8m Amphibious Boat for Offshore Fishing
NZ | Flyfin 820HTA
Built for longer offshore runs and deeper fishing grounds, the Flyfin 820HTA is an 8m amphibious boat, 8.2m overall, designed and built by Flyfin Boats in Papamoa Beach, New Zealand. It carries the heavier-duty Tectrax T4000 Gen2 wheel system, built in to handle the 820’s larger hull, so this offshore amphibious boat still launches straight off the beach with no boat ramp required. Rated for 300 to 450 hp, with a 300L fuel tank and an 800kg payload, it’s as much an expedition boat for longer, multi-day trips as it is a serious fishing platform, and the largest standard-beam model in the Amphibious range. See the full 820HTA specifications →
- Tectrax T4000 Gen2
- Mercury 300hp XL
- Custom-Built Trailer
Flyfin 820HTA Package
From $469,097 NZD
The standard package includes the 8.2m amphibious hull with the Tectrax wheel system, a Mercury 300 hp XL outboard and a custom-built Flyfin Aluminium Trailer, matched and ready to launch when it leaves Papamoa Beach. The final price depends on your layout and chosen options.
Why the 820HTA?
Power & Performance
Rated for 300 to 450 hp, the 820HTA has the power ceiling for owners who want performance in reserve.
Systems
The 820HTA steps up to the heavier-duty Tectrax T4000 Gen2, rated to a 4000kg gross vessel mass for its larger hull and rigged weight.
Offshore Amphibious Capability
A 300L fuel tank and an 800kg payload make the 820HTA a serious platform for long days offshore, whether you're fishing hard or taking the family out.
Layout & Storage
A 2.55m beam, a carpeted forward cabin, two underfloor wet lockers and four internal shelves give real room to move, and dry storage for longer trips.
All Specifications
*Specifications may vary based on chosen equipment.
Performance may vary due to equipment, weather and load conditions.
What Comes Standard on the 820HTA
Every 820HTA ships fully equipped as standard. See the full feature list, the Tectrax wheel system and the specifications below. Beyond that baseline, the configuration can be adjusted to suit how you'll use the boat and your onboard preferences. The 820HTA carries the larger Tectrax T4000 Gen2 as standard, a heavier-duty amphibious drive rated to a 4000kg gross vessel mass for the 820's larger hull.
01Engine
- Standard package includes a Mercury 300 hp outboard
- Recommended power: 300 to 450 hp
02Trailer
- 6mm 5083 extra heavy-duty welded frame, tandem axle
- Tandem axle with 1500kg axle rating and leaf springs
- Trojan axles and hub assembly
- Double return fold on the main beams for stiffness and excellent road holding
- Extra-low design for easy launching
- Open channel design for easy cleaning
- 13" black alloy wheels with large-profile 195R13C tyres
- Flyfin easy-load slipper bunks with nylon strip
- Solid welded snubber block to secure the boat tightly
- Trojan duo hitch, 1 7/8" and 50mm
- Trojan 10:1 winch
- Extra heavy-duty solid jockey wheel, 350kg
- Built-in structural walk board
- Flyfin design curved mudguards
- Side steps on the mudguards
- Narva LED submersible lights
- Aft tail light protection
- Optional multi-roller setup
- Optional stone guard
03Steering, trim & anchoring
- Zipwake Pro trim tab system
- SeaStar hydraulic steering
- Savwinch drum winch anchoring system, with anchor and chain
- Tectrax bow wheel camera
04Power, wiring & charging
- Flyfin-engineered dual battery system, with start and house batteries and switching
- 12V wiring loom
- Push-button breakers for the 12V main house battery and 24-hour bilge feed
- 2 x 6-way backlit switch panels with Flyfin LED push buttons
- Dual battery compatible
- CTEK battery charger supplied, plugs into the Flyfin battery system to maintain the boat batteries
05Fuel, bilge & navigation
- Built-in fuel tank, 300L
- In-built fuel expansion tank
- 12V fuel level sender
- 1 x through-hull water pick-up
- Easy-access panel for servicing behind the helm
- 1200GPH automatic bilge pump, auto and manual
- Narva LED navigation lights, side plus anchor and steaming light
- Windscreen wiper on the centre window (other windows optional)
06Hull design & performance
- Amphibious-specific hull
- Delta and planing strakes for hull lift
- Long waterline length for better performance and fuel efficiency, with no motor pod extension
- Offshore performance deep-V hull
- Full buoyancy hull for large-weight engines
- Sealed buoyancy compartments
- Large bow and high sheer line
07Finish & deck hardware
- Fully painted in solid standard Flyfin colours
- Fully welded aluminium rub rail
- Bow rail, 38mm rail and 32mm stanchion
- Trim tab plates
08Fittings, cleats & mounts
- Flyfin proprietary-built stern cage and side boarding ladder
- Built-in bow fairlead and roller
- 3 x welded aluminium cleats
- Welded stern grab rails
- Large swim platform
- Pedestal seat bases with Flyfin sports seats
- Large transducer mounts, port and starboard
09Cockpit floor & layout
- Full-width raised cockpit floor
- Easy-drain cockpit floor with side scupper drains
- Welded foot rests
- Flat floor, U-Deck ready
- U-Deck safety pads in essential areas (if U-Deck is not optioned)
- Drop-down cabin floor
10Fishing & hardtop hardware
- 6 x fully welded rod holders
- 7 x fully welded rod holders on the back of the hardtop
- 2 x fully welded roof grab rails on top of the hardtop
