YachtCodex
Tartan Yachts

Tartan 45

In production
Tartan 45 — photo 1

1 / 10

455ExtAerialH — Tartan Yachts

Summary

45.5 ftLOA64.2 ftAIR DRAFT6.5 ftDRAFT14.1 ftBEAM
Sailing MonohullSail
Length overall
45.5 ft
Beam
14.1 ft
Draft
6.5 ft
Air draft
64.2 ft
Displacement
27,750 lb
Sail area (upwind)
977 ft²
Cabins
2–3
Berths
7

* A standard reference image, not the actual boat — shown to help visualise this model's published dimensions.

Best Suited For

Tags are derived from certified class, length, sail area, accommodation and tankage using the criteria described on the Sources page; an editor may add or remove one.

Sailing Ratios

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

Sail area / displacement

How much sail the boat carries for its weight — its power in light air.

ModestCruiserPerformanceRacing162024Tartan 45: 17.1
  • 17.1· Cruiser
How it is worked out

sail area (ft²) ÷ (displacement as ft³ of seawater)^⅔

published upwind sail area

Displacement / length

How heavy the boat is for its waterline length. Lower is lighter and quicker; higher is steadier and roomier.

UltralightLightModerateHeavyVery heavy100180270350Tartan 45: 201
  • 201· Moderate
How it is worked out

displacement (long tons) ÷ (0.01 × waterline length in ft)³

Ballast ratio

The share of the weight carried in the keel — a rough guide to stiffness, though how deep that weight sits matters as much.

LowModerateHigh3040Tartan 45: 35
  • 35· Moderate
How it is worked out

ballast ÷ displacement × 100

Comfort ratio

Ted Brewer's measure of how gently a boat moves in a seaway. Higher means a slower, easier motion.

LightCoastalModerate offshoreHeavy offshoreVery heavy20304050Tartan 45: 30.4
  • 30.4· Moderate offshore
How it is worked out

displacement (lb) ÷ (0.65 × (0.7 × LWL + 0.3 × LOA) × beam^1.333), lengths in ft

Capsize screening

A guide from the inquiry after the 1979 Fastnet race: below 2 was taken as suited to ocean passages. It ignores hull shape and where the ballast sits.

Below 22 and above2Tartan 45: 1.86
  • 1.86· Below 2
How it is worked out

beam (ft) ÷ (displacement as ft³ of seawater)^⅓

Hull speed

Roughly the speed a displacement hull reaches before it has to climb its own bow wave.

  • 8.4 kn
How it is worked out

1.34 × √(waterline length in ft), in knots

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.

Fuel and water on one scale: a tank twice the height holds twice as much.

  • Fuel140 gal
    Water200 gal

    29 gal of water per berth

Dimensions

LOA
45.5 ft (13.87 m)
Hull length
—
LWL
39.5 ft (12.04 m)
Beam
14.1 ft (4.29 m)
Draft (min)
6.5 ft (1.98 m)
Draft (max)
—
Air draft
64.2 ft (19.58 m)
Displacement
27,750 lb (12,587 kg)
Ballast
9,751 lb (4,423 kg)
Cabins
2–3
Heads
2
Berths
7

Sail Plan

Main sail
—
Jib
—
Genoa
—
Sail area
977 ft² (90.8 m²)
Downwind sail area
1,325 ft² (123.1 m²)
Rig type
—

Engine and Tanks

Engine
—
Engine count
—
Engine manufacturer
—
Propulsion type
—
Fuel capacity
140 gal (530 L)
Fresh water capacity
200 gal (757 L)
Black water capacity
60 gal (227 L)

Construction

Mast material
—
Hull material
—
Deck material
—
Keel type
—
Rudder type
—
Steering wheels
—

Builder's Own Figures

Unit basis
converted from the page's feet-inches, pounds, US gallons and square feet (the site prints no metric figures)
Upwind sail area basis
main & self-tacking jib as printed
Keel basis
stored draft, displacement and ballast are the 'Beavertail' keel
Cabins as printed
2 or 3 cabin options
Downwind sail area basis
main & reacher as printed
Berths as printed
2 CABIN 5; 3 CABIN 7

Figures read fromtartanyachts.com/models/tartan-45/· Dimensions / Accommodations / Tankage / Sail Arearead 9/18/2026

Layouts & Drawings

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

About Tartan Yachts

Semi-custom

American builder of performance cruising sailboats from Painesville, Ohio — six vacuum-infused models from the all-new Tartan 27 to the 16.3-metre Tartan 53, all with self-tacking jibs, carbon rigs and a choice of deep-fin, Beavertail or keel-centreboard underbodies, built in low volume by Ohio craftsmen.

Visit brand page

The Tartan Yachts Range

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

  1. Tartan 5353.5 ft
  2. Tartan 45· this model45.5 ft
  3. Tartan 4039.5 ft
  4. Tartan 3736.5 ft
  5. Tartan 3433.5 ft
  6. Tartan 2727.8 ft

Similar Yachts