E. F. Butler
Yacht designer
Models
2
Years active
1960
Length overall
9.5–9.5 m
(31–31 ft)
Hull types
2 mono
Models
| Model | Years | LOA | Hull | Builder |
|---|---|---|---|---|
| CONTROVERSY 30 | 1960 | 9.50 m | Monohull | Mount Desert Yacht Yard |
| CONTROVERSY 31 | 1960 | 9.45 m | Monohull | Mount Desert Yacht Yard |
Builders of boats by E. F. Butler
Last updated 30 December 2025