import duty and VAT / GST are payable on arrival unless your quote says we’re covering them — we’ll give you the exact figure before you pay.
Australian designed, shipped from Hong Kong. Every boat is designed and engineered on the NSW Central Coast, then built to our spec offshore. International orders ship direct from our Hong Kong dispatch hub — that is how we keep the landed price competitive instead of doubling or tripling the freight by routing through Australia first.
Buying overseas costs you nothing in extra delivery days.
Your boat leaves our overseas manufacturer on DHL Express and is at your door in 7–10 days — the same window a local seller takes to truck a boat interstate. Same wait, insured and tracked the whole way, and the import side is already handled.
- Duty & GST paid before dispatch
- Customs clearance handled by us
- DHL Express door-to-door, fully insured
- Live tracking + signature on delivery
- Overseas: freight included, local duty on arrival
Competitors typically add A$600+ for freight and GST on top of their advertised price. Ours is already in. The only possible extra is a flat A$600 truck-leg contribution for true remote postcodes (NT, Far-North QLD, remote WA, regional TAS, outback SA).
Frequently asked questions
Is the Viper 400 worth paying more for?
Yes, for buyers who value stability, stronger materials, included gear, proper delivery support and a more complete ownership package.
What motor suits the Viper 400?
The Viper 400 is rated up to 40HP short shaft. Outboard choice depends on load, usage and performance expectations.
Is delivery really included?
Yes — every boat includes Express Delivery Credit included — Australia-wide, approximately 30 days door-to-door. Our new direct Hong Kong → Sydney sea service runs about 14 days, then Australian customs and biosecurity clearance, then courier delivery to your door. Your price includes GST, import duties and standard delivery — no surprise charges on arrival. Express courier delivery (DHL Express, FedEx or UPS) is included in the price — 7–10 days door-to-door after manufacture. Remote-area addresses may incur a checkout-calculated surcharge.
Is the Viper 400 good for fishing?
Yes. The stable catamaran platform, firm floor, rod holder mounts, secure layout and included wheels make it highly practical for fishing use.
What makes it better for Australian conditions?
Premium German VALMEX® 7321 Heavy Plus 1.2mm fabric, thermo-welded seams, over-inflation safety valves and Australian support all help suit real Australian use.
Compare this boat side-by-side with another model
Build your own branded PDF comparison — specs, inclusions and pricing, ready to download or share.
Need insurance for your boat?
Send us your boat and usage details and we'll forward the request to suitable Australian marine insurance specialists — one short form, no obligation.
Before you spend a cent
Buying from Australia, delivered to United States
You have never heard of us, we are on the other side of the world, and the internet is full of fakes. Fair enough. Here is everything you would need to check us out, in one place — no forms, no chat bot.
Australian designed business
Easy Inflatables, Avoca Beach NSW 2251. ABN 96 856 548 613. International orders ship from our Hong Kong hub.
222 owner reviews, 4.8 average
Read them in full, good and bad, on our reviews page.
CE certified, 7-year hull warranty
ISO 6185-3 and EU Directive 2013/53/EU. Warranty honoured worldwide.
Tracked, insured, door to door
Freight included on our supported lanes. Duty payable on arrival, stated up front.
- Who am I actually buying from?
- Easy Inflatables, Avoca Beach NSW 2251, Australia. ABN 96 856 548 613. Sean is the owner and skipper, Gary Stewart handles sales on +61 2 4335 1603, Karen Matthews handles email. The boats are Australian designed; international orders ship from our Hong Kong dispatch hub so your landed price stays competitive. Phone us before you pay a cent — a real person answers.
- Is this really an Australian product?
- Yes — Australian designed and engineered on the NSW Central Coast. Manufacturing is done offshore to our spec, and international orders ship direct from our Hong Kong dispatch hub. If we routed every boat through Australia first, the freight alone would roughly double or triple your cost for the same hull.
- What do I pay, and what is not included?
- The price you see is the boat with freight already included on our supported lanes. Import duty and local taxes are payable by you on arrival — we do not hide them inside the price, and we do not pretend they do not exist.
- How do I pay safely?
- Card through Stripe (Visa, Mastercard, Amex, Apple Pay, Google Pay) or bank transfer. Card payments carry your bank's own dispute protection. We never ask for crypto, gift cards or payment to a personal account.
- What if it arrives damaged?
- Every boat ships fully tracked and insured door to door. Photograph the carton and the boat on arrival and email us — transit damage is claimed and replaced through us, not left with you and the courier.
- Is the warranty real outside Australia?
- Yes. The 7-year hull warranty on 1.2 mm VALMEX Heavy Plus and Orca Hypalon hulls applies wherever you are. Replacement parts are held in Australia and at our overseas hub and go out by express courier to your door.
- Is the boat actually certified?
- All Aerowave catamarans are CE certified to ISO 6185-3 and EU Directive 2013/53/EU. Certification paperwork is supplied with the boat — ask and we will send it before you order.
Customer reviews
Verified Google reviews from real Aerowave Viper 400 Open Bow — Sports Package owners across Australia.
Best decision I've made for our family this year. The harbour cruises have been unreal.
Clipped a mooring pole coming in at dusk — heart in my mouth. Not a mark on the hull. That 1.2 mm VALMEX is the reason I bought it and it paid for itself in one second.
Open bow is perfect for the kids and gear. Inflated with the 22 PSI pump in under six minutes and we were off the ramp before the boat next to us had the cover off.
Ran it over a submerged branch in the river at half throttle. Scuffed the paint on my old boat's leg, did nothing to the tubes. Bimini and wheels standard was the clincher.
Third inflatable I've owned and the first one that hasn't gone soft by the second summer. Left it inflated all season, same pressure every trip. It just works.
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- Factory build starts at instalment 2
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