S2 9.1 Meter (Grand Slam)
Description
The S2 9.1 M (also known as the S2 9.1 or 9.1 Meter) is a high-performance racing keelboat designed by the G&S Design Group (Graham & Schlageter) and built by S2 Yachts in Holland, Michigan, from 1983 to 1987. Approximately ~100 units were produced, targeting the Midget Ocean Racing Club (MORC) rule for offshore racing. The "M" denotes the standard masthead sloop rig (versus the earlier "SM" short-mast variant on the first 7 hulls, which were underpowered and later retrofittable). It's a fractional-rigged evolution from S2's earlier cruisers, emphasizing speed, one-design fairness, and club racing prowess, with a nod to light cruising. Active fleets persist in the U.S. (e.g., Seattle, St. Petersburg) via the S2 9.1 Meter North American One Design Class Association (s291.com), where it's raced PHRF-style (123–135 rating).
Construction Details
| Designer | Graham and Schlageter |
|---|---|
| Builder | S2 Yachts |
| Length | 29.855 ft |
| LOA | 30.830 ft |
| LWL | 30.000 ft |
| Beam | 22.420 ft |
| Max Draft | 5.500 ft |
| Min Draft | 1.330 ft |
The standard boat dimensions
| i | 41.30 ft |
|---|---|
| j | 12 ft |
| p | 35.30 ft |
| e | 13.67 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 41.30 ft | 12 ft | 35.30 ft | 13.67 ft | - | - | - | - |
Sails
| Sail Type | MAINSAIL |
|---|---|
| Luff | * 35.3 ft - (10759 mm) |
| Foot | * 13.67 ft - (4167 mm) |
| Leech | * 37.13 ft - (11317 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 37.41 ft - (11403 mm) |
| Head (inches) | * 6 in - (152 mm) |
| Area | * 248.85 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | * 34.41 ft - (10488 mm) |
| Foot | * 15.66 ft - (4773 mm) |
| Leech | * 30.33 ft - (9245 mm) |
| Percentage LP | * 115 % |
| Length Perpendicular | * 13.8 ft - (4206 mm) |
| Deck Angle | * 12 ° |
| Area | * 237.44 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | 40.75 ft - (12421 mm) |
| Foot | 12.42 ft - (3786 mm) |
| Leech | 37.5 ft - (11430 mm) |
| Percentage LP | * 94.67 % |
| Length Perpendicular | * 11.36 ft - (3463 mm) |
| Deck Angle | * 7.6 ° |
| Area | * 231.53 ft² |
| Sail Type | GENOA |
|---|---|
| Luff | * 40.86 ft - (12454 mm) |
| Foot | * 19.18 ft - (5846 mm) |
| Leech | * 38.68 ft - (11790 mm) |
| Percentage LP | * 150 % |
| Length Perpendicular | * 18 ft - (5486 mm) |
| Deck Angle | * 4 ° |
| Area | * 367.74 ft² |
| Sail Type | ASYMMETRICAL |
|---|---|
| Luff | * 40.86 ft - (12454 mm) |
| Foot | * 19.8 ft - (6035 mm) |
| Leech | * 37.59 ft - (11457 mm) |
| Perc LP | * 165 % |
| Area | * 607 ft² |
| Sail Type | SPINNAKER |
|---|---|
| Stays | * 40.86 ft - (12454 mm) |
| MidGirth | * 21.6 ft - (6584 mm) |
| Foot | * 21.6 ft - (6584 mm) |
| Perc LP | * 180 % |
| Area | * 750 ft² |
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.