Guillemot "S"

A fun, playful sea kayak for small paddlers
Guillemot S Sea Kayak for Smaller Paddlers
Guillemot S Sea Kayak Plans for Smaller Paddlers
Mac McDevett - Guillemot "S" Wooden Kayak

A simple scaling down of the Guillemot creates a fun and able boat for smaller paddlers. This boat is efficient and easily paddled. Due to its narrow width it may be less stable than other boats you have paddled but if you have been paddling boats designed for larger paddlers you may find they had more stability than you really need.

This boat will be efficient and responsive for small paddler used to boats that are designed for much larger paddlers. It is not a straight-tracking design but is well balanced and behaves ably in rough water.

Included in the Plans:

  • Seven 24" x 36" [61cm x 91cm] Drawing Pages including: An overall drawing, a full size "stacked" form drawing showing all the forms and then all the forms drawn individually and at full size. Also included is a full size pattern for the cockpit.
  • Kayak Building Notes: These notes provide supplemental information such as bill of materials for each design.

Recommended Manual:

Body Plan Drawing
Guillemot S Sea Kayak for Smaller Paddlers Bow Drawing
Profile Drawing
Guillemot S Sea Kayak for Smaller Paddlers Profile Lines
Plan (Top View) Drawing
Guillemot S Sea Kayak for Smaller Paddlers Overhead Plan Drawing


Beginner Small Paddler Average Paddler Large Paddler Extended Tour Fishing Lakes and Rivers Open Water Racing Surf


Length Ft Beam In Beam Gunnel (in) Waterline Length Ft Waterline Beam In Design Displacement Lbs Draft In Waterplane Area Sq Ft Wetted Area Sq Ft Surface Area Sq Ft Volume Cu Ft
16.00 20.00 13.80 20.10 177.00 3.70 15.50 17.70 42.00 10.20

Secondary Measurements

Prismatic Coefficient Block Coef Midship Area Coefficient Waterplane Area Coefficient Lateral Plane Coef Sinkage Moments to change trim 1 inch Righting Moment at 1 degree Vertical Center of Gravity above DWL
0.53 0.44 0.82 0.67 0.79 74.00 54.90 0.76 7.20

Stability Curves

Predicted Drag