Tandem Island Kayak (TI)
Description
The TI (short for Tandem Island) is a popular 18.5-foot sailing/pedaling kayak (often described as a sailing trimaran kayak) manufactured by Hobie. It is the two-person (tandem) version of Hobie's Adventure Island series, designed by Hobie Alter (founder of Hobie Cat). Introduced in the mid-2000s and still in production with ongoing updates (including 2025 models), it has seen significant numbers built as a recreational and adventure platform—hundreds if not thousands sold worldwide. The TI converts a sit-on-top tandem kayak into a stable trimaran by adding removable outriggers (amas), a mast, and sail, while retaining the signature MirageDrive pedal system for propulsion when not sailing.
Construction Details
| Designer | Hobie Alter |
|---|---|
| Builder | Hobie Cat Company (USA) |
| Length | 18.500 ft |
| LOA | 18.500 ft |
| Beam | 10.000 ft |
| Displacement | 130 lb |
The standard boat dimensions
| i | 12 ft |
|---|---|
| j | 4 ft |
| p | 16 ft |
| e | 12 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 12 ft | 4 ft | 16 ft | 12 ft | - | - | - | - |
Sails
Tandem Island Kayak (TI) - ASYMMETRICAL
| Luff | * 12.02 ft - (3664 mm) |
|---|---|
| Foot | * 6.6 ft - (2012 mm) |
| Leech | * 11.06 ft - (3371 mm) |
| Perc LP | * 165 % |
| Area | * 59 ft² |
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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.