Knarr 30
Description
The Knarr (also known as the Knarr 30 in some references) is a classic Norwegian one-design keelboat designed by Erling Kristoffersen in 1943 during the German occupation of Norway. The first production boat was delivered in 1946 by builder Einer Iversen (Børresen Bådebyggeri later became a primary builder). It was named after the Norse trading ships called knarr and was commissioned as a replacement for the Nordic Folkboat (considered ugly by some Norwegians), with a focus on racing performance and escape potential if needed. The class spread to Denmark, Germany, and especially San Francisco Bay (introduced in 1960 by Knud Wibroe, with the International Knarr Championship starting in 1969 on the Bay as its only U.S. home). Fiberglass construction was introduced in 1974, improving durability while preserving the wooden aesthetic and lines. It's a fractional sloop with a fin keel, built in wood (mahogany/oak) or fiberglass, known for being stout, underrigged (to suit San Francisco Bay's strong winds), and excellent for Corinthian racing with a vibrant social community. The class thrives in Norway, Denmark, and San Francisco Bay, with active fleets and international championships. Approximately 450–500 hulls have been built over the decades.
Construction Details
| Designer | Erling Kristoffersen |
|---|---|
| Builder | Børresen Bådebyggeri |
| Length | 30.330 ft |
| LOA | 30.330 ft |
| LWL | 20.370 ft |
| Beam | 6.560 ft |
| Displacement | 4905 lb |
| Max Draft | 5.000 ft |
| Year Built | 1946 |
The standard boat dimensions
| i | 25.43 ft |
|---|---|
| j | 6.56 ft |
| p | 31 ft |
| e | 11.15 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 25.43 ft | 6.56 ft | 31 ft | 11.15 ft | - | - | - | - |
Sails
Knarr 30 - MAINSAIL
| Luff | * 31 ft - (9449 mm) |
|---|---|
| Foot | * 11.15 ft - (3399 mm) |
| Leech | * 32.34 ft - (9857 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 32.58 ft - (9930 mm) |
| Head (inches) | * 5.25 in - (133 mm) |
| Area | * 178.66 ft² |
| Edit in Calculator |
Knarr 30 - JIBSAIL
| Luff | 21.82 ft - (6651 mm) |
|---|---|
| Foot | 8.53 ft - (2600 mm) |
| Leech | 21.16 ft - (6450 mm) |
| Percentage LP | * 114.5 % |
| Length Perpendicular | * 8.21 ft - (2502 mm) |
| Deck Angle | * -4.67 ° |
| Area | * 89.56 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.