Terrapin 21
Description
The Terrapin 21 is a small, light-displacement sailboat designed by Reuel B. Parker featuring a gaff-rigged configuration that offers spirited performance with variable draft capabilities for versatility across different sailing conditions. This 21-foot vessel measures 24.5 feet LOA with a 20.08-foot LWL, 8-foot beam, and displaces 2,050 pounds with a variable draft system ranging from 0.75 feet (board up) to 5.0 feet (board down). The boat features sophisticated cold-molded wood/epoxy/fabric construction with double diagonal marine plywood planks over keelson plank, bilge stringers and chine logs for the bottom, 3/8" marine plywood sides with butt blocks and taped exterior joints, and 3/8" marine plywood decks over sawn beams, all covered with epoxy-impregnated Xynole-polyester cloth and finished with linear polyurethane paint systems. The traditional gaff rig utilizes solid Douglas fir spars for the mast, gaff, and booms, while the interior features painted plywood trimmed with varnished hardwoods. The design incorporates 800 pounds of ballast (either all lead or a combination of 400 pounds lead with 400 pounds water ballast), making it an ideal choice for weekend cruising, day sailing, or club racing with excellent shallow-water access and trailering capabilities.
Construction Details
| Designer | Reuel B. Parker |
|---|---|
| Builder | Home Built |
| Length | 21.000 ft |
| LOA | 24.500 ft |
| LWL | 18.330 ft |
| Beam | 6.750 ft |
| Displacement | 3000 lb |
| Ballast | 800 lb |
| Max Draft | 3.680 ft |
| Min Draft | 1.100 ft |
The standard boat dimensions
| i | - |
|---|---|
| j | - |
| p | - |
| e | - |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| - | - | - | - | - | - | - | - |
Sails
Terrapin 21 - JIBSAIL
| Luff | 17 ft - (5182 mm) |
|---|---|
| Foot | 8.42 ft - (2566 mm) |
| Leech | 13.67 ft - (4167 mm) |
| Length Perpendicular | * 6.71 ft - (2045 mm) |
| Area | * 57.02 ft² |
| Edit in Calculator |
Terrapin 21 - GAFF MAIN
| Luff | 10.33 ft - (3149 mm) |
|---|---|
| Foot | 14.5 ft - (4420 mm) |
| Leech | 17.67 ft - (5386 mm) |
| Tack Angle | * 82.51 ° |
| Diag (clew/throat) | 16.67 ft - (5081 mm) |
| Head | 9.58 ft - (2920 mm) |
| Area | * 152.8 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.
Comments
