Kraken 18
Description
The Kraken 18 is a day racing trimaran sailboat designed by Australian naval architect Lock Crowther in the late 1960s/early 1970s, as a smaller evolution of his successful Bunyip 20 design. It was built in very limited numbers (likely a handful of amateur or small-shop builds, with no mass production—plans were occasionally sought in forums but are now scarce or unavailable). The design prioritized lightweight plywood/epoxy or fiberglass construction for speed and portability, with a focus on performance in sheltered waters or club racing (e.g., as a fast day boat with high initial stability and planing potential). Crowther's multihulls from this era were innovative for their time, influencing later small trimarans, but the Kraken 18 remained niche with no active class or widespread fleet today.
Construction Details
| Designer | Lock Crowther |
|---|---|
| Builder | Home Built |
| Length | 18.000 ft |
| LOA | 18.000 ft |
The standard boat dimensions
| i | - |
|---|---|
| j | - |
| p | 23.50 ft |
| e | 7.50 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| - | - | 23.50 ft | 7.50 ft | - | - | - | - |
Sails
Kraken 18 - MAINSAIL
| Luff | 23.5 ft - (7163 mm) |
|---|---|
| Foot | 7.5 ft - (2286 mm) |
| Leech | * 24.33 ft - (7416 mm) |
| Tack Angle | * 88.02 ° |
| Diagonal | * 24.42 ft - (7443 mm) |
| Head (inches) | * 3.5 in - (89 mm) |
| Area | 88.03 ft² |
| Edit in Calculator |
Kraken 18 - GENOA
| Luff | 19.5 ft - (5944 mm) |
|---|---|
| Foot | 11.58 ft - (3530 mm) |
| Leech | 19.83 ft - (6044 mm) |
| Length Perpendicular | 11.16 ft - (3402 mm) |
| Area | 108.77 ft² |
| Edit in Calculator |
Disclaimer. Boats are not all the same -- even when produced in the same factory of the same model. Sailrite does its best to publish accurate dimensions, but we often find it worthwhile to have our customers measure their boats carefully before we produce kits for them. You should take the same precautions, especially when the data is not from Sailrite. The information on this site is not guaranteed to be accurate. Sailrite offers this content as a service to our community, but takes no responsibility for the reliability of the data provided.
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