John R. Brophy
Yacht designer
Models
1
Years active
1908–1918
Length overall
6.4–6.4 m
(21–21 ft)
Hull types
1 mono
Models
| Model | Years | LOA | Hull | Builder |
|---|---|---|---|---|
| GRAVESEND BAY KNOCKABOUT | 1908–1918 | 6.39 m | Monohull | William Wall |
Builders of boats by John R. Brophy
Last updated 30 December 2025