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Kai Wa'a · OC1 outrigger · Out of production

Kai Wa'a Scorpius

High-volume classic OC1 hull known for great flat-water speed with superior, maneuverable surfing performance. The full-volume original suits larger paddlers or beginners; XM trims volume for medium paddlers, XS for smaller. Paddled with an ama, not a bare ski hull. Dimensions shown are the XM.

Length
6.4 m
Beam
38 cm
Deck
33.5 cm
Lightest
9 kg
Kai Wa'a Scorpius — Outline drawn to scale from published length and deck height
Outline drawn to scale from published length and deck height · Surfski Index

Specifications

Length
6.4 m
Beam
38 cm
Deck height
33.5 cm (est.)
Category
OC1 outrigger
Skill level
intermediate
New price
Not listed new

Layup weights

common9 kg

On-water profile

Stability
8.0
Speed
6.0

Both scores are rated at the hull's own design weight. How these are derived.

OC1 with ama - not on the same axis as the Epic V8 / Fenn Elite S ski scale; high-volume hull plus ama makes it one of the more stable, beginner-friendly OC1s, at the cost of outright speed. Rated on the requested scale accordingly.

Suits: Versatile - strong flat water plus playful, maneuverable surf; forgiving enough as a starter OC1, roomy for bigger paddlers.

Paddler weight

This hull is built around a paddler of about 78 kg. It stays workable from 68 kg to 82 kg, and sits at its best between 72 kg and 79 kg.

Derived from published hull dimensions and calibrated against manufacturer paddler limits, not taken from a marketing range. The method, in full.

Generations

2008-c.2018

NOT a surfski - Kai Bartlett's classic single-hull OC1 outrigger canoe. Family: Scorpius (large volume), Scorpius XM (medium), Scorpius XS (small); 'Scorpius X' refers to the XM/XS variants. Not in Kai Wa'a's current designs — the live range is the Vela, Ares, Draco and Antares, with the Scorpius surviving only as a footer thumbnail (checked 27 Aug 2026).

What works, and what it costs you

What works

  • Very stable, forgiving high-volume OC1; good first outrigger
  • Great flat-water glide and superior, maneuverable surfing
  • Size range (Scorpius/XM/XS) fits different paddler weights
  • Well-built, light, stiff Kai Wa'a construction

Trade-offs

  • Not a surfski - OC1 with ama and different technique
  • Older/legacy design, superseded by newer Kai Wa'a OC1s; new stock scarce
  • Lower top-end speed than modern race OC1s

What paddlers say

Scorpius XM described as great in flat water with superior, very maneuverable surfing, aimed at medium-to-larger builds (oc1blogger.wordpress.com)Reported experience
Full Scorpius noted as high-volume and an excellent starter OC1 or larger-paddler boat (surfski.info / OCPaddler)Reported experience

Where to buy

The Scorpius is out of production. It turns up on the second-hand market; there is no new-boat channel for it.

Kai Wa'a ↗

No mapped dealer for Kai Wa'a yet. Every maker and market we cover.

Legacy model with no current price on kaiwaa.com, whose page 404s. This is an OC1, not a surfski.

Sources