Helsen
Yacht designer
Models
3
Years active
1975–1977
Length overall
6.6–7.2 m
(21–24 ft)
Hull types
3 mono
Models
| Model | Years | LOA | Hull | Builder |
|---|---|---|---|---|
| EXPLORER 21 (HELSEN) | 1977 | 6.55 m | Monohull | Southcoast Boats |
| INTERNATIONAL 21 | 1976 | 6.55 m | Monohull | International Yacht Corp. |
| INTERNATIONAL 23 | 1975 | 7.24 m | Monohull | International Yacht Corp. |
Builders of boats by Helsen
Last updated 30 December 2025