- 2 x fully welded roof grab rails on the underside of the hardtop
- 2 x fully welded aft hardtop grab rails
11Hardtop, glazing & trim
- Large forward hardtop brow to reduce sun and glare
- Large panoramic glass with small mullions for a light, modern and unobstructed view
- Toughened glass with a light grey tint
- Fully glued structural glass for a strong, clean look
- Upholstered panels in the hardtop roof
12Helm & dash
- 10mm piano black acrylic dash
- Large dash top with fiddle rail
- Flyfin multi-spoke heavy-duty premium steering wheel
- Driver and passenger side pockets
13Cabin & storage
- Carpeted forward cabin
- 2 x carpeted shelves in the forward cabin
- 4 x in-built internal shelves
- 3 x cabin squabs, with optional centre infill
- Forward cabin hatch
- 2 x underfloor wet lockers, draining to the ballast compartment
- Raised battery compartment
- Black aft battery compartment hatches
14Boarding & comfort
- Stern walk-through with easy-use washboard flap
- Walk-through for easy boarding
- 8 drink holders
Tectrax Wheel System: Features
- Tectrax T4000 Gen2 amphibious drive system
- Fully electric, with no hydraulic oil system
- Digital integrated steering, drive by steering wheel or joystick
- Optional range-extending batteries
- Optional DC-DC charging off the outboard
- Optional solar charging for the wheel system
Tectrax Wheel System: Specifications (T4000 Gen2)
- Gross vessel mass (GCM), max
- 4000kg
- System weight
- 475kg
- Maximum speed over land
- 9km/h
- Total torque
- 4500Nm
- Maximum incline angle
- 15°
- Range (standard)
- 9km
- Operating temperature range
- 0°C to +45°C
- Battery capacity (standard)
- 7.2kWh
- Battery voltage
- 48V
- Battery cell technology
- Lithium iron phosphate (LiFePO4)
- Recharge time (standard charger, from empty)
- 5 hours
- Ingress protection
- IP67
- Warranty, wheel system
- 3 years
- Warranty, battery
- 10 years
- Length overall
- 8.2m
- Beam overall
- 2.55m
- Height on wheels*
- 3.2m
- Length on wheels, motor down*
- 9.1m
- Length on wheels, wheels up*
- 9.7m
- Recommended power
- 300 to 450 hp
- Fuel tank
- 300L
- Max payload
- 800kg
- Dry hull weight
- 1200kg
- Weight on wheels (engine, wheels and boat, ready to run with delivery fuel)
- 2700 to 3100kg
- Deadrise
- 18°
- Hull thickness
- 6mm
- Transom and engine mount
- 6mm
- Structure, cockpit sole
- 4mm
- Topsides and cabin
- 4mm
- Hardtop
- 3mm
- Wheel mounts
- 12mm
* May vary depending on specification.
Key Features and Accessories for Your 8m Amphibious Boat
Configure Your Flyfin 820HTA
Every layout on a given model shares the same offshore-bred hull, dimensions and construction standard. You're choosing how the boat works for you, not trading away build quality to get the layout you want.
Find Your Amphibious Flyfin
Four models, one system. The 700, 750, 820 and 850 HTA all share the same amphibious capability, but differ in size and capacity. Use the table below to compare specifications across the range and find the right size for how you’ll use it.
Compare all Specifications and Features Hide Specifications and Features
Specifications & features
01Dimensions
02Weight & payload
03Engine & fuel
04Hull construction
05Tectrax wheel system
06Standard hull features
07Topsides & cabin
08Onboard systems
Ready for Expeditions? Meet the Flyfin 850HTA
8.55m Length · 2.8m Beam · 300–450HP · 300L fuel
Frequently Asked Questions
The Flyfin 820HTA is an 8m amphibious boat, 8.2m overall, designed and built by Flyfin Boats in Papamoa Beach, New Zealand. It's the step up from the 750HTA, with a 300L fuel tank, a rating of 300 to 450 hp and the heavier-duty Tectrax T4000 Gen2 wheel system built in, so you can still launch straight off the beach without a ramp.
The 820HTA's larger hull and rigged weight need a heavier-duty wheel system. The Tectrax T4000 Gen2 is rated to a 4000kg gross vessel mass, compared with 3000kg for the T3000 Gen2 fitted to the 700HTA and 750HTA.
Yes. The 820HTA is an offshore amphibious boat with an offshore performance deep-V hull, a 300L fuel tank and an 800kg payload, and its carpeted forward cabin with three cabin squabs makes it a capable expedition boat for longer, multi-day trips. Talk to the Flyfin team about setting it up for the way you travel.
The Tectrax T4000 Gen2 system deploys electrically driven wheels that let the boat drive itself down a suitable beach or shoreline and into the water, with no trailer or boat ramp needed. Once you're afloat, the wheels retract.
No. The Tectrax system is designed for launching and retrieving at the water's edge, not for road use. The boat travels on its Flyfin Aluminium Trailer, and the wheels take over at the beach.
The Tectrax T4000 Gen2 is rated for inclines of up to 15°, which covers most natural shorelines and boat ramps.
The standard 820HTA package includes a Mercury 300 hp XL outboard, and the hull is rated for 300 to 450 hp.
The 820HTA is 700mm longer than the 750HTA on the same 2.55m beam, with a 300L fuel tank instead of 250L, a higher 300 to 450 hp rating, an 800kg payload and the heavier-duty Tectrax T4000 Gen2 wheel system. The 750HTA remains the lighter choice if you don't need the extra length and power.
The Tectrax system is designed for minimal maintenance. Rinse it with fresh water after saltwater use and follow the Tectrax service schedule. The system is covered by a 3-year warranty, and the battery by a 10-year warranty.