Delphia 37 Sailboat Review, Specs, and Listings

Approximate drawing

Hover a measurement to read its value

Rig
Fractional Sloop

The Delphia 37 is a midsize cruising monohull designed by Andrzej Skrzat, whose Baltic upbringing helped shape a brief focused on roughwater offshore capability. Delphia Boats builds the 37 at its factory in Poland.

Measurements

Dimensions 01

Length Overall
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Length on deck
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Waterline Length
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Beam
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Draft
6.5 ft
Maximum Headroom
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Air Draft
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Construction & hull 02

Construction
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Hull Type
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Keel Type
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Ballast
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Displacement
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Water Capacity
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Fuel Capacity
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Rig & sails 03

Rigging Type
Fractional Sloop
Mainsail luff
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Mainsail foot
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Foretriangle height
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Foretriangle base
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Forestay Length (estimated)
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Sail Area
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Calculations 04

Sail Area to Displacement Ratio
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Ballast to Displacement Ratio
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Displacement to Length Ratio
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Comfort Ratio
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Capsize Screening Ratio
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Hull Speed
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Design and Construction

The Delphia 37 measures 36 feet 4 inches overall. Its stated beam is 11 feet 10 inches, though a period review lists it as 11 feet 9 inches. Displacement ranges from 12,414 pounds in shoal-draft form to 12,961 pounds for the deep-keel version. Both carry 4,862 pounds of ballast, giving a 39 percent ballast ratio.

The hand-laminated hull is solid fiberglass below the waterline and cored with closed-cell foam above it. A structural grid distributes high rig loads through the hull. Nine 29 mm stainless-steel keel bolts pass through channeled backing plates into the cast-iron keel, a detail noted as evidence of the boat’s ruggedness.

Period reviews also noted careful systems work. Hoses are double-clamped and routed to avoid chafe, the through-hulls are bronze, and wiring runs through conduits to numbered terminals with heat-shrink protection. The bilge sump is rather shallow.

Rig and Sailing Performance

The 9/10 fractional, double-spreader rig sits over a fin keel and deep spade rudder, a combination credited with giving the boat its handling character. A large, fully battened mainsail and furling jib provide 779 square feet of working sail.

Test sailors found the Delphia 37 a delight to sail, recording tacking angles of less than 90 degrees. They also noted pronounced directional stability: one reviewer could leave the wheel unlocked and walk forward while the boat held a close-hauled groove.

With its 11-foot 9-inch beam as reported in the review and its high ballast-to-displacement ratio, the Delphia 37 is a relatively stiff boat. The 6-foot 4-inch deep-keel option promises even better windward performance than the 5-foot 1-inch shoal draft reviewed.

Cockpit and Deck

Teak covers the floor and seats of the self-draining cockpit. The primary winches sit just aft of the helm, while a folding helm seat provides access to the stern platform.

Forward, a deep anchor locker holds a standard windlass with a remote pendant. Port and starboard lockers separate deep stowage from a shallow, quick-access space for dock lines and boathooks. Reviewers considered the deck and cockpit suitable for daysailing, local cruising, or offshore use.

The foredeck has one notable weakness: there are no handholds, leaving crew to rely solely on the toerail and lifelines to stay aboard.

Accommodations

The saloon is arranged around a drop-leaf table, with seating for six on an L-shaped starboard settee and a straight port settee. Seven opening hatches provide ventilation, and the navigation station offers clean access to the electrical panels. The tested boat had oak joinery instead of the standard light mahogany.

The L-shaped galley includes a deep stainless-steel sink, a large refrigerator, a Corian worktop, and a gimbaled twin-burner stove.

Forward, the V-berth is quite pointy and may feel tight for two people. Buyers could choose between two- and three-cabin layouts. The two-cabin layout trades the third berth for a larger head, a better navigation station, and a deeper port cockpit locker than the three-cabin version.

Verdict

The Delphia 37 is a thoughtfully engineered Baltic cruiser. It’s stiff under sail, directionally stable, well wired, and generously ventilated. Its cockpit is suited to duties ranging from daysailing to offshore use. The pointy V-berth, shallow bilge sump, and lack of foredeck handholds are the principal trade-offs in an otherwise polished package.

Pros

  • Stiff, directionally stable hull
  • Deep- and shoal-keel options
  • Rugged keel-bolt and structural-grid arrangement
  • Bronze through-hulls
  • Airy saloon and practical L-shaped galley
  • Wiring routed through conduits to numbered, heat-shrink terminals

Cons

  • No foredeck handholds
  • Shallow bilge sump
  • Pointy forward berth can feel tight for a couple

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