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Deltania 28 S
 ·  Builder: Deltania Yachts (Ger)  ·  First built: 2006
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About the Deltania 28 S

German builder Deltania Yachts introduced this versatile 29-footer in 2006, targeting sailors who value both performance and practicality. The swing keel design represents the boat's most distinctive feature, allowing access to shallow waters while maintaining respectable sailing characteristics when fully deployed at 5.58 feet. With a fiberglass construction and fractional sloop rig carrying 419.79 square feet of sail area, the Deltania 28 S delivers a sail area-to-displacement ratio of 20.02, positioning it firmly in performance cruiser territory. This moderate-to-high ratio suggests spirited sailing performance without sacrificing stability or comfort. The substantial ballast-to-displacement ratio of 36% provides reassuring stability, while the capsize screening formula of 2.08 indicates good offshore capability for a boat this size. The 9.51-foot beam creates a spacious interior relative to the boat's length, making it suitable for extended coastal cruising or weekend adventures. The swing keel configuration particularly appeals to sailors exploring European inland waterways or shallow coastal areas where traditional deep-draft boats cannot venture. The outboard rudder design typically offers responsive steering and simplified maintenance compared to skeg-hung alternatives. This German-built sailboat represents a thoughtful balance between performance and versatility, ideal for sailors seeking adventure in varied cruising grounds.

Core Dimensions
LOA (Length Overall) 29.53 ft / 9.00 m
Beam 9.51 ft / 2.90 m
Max Draft 5.58 ft / 1.70 m
Min Draft 1.31 ft / 0.40 m
Displacement 6,172.94 lb / 2,800 kg
Ballast 2,226.67 lb / 1,010 kg
Sail Area (Reported) 419.79 ft² / 39.00 m²
Headroom 6.07 ft / 1.85 m
Design & Construction
Hull Type Swing keel w/outboard rudder
Rigging Type Fractional Sloop
Construction FG
Builder Deltania Yachts (GER)
First Built 2006
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Performance Ratios
SA/Displacement Sail Area to Displacement ratio measures how much sail power a boat has relative to its weight. Higher values mean more performance and speed.
Under 14 — Heavy cruiser, slow14–18 — Cruising sailboat18–22 — Cruiser/racerOver 22 — Performance racer
20.02
Displacement/Length Displacement to Length ratio measures how heavy a boat is relative to its waterline length. Lower values mean a lighter, faster boat.
Under 100 — Ultralight racer100–200 — Light cruiser/racer200–300 — Moderate cruiser300–400 — Heavy cruiserOver 400 — Very heavy
174.26
Comfort Ratio Ted Brewer's Comfort Ratio predicts how comfortable a boat will feel in offshore conditions. Higher values mean a steadier, more comfortable motion in a seaway.
Under 20 — Uncomfortably rough20–30 — Acceptable coastal30–40 — Good offshore comfortOver 40 — Very comfortable offshore
17.85
Hull Speed Hull Speed is the theoretical maximum speed of a displacement hull, calculated from waterline length. Most cruising sailboats reach this speed in moderate conditions. 6.71 kn
Pounds/Inch Immersion Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline. 5.12 pounds/inch
Rig Dimensions
Mast Height (DWL) 36.09 ft / 11.00 m
Engine & Accommodations
Engine Type Outboard
LOD 27.89 ft / 8.50 m
How It Compares

vs. Com-Pac 27/2, Etap 30, Etap 30Cq

This boat Similar boats
Dimensions
LOA
Deltania 28 S ★
29.5 ft
Com-Pac 27/2
29.6 ft
Etap 30
29.6 ft
Etap 30Cq
29.5 ft
LWL
Deltania 28 S ★
Com-Pac 27/2
25.0 ft
Etap 30
25.1 ft
Etap 30Cq
27.7 ft
Beam
Deltania 28 S ★
9.5 ft
Com-Pac 27/2
10.0 ft
Etap 30
10.3 ft
Etap 30Cq
11.0 ft
Displacement
Deltania 28 S ★
6 lbs
Com-Pac 27/2
7 lbs
Etap 30
7 lbs
Etap 30Cq
8 lbs
Ballast
Deltania 28 S ★
2 lbs
Com-Pac 27/2
2 lbs
Etap 30
3 lbs
Etap 30Cq
2 lbs
Sail Area
Deltania 28 S ★
419 sq ft
Com-Pac 27/2
365 sq ft
Etap 30
403 sq ft
Etap 30Cq
439 sq ft
Performance
SA / Displacement (higher = more powerful)
Deltania 28 S ★
20.0
Com-Pac 27/2
15.4
Etap 30
16.3
Etap 30Cq
17.4
Comfort Ratio (higher = more comfortable offshore)
Deltania 28 S ★
17.9
Com-Pac 27/2
20.1
Etap 30
20.7
Etap 30Cq
18.3
Capsize Screening (lower = safer)
Deltania 28 S ★
Com-Pac 27/2
2.06
Etap 30
2.07
Etap 30Cq
2.19
Displacement / Length (lower = lighter)
Deltania 28 S ★
174
Com-Pac 27/2
211
Etap 30
Etap 30Cq
Hull Speed
Deltania 28 S ★
6.7 kts
Com-Pac 27/2
6.7 kts
Etap 30
6.7 kts
Etap 30Cq
7.1 kts
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