Innespace Seabreacher

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Class overview
Builders: Innespace
Preceded by: Innespace Dolphin
General characteristics [1]
Type: Semi-Submarine
Displacement: 612 kg (1,349 lb)
Length: 5.27 m (17.3 ft)
Beam: 1.0 m (3.3 ft)
Installed power: 260 bhp (190 kW)
Propulsion: axial flow jet pump
  • Surface: 47 kn (87 km/h; 54 mph)
  • Underwater: 21 kn (39 km/h; 24 mph)
Capacity: 2
Crew: 1

Innespace Seabreacher (or Sea Breacher) is a two-seat semi-submersible[2] personal watercraft "submarine", with a shape based on that of a dolphin, and the ability to imitate a dolphin's movement.


The watercraft was designed and developed by engineers New Zealander Rob Innes and his partner American Dan Piazza, who are also the founders of the American company Innespace Inc., which markets, builds and sells the semisub watercraft to customers. It is the production model of the single-seat Innespace Dolphin. The concept came from VASH (variable attitude submersible hydrofoil), which was invented by Thomas "Doc" Rowe[3] and Dennis "Dusty" Kaiser in 1987 with his boat, Noland Won.[4][5]


The two seat vessel is powered by an Atkins Rotary Marine engine coupled to a Hurth V-drive transmission.

Seabreachers are available in a wide array of colour specifications and insignias - one Seabreacher even resembles a space shuttle.


  1. ^ "Seabreacher Z". Seabreacher Australia.
  2. ^ About Seabreacher Australia
  3. ^ US 5237952 
  4. ^ Pyatt, Jamie (12 January 2011). "Seabreacher is the latest must-have toy for millionaires". The Sun. Retrieved 27 May 2014.
  5. ^ "The Bionic Dolphin". Retrieved 27 May 2014.

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