Back to Search
Montgomery 23
Designer: Lyle Hess  ·  Builder: Montgomery Boats (Usa)  ·  First built: 1979
+ Add to Compare
About the Montgomery 23

Designed by respected naval architect Lyle Hess, this compact cruiser represents a thoughtful approach to small boat coastal sailing. Built by Montgomery Boats from 1979 with only twenty hulls completed, the Montgomery 23 has become a relatively rare find in today's used boat market. The boat's most distinctive feature is its swing keel configuration, which reduces draft significantly when raised, making it ideal for exploring shallow waters, beaching, or trailering. This versatility opens up cruising grounds that would be off-limits to deeper-draft vessels. The fiberglass construction and masthead sloop rig provide a traditional sailing experience with modern durability. With a displacement of 3,600 pounds and 1,530 pounds of ballast, the Montgomery 23 offers respectable stability for coastal cruising and weekend adventures. The boat's proportions suggest good sailing manners and adequate interior space for its length. Hess's design philosophy typically emphasized seaworthiness and comfort over pure speed, traits that likely carry through to this design. The limited production run makes finding one challenging, but owners of Lyle Hess designs typically praise their sea-kindly characteristics and solid construction. This boat suits sailors seeking a manageable coastal cruiser with the flexibility of shallow-water capability.

Core Dimensions
LOA (Length Overall) 23.00 ft / 7.01 m
LWL (Waterline Length) 21.83 ft / 6.65 m
Beam 8.00 ft / 2.44 m
Max Draft 4.92 ft / 1.50 m
Min Draft 2.42 ft / 0.74 m
Displacement 3,600.00 lb / 1,633 kg
Ballast 1,530.00 lb / 694 kg
Sail Area (Reported) 249.00 ft² / 23.13 m²
Design & Construction
Hull Type Swing Keel
Rigging Type Masthead Sloop
Construction FG
Designer Lyle Hess
Builder Montgomery Boats (USA)
First Built 1979
Number Built 20
Owner Reviews

No owner reviews yet — be the first to share your experience with this boat.

Known Issues & What to Watch For

No known issues documented for this model yet.

Own or have surveyed a Montgomery 23? Submit a known issue

Performance Ratios
PHRF Rating PHRF (Performance Handicap Racing Fleet) is a national racing handicap measured in seconds per nautical mile. Lower values indicate faster boats. Ratings are sourced from US Sailing's national database (median across 60+ regional fleets).
Under 0 — Ultralight racer0–90 — Performance racer90–150 — Cruiser/racer150–210 — Typical cruiserOver 210 — Heavy/slow cruiser
234
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
17.01
Ballast/Displacement Ballast to Displacement ratio shows what percentage of the boat's total weight is ballast. Higher values generally mean better initial stability and stiffer sail carrying.
30–35% — Typical cruiser35–45% — Stiff performance boatOver 45% — Racing oriented
42.5
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
154.49
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
15.71
Capsize Screening Formula The USHS Capsize Screening Formula estimates offshore capsize risk. Lower is safer — values under 2.0 are considered acceptable for offshore sailing.
Under 2.0 — Safe for offshore2.0–2.2 — Borderline offshoreOver 2.2 — Coastal use recommended
2.09
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. 6.26 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. 624.01 pounds/inch
How It Compares

vs. Com-Pac 23/Iv, Pearson 23, South Coast 23

This boat Similar boats
Dimensions
LOA
Montgomery 23 ★
23.0 ft
Com-Pac 23/Iv
23.0 ft
Pearson 23
23.0 ft
South Coast 23
23.0 ft
LWL
Montgomery 23 ★
21.8 ft
Com-Pac 23/Iv
20.0 ft
Pearson 23
20.0 ft
South Coast 23
17.5 ft
Beam
Montgomery 23 ★
8.0 ft
Com-Pac 23/Iv
8.0 ft
Pearson 23
8.0 ft
South Coast 23
7.3 ft
Displacement
Montgomery 23 ★
3 lbs
Com-Pac 23/Iv
3 lbs
Pearson 23
3 lbs
South Coast 23
3 lbs
Ballast
Montgomery 23 ★
1 lbs
Com-Pac 23/Iv
1 lbs
Pearson 23
1 lbs
South Coast 23
1 lbs
Sail Area
Montgomery 23 ★
249 sq ft
Com-Pac 23/Iv
195 sq ft
Pearson 23
238 sq ft
South Coast 23
246 sq ft
Performance
PHRF Rating (lower = faster)
Montgomery 23 ★
234 s/nm
Com-Pac 23/Iv
Pearson 23
240 s/nm
South Coast 23
270 s/nm
SA / Displacement (higher = more powerful)
Montgomery 23 ★
17.0
Com-Pac 23/Iv
14.7
Pearson 23
16.6
South Coast 23
16.4
Ballast / Disp (higher = stiffer)
Montgomery 23 ★
42.5 %
Com-Pac 23/Iv
35.5 %
Pearson 23
37.1 %
South Coast 23
Comfort Ratio (higher = more comfortable offshore)
Montgomery 23 ★
15.7
Com-Pac 23/Iv
14.3
Pearson 23
16.3
South Coast 23
21.6
Capsize Screening (lower = safer)
Montgomery 23 ★
2.09
Com-Pac 23/Iv
2.20
Pearson 23
2.11
South Coast 23
1.87
Displacement / Length (lower = lighter)
Montgomery 23 ★
154
Com-Pac 23/Iv
172
Pearson 23
195
South Coast 23
Hull Speed
Montgomery 23 ★
6.3 kts
Com-Pac 23/Iv
6.0 kts
Pearson 23
6.0 kts
South Coast 23
5.6 kts
Speed Number (higher = faster)
Montgomery 23 ★
Com-Pac 23/Iv
Pearson 23
2.6
South Coast 23
1.6
Find a Montgomery 23 For Sale