Razor Billed Auk

A fast, responsive sea kayak for open water and close to shore
Razor Billed Auk Fast Touring Sea Kayak
Razor Billed Auk Fast Touring Sea Kayak Plans
Razor Billed Auk Fast Touring Sea Kayak

The Razor Billed Auk is a fast boat suitable for long distance touring or recreational racing. It has enough volume to carry gear for an extended tour and has the long waterline and low wetted surface area to move efficiently through the water at speed. This boat is less stable than others in the Great Auk family, but will still be quite comfortable for skilled paddlers in rough water. Due to its length it can bog down a little in steep chop, but it will still be faster than most sea kayaks.

This design was originally created with recreational racing in events like the Blackburn Challenge in mind, and it has proved quite successful at that purpose, but it was not intended to be a flat-out racing machine with the inherent compromises required in such a design. It is intended to function well as a capable touring sea kayak for those people who want to go places quickly and efficiently.

Included in the Plans:

  • Eleven 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 cockpits.
  • Kayak Building Notes: These notes provide supplemental information such as bill of materials for each design.

Recommended Manual:


Buy a Razor Billed Auk Kit from Chesapeake Light Craft

Digital Download

Body Plan Drawing
Razor Billed Auk Fast Touring Sea Kayak Front Sections
Profile Drawing
Razor Billed Auk Fast Touring Sea Kayak Side View
Plan (Top View) Drawing
Razor Billed Auk Fast Touring Sea Kayak Plan Lines


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
19.00 20.00 18.60 18.40 259.00 3.40 20.10 23.30 65.00 13.40

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
0.62 0.50 0.80 0.70 0.77 96.00 101.00 0.02 7.10

Stability Curves

Predicted Drag