Night Heron Double

A uniquely styled tandem kayak
Night Heron Double Sea Kayak
Night Heron Double Sea Kayak
Allen Newhouse Night Heron Double

Drawing inspiration from my Night Heron design to create a tandem kayak, this boat has the swept up ends and overhangs characteristic of that design along with the raked cockpit that makes entry easier.

Although the plans for this design are currently available, I have not built a prototype and am reluctant to fully vouch for the performance so I consider it still on the drawing board.

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:

Body Plan Drawing
Night Heron Double Sea Kayak Bow View Drawing
Profile Drawing
Night Heron Tandem Sea Kayak Profile Drawing
Plan (Top View) Drawing
Night Heron Tandem Sea Kayak Top Plan Lines

Features

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

Measurements

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
21.00 25.00 19.40 24.70 499.00 3.80 28.60 34.10 91.00 21.40

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
0.61 0.51 0.84 0.72 0.68 136.00 151.10 1.92 5.90

Stability Curves

Predicted Drag