Ron Holder/Dave Ulmann
Yacht designer
Models
1
Years active
1980–1987
Length overall
6.2–6.2 m
(20–20 ft)
Hull types
1 mono
Models
| Model | Years | LOA | Hull | Builder |
|---|---|---|---|---|
| HOLDER 20 | 1980–1987 | 6.20 m | Monohull | Vagabond Sailboats/Hobie |
Builders of boats by Ron Holder/Dave Ulmann
Last updated 30 December 2025