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The 7.7m Sport D-Tube is our supersized all-aluminium amphibious boat that comes with a rugged design combined with substantial internal space, and the option of an open or closed bow.


The 7.7m D-tube meets the demand of those looking for a robust and versatile boat with ample deck space.

The sport centre console allows full walk-around access to the entire boat, while still giving you space for all the electronics you need for a trip out on the water. The placement of the inboard powerpack on the transom allows for additional under-seat storage beneath the helm seat, the tall pontoons give a smooth and secure ride.​


The Benefits

  • Your choice of an open or closed bow
  • Tall robust all-aluminium pontoons provide significant protection from the elements
  • Sport console allows for walk-around access, which is great for fishing and packing gear
  • Can carry up to 6 passengers

Contact us to learn more about the 7.7m D-Tube, and how you can experience amphibious freedom.

Automatically activates brakes for safety
Power steering for easier effort at the wheel
Maximum traction and terrain capability

7.7M Sport D-Tube specifications

Length Overall (Wheels up)
7.8m (25’ 7”)
Hull Length Overall (not incl. wheels)
6.39m (21’)
2.45m (8’ 1”) [Wheels Down], 1.95m (6’ 3”) [Wheels Up]
Beam overall
2.26m (7’ 5”)
Draft (Outboard trimmed up)
0.42m (16 1/2”)
Hull Deadrise at transom
21 degrees
Hull Plate
5mm, (3/16”) Marine Grade Aluminium, (5083)
Displacement – no fuel
1770kg (3902lbs)
Max Payload (including passengers)
500kg (1543lbs)
Max passengers
6 Persons, including driver
Fuel Capacity – Petrol
Below deck 180 litre (48 U.S. Gallons)
Top speed Max (Water)
40 knots (74kph/46 mph)
Recommended/Max Outboard
1x 150HP (112 kW) / 1x 200HP (149 kW)
Top speed (Land)
7.5kph (5mph)
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Boat options

Customise your Sealegs

Below is a list of included features on the 7.7M Sport D-Tube Sealegs boat.
Automatic Braking System (ABS)
Power Steering (PS)
All-Wheel Drive (AWD)
Transom ski tower
1100 GPH automatic bilge pump
Dual scuppers
Fuel tank 180L
Inboard engine 22hp
Batteries x 1
Yamaha 200 - Cables
D-Tube Boarding Ladder
35HP Inboard Upgrade
Anchor with chain and 50m rope
Saltwater Washdown Pump
Tie Down Points
Railblaza Mounts - Mobile Device Holder
Railblaza Mounts - Rod Holder
Simrad GPS/ Chartplotter NSS9
Simrad GPS/ Chartplotter NSS12
Chartplotter Upgrades - Outboard Interface
Simrad VHF
Dual Battery System
Illuminated Compass
Fusion Stereo Head Unit, 2 x 6" Speakers
Fusion Stereo Head Unit, 4 x 6.5" Signature Speakers
Fusion Apollo Series Head Unit 6 x 6.5" Signature Speakers, Amp, Sub
Bowsprit with RC8 Windlass and Anchor
Bow Camera
Minn Kota Trolling Motor
Auxiliary Bench Seat
Engine Box Backrest
Helm Seat Backrest
Folding Bimini
7.7m D-tube Extended Clears
Centre Console Cover
Storage Cover - Full Boat Cover
T-Top Sport Console
7.7m Craft Storage Cover
Paint Upgrades - Standard Upgrade
Trailer - 7.7m