Geary 18
Description
The Geary 18 (originally known as the 18' Development Class Flattie or simply the "Flattie") is a historic American one-design racing sloop designed by the legendary naval architect Ted Geary and commissioned by the Seattle Yacht Club in 1928, following a tragic Star boat capsize in 1927 that claimed four young lives. Built initially by the N.J. Blanchard Boat Company in wood and later in fiberglass by yards like the Clark Boat Company, it prioritizes safety, simplicity, and speed for youth and beginner racers, featuring a flat-bottomed hull for planning thrills and unsinkability through foam flotation. With over 200 wooden and fiberglass examples produced through the mid-20th century, it remains a Pacific Northwest icon, actively raced in fleets on Lake Washington and Puget Sound
Construction Details
| Designer | L. E. (Ted) Geary |
|---|---|
| Length | 18.000 ft |
| LOA | 18.160 ft |
| Beam | 5.460 ft |
| Displacement | 525 lb |
| Max Draft | 3.750 ft |
| Min Draft | 1.920 ft |
The standard boat dimensions
| i | - |
|---|---|
| j | - |
| p | 21.83 ft |
| e | 11 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| - | - | 21.83 ft | 11 ft | - | - | - | - |
Sails
| Sail Type | MAINSAIL |
|---|---|
| Luff | 20.83 ft - (6349 mm) |
| Foot | 11 ft - (3353 mm) |
| Leech | * 22.95 ft - (6995 mm) |
| Tack Angle | * 88 ° |
| Diagonal | * 23.21 ft - (7074 mm) |
| Head (inches) | * 5.25 in - (133 mm) |
| Area | * 118.55 ft² |
| Sail Type | JIBSAIL |
|---|---|
| Luff | 15.5 ft - (4724 mm) |
| Foot | 7.5 ft - (2286 mm) |
| Leech | 14.16 ft - (4316 mm) |
| Percentage LP | * 124.18 % |
| Length Perpendicular | 6.83 ft - (2082 mm) |
| Deck Angle | * 4.85 ° |
| Area | * 52.94 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.