Sirius 310 DS

Summary

Sailing Ratios

Classic yacht-design ratios worked out from the builder's published figures, each shown against the bands designers read it by.

Most builders publish a light displacement. The ratios were defined on a loaded boat, so every boat here reads a little lighter than a surveyor's figure would — all alike, which keeps them comparable.

Tanks

What the builder publishes about how fast, how strong and how much the boat carries.

Dimensions

LOA

30.5 ft (9.3 m)

Hull length

—

LWL

28.1 ft (8.55 m)

Beam

11.1 ft (3.38 m)

Draft (min)

2.5 ft (0.75 m)

Draft (max)

6.6 ft (2 m)

Air draft

—

Displacement

13,889 lb (6,300 kg)

Ballast

—

Cabins

—

Heads

1

Berths

2–4

Sail Plan

Main sail

—

Jib

—

Genoa

—

Sail area

—

Downwind sail area

—

Rig type

—

Engine and Tanks

Engine

29 hp (Volvo Penta)

Engine count

1

Engine manufacturer

Volvo Penta

Propulsion type

saildrive

Fuel capacity

26 gal (100 L)

Fresh water capacity

45 gal (170 L)

Black water capacity

18 gal (70 L)

Construction

Mast material

—

Hull material

hand-laid GRP, one-piece hull moulding with vinyl ester gelcoat

Deck material

—

Keel type

—

Rudder type

—

Steering wheels

—

Builder's Own Figures

Interior

custom-built for each owner; build time four to six months

Engine

Volvo Penta diesel D1-30, 21 kW (29 HP), saildrive

Tanks

standard tanks; larger tanks optional (the page prints 'from … upwards')

Keels

Single fin: 1.80 m (Standard) 1.75 / 1.35 / 1.15 m (Optional) Twin keel (optional): 1.25 m Swing keel (optional): 0.75 – 2.00 m

Beam at waterline

3.00 m

Layouts

14 standard layouts in 4-, 3- and 2-berth versions, all with the raised saloon

Ballast

2.4 t

Draught basis

range over the keel options printed (swing keel raised to the deepest option)

Status

currently not in production, per the builder's page

Displacement basis

as printed, no load stated

Layouts & Drawings

4 drawings from the builder's page: general arrangement, sail plan, profile.

• 

  310_4_Kojen_Standard — Sirius-Werft

• 

  310_3_Kojen_Bibliothek — Sirius-Werft

• 

  310_for2_Standard — Sirius-Werft

• 

  310_4_Kojen_Dusche — Sirius-Werft

About Sirius Yachts

Semi-custom

Family-owned yard in Plön, northern Germany, building hand-made deck-saloon cruising sailboats since 1971 — the Sirius 35 DS and 40 DS, each with a custom interior and a choice of fin, twin or lifting keel.

Sirius Yachts describes itself as boats 'built by craftsmen, with love, since 1971', from the family-owned boat builder that invented the phrase 'deck-saloon'. From its German yard it offers a range of go-anywhere deck-saloon sailboats with hand-crafted, custom-built interiors in mahogany, each available with a single fin keel, a lifting keel or twin keels, and no two yachts from the factory are identical. The yard says it brings nearly half a century of experience building deck-saloon yachts and the experience of more than 650 owners to each new boat: it works through hundreds of design decisions with the buyer — from the rig and sailcloth to the reading lights in the master cabin, and galley drawers made to fit the owner's own cookware — before production begins. The build then takes four to six months; most owners visit the yard several times, receive regular progress pictures by email, and can leave their cutlery, crockery and glassware with the yard so that its storage is made to measure.

The Sirius Yachts Range

Every model Sirius Yachts publishes, by length — where this one sits in the range.

1. Sirius 40 DS42.3 ft
2. Sirius 35 DS34.8 ft
3. Sirius 310 DS· this modelDiscontinued30.5 ft

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