Charles Wittholz 11ft Dinghy/Catboat
Description
The Charles Wittholz 11ft Dinghy/Catboat (commonly called the Wittholz 11' Dinghy) is a charming, traditional small wooden boat designed by Charles Wittholz (1918–1993), a prolific American naval architect who studied at the University of Michigan and MIT, worked with legends like John Alden and Philip Rhodes, and specialized in catboats, small craft, and power trawlers over his 50+ year career. This design draws inspiration from classic New England catboats and Whitehalls, featuring a beamy yet fine-lined hull with a round bottom, sweeping sheer, tumblehome stem, nearly wineglass transom, and barn-door rudder—making it a true catboat in miniature, optimized for protected waters like lakes, harbors, or as a tender. It's versatile: excellent under oars (light and efficient rowing), fun to sail with its gaff rig (or optional lug), and adaptable for a small outboard. Wittholz tailored the plans for home builders, using cold-molded construction (no frames, easier than steam-bending), with lofting optional and intermediate skill level.
Construction Details
| Designer | Charles Wittholz |
|---|---|
| Builder | Home Built |
| Length | 11.000 ft |
| Beam | 5.000 ft |
| Displacement | 150 lb |
| Max Draft | 3.000 ft |
| Min Draft | 0.670 ft |
The standard boat dimensions
| i | - |
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| j | - |
| p | - |
| e | - |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
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| - | - | - | - | - | - | - | - |
Documents
Blueprints
Sails
Charles Wittholz 11ft Dinghy/Catboat - GAFF MAIN
| Luff | 7.25 ft - (2210 mm) |
|---|---|
| Foot | 10.42 ft - (3176 mm) |
| Leech | 15.33 ft - (4673 mm) |
| Tack Angle | * 81.94 ° |
| Diag (clew/throat) | 11.83 ft - (3606 mm) |
| Head | 7.58 ft - (2310 mm) |
| Area | * 81.24 ft² |
| Edit in Calculator |
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.
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