Glen L Kodiak

Description

The Glen-L Kodiak, a rugged 29-foot motorsailer designed by Glen L. Witt in the 1970s and offered through Glen-L Marine Designs, exemplifies the firm's vision for versatile, amateur-built cruising vessels that harmonize auxiliary power with simple sail assist for reliable coastal or extended voyages in regions like the Pacific Northwest, Great Lakes, or Mediterranean. Measuring 29 feet LOA (25' LWL) with a 9-foot 6-inch beam and 4 feet draft on a full-displacement round-bilge hull (9,500 pounds displacement, including 3,500 pounds internal lead ballast for a 37% ratio and comfort ratio ~32), it prioritizes a stiff, stable platform with maximum hull speed of ~7 knots, enhanced by sails for motion damping and fuel savings in light airs. The masthead sloop rig deploys 400 square feet of sail (SA/D ~15 for balanced, low-effort handling: self-tacking jib and straight-leech main eliminate winches and battens, controlled from the protected deckhouse or deep self-bailing cockpit), achieving 5–7 knots under sail in 10–20 knots while reefing via slab system for heavy weather; auxiliary power via a 25–40 hp diesel inboard (e.g., Yanmar 3GM or Volvo Penta D1-30) delivers 7–7.8 knots motoring at 1,800–3,000 RPM with 150-gallon fuel range. Designed for "one-off" fiberglass construction using PVC foam sandwich core or solid fiberglass planking with outer laminates (build time 1,500–2,500 hours using full-size patterns and offsets), the Kodiak boasts a robust, low-maintenance hull with integrated chainplates and collision bulkheads; the interior offers 6'2" headroom, a cozy deckhouse saloon with convertible settees, full galley (gimbaled stove, sink, fridge), enclosed head with shower, V-berth forward, and quarter berth aft—sleeping 4–5 comfortably for week-long passages with 100-gallon water capacity. With a handful completed worldwide (e.g., Bulgarian examples sailing the Black Sea with genaker upgrades for 7–9 knot stability), the Kodiak excels in self-sufficiency and predictability, shrugging off chop while trailering feasibility (under 12,000 pounds on a custom cradle) suits occasional overland moves.

Construction Details

Designer Glen L Marine
Length 28.500 ft
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The standard boat dimensions

i -
j -
p 29.83 ft
e 12.25 ft
p2 -
e2 -
i2 -
j2 -

Sails

Glen L Kodiak - MAINSAIL

Luff 29.83 ft - (9092 mm)
Foot 12.25 ft - (3734 mm)
Leech * 31.81 ft - (9696 mm)
Tack Angle * 88.75 °
Diagonal 32 ft - (9754 mm)
Head (inches) 4 in - (102 mm)
Area * 187.04 ft²
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Glen L Kodiak - JIBSAIL

Luff 32 ft - (9754 mm)
Foot 11.25 ft - (3429 mm)
Leech 29.83 ft - (9092 mm)
Length Perpendicular * 10.49 ft - (3197 mm)
Area * 167.78 ft²
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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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