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Coronado 45
Designer: William Tripp Jr.  ·  Builder: Coronado Yachts  ·  First built: 1974
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About the Coronado 45

Built during the late 1970s by Coronado Yachts, this 45-foot cruising sailboat represents the builder's ambitious entry into the larger yacht market. While detailed specifications remain scarce, the Coronado 45 was positioned as a serious coastal cruiser designed for comfortable extended voyaging. Coronado Yachts earned recognition for producing well-built fiberglass boats with practical layouts, and the 45 continued this tradition on a grander scale. The boat features traditional cruising proportions with moderate beam and displacement characteristics typical of late-1970s design philosophy, emphasizing seaworthiness over pure performance. The Coronado 45 appeals to sailors seeking a substantial cruising platform for coastal exploration and occasional offshore passages. Its spacious interior accommodations make it suitable for extended live-aboard situations or family cruising adventures. The boat's reputation centers on solid construction quality and sensible design choices rather than cutting-edge innovation. Today, these vessels attract budget-conscious cruising enthusiasts looking for a capable blue-water boat without modern premium pricing. While not as well-documented as some contemporaries, the Coronado 45 offers good value for sailors prioritizing space, comfort, and proven seaworthiness over racing performance or modern amenities.

Core Dimensions
LOA (Length Overall) 45.25 ft / 13.79 m
LWL (Waterline Length) 34.42 ft / 10.49 m
Beam 12.33 ft / 3.76 m
Max Draft 4.30 ft / 1.31 m
Displacement 25,000.00 lb / 11,340 kg
Ballast 12,300.00 lb / 5,579 kg
Sail Area (Reported) 812.00 ft² / 75.44 m²
Design & Construction
Hull Type Fin with rudder on skeg
Rigging Type Masthead Sloop
Construction FG
Designer William Tripp Jr.
Builder Coronado Yachts
First Built 1974
Last Built 1975
Related Sailboats ["Columbia 45" · "Lancer 45" · "Morgan 45 4" · "Endeavour 43" · "Cal 46 Iii 1975"]
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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
 111
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
 15.26
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
 36.15
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
 1.69
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. 7.86
S# (Speed Number) The Speed Number (S#) is a quick performance index. Higher values indicate a faster, more powerful design relative to its size.
Under 3.0 — Slow cruiser3.0–5.0 — Average cruiser5.0–7.0 — Performance cruiserOver 7.0 — Racer
 1.81
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. 1.0
Rig Dimensions
I (Foretriangle Height) 52.1
J (Foretriangle Base) 18.24
P (Mainsail Luff) 45.0
E (Mainsail Foot) 15.0
SA Fore 475.15
SA Main 337.5
How It Compares

vs. Endeavour 43, Lancer 45, Morgan 45 4

This boat Similar boats
Dimensions
LOA
Coronado 45 ★
45.3 ft
Endeavour 43
45.3 ft
Lancer 45
45.0 ft
Morgan 45 4
45.3 ft
LWL
Coronado 45 ★
34.4 ft
Endeavour 43
35.0 ft
Lancer 45
37.3 ft
Morgan 45 4
36.8 ft
Beam
Coronado 45 ★
12.3 ft
Endeavour 43
14.0 ft
Lancer 45
13.8 ft
Morgan 45 4
13.4 ft
Displacement
Coronado 45 ★
25 lbs
Endeavour 43
33 lbs
Lancer 45
24 lbs
Morgan 45 4
22 lbs
Ballast
Coronado 45 ★
12 lbs
Endeavour 43
12 lbs
Lancer 45
7 lbs
Morgan 45 4
9 lbs
Sail Area
Coronado 45 ★
812 sq ft
Endeavour 43
—
Lancer 45
907 sq ft
Morgan 45 4
902 sq ft
Performance
PHRF Rating (lower = faster)
Coronado 45 ★
111 s/nm
Endeavour 43
132 s/nm
Lancer 45
162 s/nm
Morgan 45 4
—
SA / Displacement (higher = more powerful)
Coronado 45 ★
15.3
Endeavour 43
—
Lancer 45
17.5
Morgan 45 4
18.2
Ballast / Disp (higher = stiffer)
Coronado 45 ★
—
Endeavour 43
36.4 %
Lancer 45
29.2 %
Morgan 45 4
—
Comfort Ratio (higher = more comfortable offshore)
Coronado 45 ★
36.2
Endeavour 43
—
Lancer 45
28.6
Morgan 45 4
27.8
Capsize Screening (lower = safer)
Coronado 45 ★
1.69
Endeavour 43
—
Lancer 45
1.91
Morgan 45 4
1.91
Displacement / Length (lower = lighter)
Coronado 45 ★
—
Endeavour 43
343
Lancer 45
207
Morgan 45 4
—
Hull Speed
Coronado 45 ★
7.9 kts
Endeavour 43
—
Lancer 45
8.2 kts
Morgan 45 4
8.1 kts
Speed Number (higher = faster)
Coronado 45 ★
1.8
Endeavour 43
—
Lancer 45
2.7
Morgan 45 4
2.8
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