Viper 400 Open Bow + Hidea 20 HP Package
4 m Open Bow catamaran with Bimini, wheels, pumps and a short-shaft Hidea 20 HP carburettor 4-stroke — save A$500.
Shown in USD. Billed in AUD ($9,485) at your card's live rate. Freight & duty added at checkout.
Aerowave Viper 400 Open Bow + Hidea 20HP 4-Stroke Short Shaft Package.
How this boat compares
Cheap imports wear out.
European brands cost a fortune.
We build to the European material standard — then sell factory-direct, so you don't pay for a dealer network. Same 10–12 year hull life. Roughly a third of the price.
The story behind the build
The Aerowave Viper 400 Open Bow + Hidea 20 HP 4-stroke package pairs our open-bow 4 m catamaran with the proven Hidea 20 HP carburettor 4-stroke short shaft — the simplest, most serviceable motor we sell.
Open-bow layout means more usable deck up front for fishing, dive gear and camping loads, on a hull built from 1500 GSM / 1.2 mm VALMEX Heavy Plus commercial-grade German fabric. Full Grey Bimini, LockPro Plus wheels, 22 PSI lithium pump and the outboard, bundled and priced to save you A$500 vs buying separately.
| Specification | Detail |
|---|---|
| Length | 4.00 m |
| Beam | 1.80 m |
| Tube diameter | 500 mm |
| Hull fabric | 1500 GSM / 1.2 mm VALMEX Heavy Plus |
| Bare hull weight | ~56 kg |
| Capacity | 6 adults / 750 kg |
| Maximum horsepower | 40 HP short shaft |
| Transom | Grilled aluminium · 380 mm height · no plastic components |
| Air deck | 10 PSI drop-stitch with VALMEX non-slip |
| Hull warranty | 5–7 years |
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
- 4.00 m / 13'1"
- Beam
- 1.80 m / 71"
- Tube diameter
- 500 mm
- Chambers
- 5 + 10 PSI high-pressure air deck floor
- Hull fabric
- 1500 GSM / 1.2 mm VALMEX Heavy Plus
- Transom
- Grilled marine-grade aluminium · 380 mm height · no plastic components
- Hull weight
- ~56 kg (bare boat)
- Capacity
- 6 adults / 750 kg
- Max HP (hull)
- 40 HP · Recommended 20 HP
- Packed size
- ~135 cm x 80 cm x 45 cm — 2 bags
- CE certification
- ISO 6185-3 · EU 2013/53/EU
- Hull warranty
- 5–7 years
- Model
- Hidea 20 HP 4-stroke (short shaft)
- Engine type
- Twin-cylinder, carburettor 4-stroke petrol
- Displacement
- 333 cc
- Shaft length
- Short 15" (fits 380 mm transom)
- Starting
- Manual pull-start (recoil)
- Cooling
- Water-cooled with thermostat
- Fuel system
- Carburettor · 12 L external tank
- Ignition
- CDI
- Tiller / throttle
- Tiller-steer with F/N/R gear shift
- Propeller
- Aluminium 3-blade (upgradeable to stainless)
- Weight
- 55 kg
- Motor warranty
- 5 years (3 + 2 extended)
- Boat + air deck floor
- Viper 400 Open Bow hull, 10 PSI air deck
- Cover
- Full Grey Bimini sun top
- Wheels
- LockPro Plus launch wheel kit
- Pumps
- 22 PSI 12V lithium pump + high-pressure hand pump
- Seating
- 2× aluminium bench seats + 2× padded under-seat bags
- Fishing
- 2× heavy-duty rod holders + 2× deck-mounted bases
- Fuel tank
- 12 L external + hose kit
- Delivery
- Air 7–14 days or free sea 30–40 days
- Hidea outboard delivery — capital cities
- A$350 door-to-door
- Hidea outboard delivery — regional Australia
- A$450 door-to-door
- Hidea outboard delivery — remote areas
- Price on application (remote NT, SA, WA, TAS)
- Hidea 4-stroke oil (required for first fill)
- A$60 — not included, add at checkout
What's included
- Aerowave Viper 400 Open Bow catamaran hull
- 10 PSI high-pressure drop-stitch air deck with VALMEX non-slip
- Hidea 20 HP 4-stroke short-shaft outboard (carburettor, manual pull-start)
- 12 L external fuel tank + hose kit
- Full Grey Bimini sun top
- LockPro Plus launching wheel kit
- 22 PSI 12V lithium electric air pump + high-pressure hand pump
- 2× aluminium bench seats + 2× padded under-seat bags
- 2× heavy-duty rod holders + 2× deck-mounted rod-holder bases
- Heavy-duty bow bridle, oars and marine repair kit
- 2× premium Oxford cloth carry bags
- Owner's manual + outboard setup guide
- 5–7 year hull warranty
- 5-year Hidea outboard warranty
Build, price, checkout.
