Kelsall 38ma
Description
The Kelsall 38MA is a modern custom cruising catamaran designed by legendary British multihull pioneer Derek Kelsall (using his KSS—Kelsall Sandwich System—flat panel foam sandwich construction method for lightweight, strong builds). It is based on Kelsall's digital plans for the 38MA hull (a performance-oriented cat with modern lines, slender hulls, and good load-carrying for cruising), built as a one-off or semi-custom project rather than a mass-production model. The specific example often referenced (e.g., S/V Cattywampus) was constructed at Maine Yacht Center in Portland, Maine, USA, with a build start around 2014 and launch in spring 2019—using vacuum-infused panel construction with H80 Divinycell foam core and unidirectional glass/epoxy for efficiency and strength. It features a sloop rig (no mizzen on standard configurations), spacious layout (comfortably sleeps 8 with 2 heads, large bright saloon, modern galley, and ample storage), and is suited to family cruising, charter potential, or coastal/offshore use with good stability and performance. Production is limited/custom (plans-based; only individual builds like this one documented, no factory series)
Construction Details
| Designer | Derek Kelsall |
|---|---|
| Builder | Maine Yacht Center |
| Length | 38.250 ft |
| LOA | 38.250 ft |
| Beam | 21.000 ft |
| Year Built | 2014 |
| Notes | This is design by Derek Kelsall being built by Stack Marine. Questions about the boat and the build can be addressed to [email protected] |
The standard boat dimensions
| i | 44.55 ft |
|---|---|
| j | 8.58 ft |
| p | 40.92 ft |
| e | 15.84 ft |
| p2 | - |
| e2 | - |
| i2 | - |
| j2 | - |
| I | J | P | E | P2 | E2 | I2 | J2 |
|---|---|---|---|---|---|---|---|
| 44.55 ft | 8.58 ft | 40.92 ft | 15.84 ft | - | - | - | - |
Sails
Kelsall 38ma - MAIN (LG ROACH)
| Luff | 40.35 ft - (12299 mm) |
|---|---|
| Foot | 15.74 ft - (4798 mm) |
| Leech | * 42.84 ft - (13058 mm) |
| Tack Angle | 88 ° |
| Diag (clew/head) | 43.68 ft - (13314 mm) |
| Head (inches) | 18.4 in - (467 mm) |
| Area | * 345.19 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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