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Dehler 34vsHanse 348

Dehler 34 is 1 ft longer than Hanse 348 (3%). Dehler 34 carries the most sail for its weight (SA/D 20, Performance); Hanse 348 the least (17.4, Cruiser). Only Dehler 34 meets the rule for Performance Cruising.

Anyone with the link sees this comparison.

Key differences

Worked out from the published figures below — arithmetic, not opinion.

At a glance

Dark icons are the standard layout; faded ones are what the larger layout adds.

Length : beam is length divided by beam — the higher it is, the slimmer the hull. Multihulls read low by nature.

A figure marked with a quote mark was read from the builder's page. Open it for the exact line, the page and the date.

Model
Dehler 34 exterior

Dehler

Dehler 34
Hanse Hanse 348
Overview
BrandDehlerHanse
ModelDehler 34Hanse 348
GenerationUnknownUnknown
Hull typeSailing MonohullSailing Monohull
PropulsionSailSail
Production statusIn productionIn production
Production start yearUnknownUnknown
Production end yearUnknownUnknown
DesignerUnknownjudel / vrolijk & co
Dimensions
LOA35.1 ft34.1 ft
Hull length33.8 ft32.8 ft
Beam11.8 ft11.6 ft
Draft5.1 ft–6.9 ft5.2 ft–6.5 ft
Displacement13,228 lb13,889 lb
Accommodation
Cabins2–32–3
HeadsUnknownUnknown
BerthsUnknownUnknown
Performance & Rig
Main sail404 ft²366 ft²
Jib296 ft²236 ft²
GenoaUnknownUnknown
Upwind sail area700 ft²630 ft²
Downwind sail area969 ft²944 ft²
Engine power21 hp–29 hp21 hp–29 hp
Engine count11
Materials
Hull materialUnknownUnknown
Deck materialUnknownUnknown
Mast materialUnknownUnknown
Keel typefixed keel (standard, competition, shallow keel options)Unknown
Rudder typeUnknownUnknown
Sources

Figures read fromdehler.com/api/get-data· yachts-specyficationsread 9/19/2026

12 of 13 figures here carry the builder's own words

Size, to scale

Each boat's published length and beam seen from above, and its mast height and draft from the side, all drawn on one scale.

From above — length × beam
0 ft10 ft20 ft30 ftDehler 34: 35.1 ft × 11.8 ftHanse 348: 34.1 ft × 11.6 ftDehler 3435.1 ft × 11.8 ftHanse 34834.1 ft × 11.6 ft

Outlines are schematic; the dimensions are the builder's.

From the side — height above and depth below the water
WaterlinePerson, 5.9 ftDehler 34: 53.4 ft / 6.9 ft53.4 ft6.9 ftDehler 34Hanse 348: 53.3 ft / 6.5 ft53.3 ft6.5 ftHanse 348

Drawings side by side

Each boat's layouts, profiles and sail plans as its builder published them. Step through each column to line up the drawings you want to compare.

No drawings collected yet for Hanse 348.

Speed, power & tanks

What the builders publish about how fast, how strong and how far — each figure on one scale for every boat.

Tanks

One scale per liquid across every boat: a tank twice the height holds twice as much.

  • Dehler 34

    Fuel42 gal
    Water55 gal

  • Hanse 348

    Fuel42 gal
    Water61 gal

How they sail, in numbers

Classic yacht-design ratios worked out from each builder's published figures. They compare boats; they don't grade them.

Sail area / displacement

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

ModestCruiserPerformanceRacing162024Dehler 34: 20.0Hanse 348: 17.4
  • Dehler 3420.0· Performance
  • Hanse 34817.4· Cruiser
How it is worked out

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

Dehler 34: published upwind sail area

Hanse 348: 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 heavy100180270350Dehler 34: 189Hanse 348: 202
  • Dehler 34189· Moderate
  • Hanse 348202· 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.

LowModerateHigh3040Dehler 34: 35
  • Dehler 3435· Moderate
  • Hanse 348not published: ballast
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 heavy20304050Dehler 34: 23.2Hanse 348: 25.2
  • Dehler 3423.2· Coastal
  • Hanse 34825.2· Coastal
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 above2Dehler 34: 2.00Hanse 348: 1.94
  • Dehler 342.00· 2 and above
  • Hanse 3481.94· 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.

  • Dehler 347.5 kn
  • Hanse 3487.5 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.

Worth adding to this comparison

The boats most like the ones above, by hull form, size and use.