Everything in your package — hull colour, wheels, Bimini, floor, fabric — locked in below. Pay the live price shown.
warranty
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- Hull: Arctic Grey / Black
- Wheels: Storm Grey
- Bimini: Light Grey
- 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 Oxford cloth under-seat bags (included)
- Grilled aluminium transom — no plastic parts (included)
- Repair kit & 2× carry bags (included)
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 330–400 go from kit bag to water — and back again.
The whole Viper 330–400 range packs down cleanly for caravan boots, ute trays and compact storage without sacrificing the VALMEX® hull feel on the water.
Viper 330–400 — from kit bag to ready-to-launch.
Full put-together walkthrough — floor, tubes, transom, ready to motor. Same process across the entire Viper 330–400 range.
Viper 330–400 — back into the bag at the campsite.
Deflate, fold, roll and stow. The whole Viper 330–400 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 + Hidea 20HP 4-Stroke Short Shaft 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.
Frequently asked questions
Why 20 HP on the Viper 400 Open Bow?
20 HP is the sweet spot — it planes 4–6 adults, sips fuel and stays inside the standard recreational licence bracket in most states. The hull is rated to 40 HP if you want more later.
Is this a carburettor or fuel-injected motor?
Straight carburettor 4-stroke — no electronics on the fuel system. Simple, reliable and serviceable anywhere in Australia. Manual pull-start (recoil).
Is the outboard short shaft or long shaft?
Short shaft (15 inch), matched to the Viper 400 Open Bow 380 mm transom. If you need long shaft, tell us in the notes at checkout.
What is the difference between the Open Bow and the Sovereign?
The Open Bow has an open forward deck — more usable space for fishing, dive gear and camping loads. The Sovereign has an enclosed bow and a heavier hull. Both are 4 m, both 1.2 mm VALMEX.
How is it shipped?
The boat and the outboard ship separately. Boat: A$600 Australia-wide (air upgrade available at checkout). Hidea outboard: A$350 to capital cities, A$450 to regional Australia, price on application for remote NT, SA, WA and TAS.
Is oil included with the outboard?
No — Hidea 4-stroke fully synthetic oil (1 L) is A$60 as an add-on and is required for the first fill on a brand-new motor. Most owners add it at checkout.
What warranty applies?
5–7 years on the hull (VALMEX fabric and welded seams) and 5 years on the Hidea outboard. Full terms at /warranty.
Can I finance the package?
Yes — AMMF finance from around A$85/week on this package. Apply at /finance/apply or pick "Finance with AMMF" at checkout.
Compare this boat side-by-side with another model
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Customer reviews
Verified Google reviews from real Aerowave Viper 400 Open Bow + Hidea 20HP 4-Stroke Short Shaft Package owners across Australia.
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Own it today · pay over 8 weeks
Your fortnightly
4 fortnightly instalments · total $9,485 · no interest, no fees.
- Stripe SetupIntent — no bureau ping
- Boats-only · Australian & international buyers welcome
- Factory build starts at instalment 2
Your build timeline
Deposit paid
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