Design and Construction
The Grand Soleil 45 has a solid fiberglass hull, and the yard offered different keel alternatives during the production run. With the fin keel fitted, draft ranges from about 7.22 to 7.52 feet depending on load, restricting the boat to major marinas. An unknown keel variant draws more, at roughly 8.30 to 8.60 feet.
Displacement is 24,250 pounds, including 9,479 pounds of lead ballast. That gives a ballast ratio of 37 percent, which helps explain the boat’s composure. The waterline length is 35.63 feet, beam is 13.62 feet, and the length-to-beam ratio is 3.25.
A displacement-length ratio of 239 places the Grand Soleil 45 among what one reference categorizes as moderate racers rather than heavy-displacement cruisers. Wetted surface is about 581 square feet, while an immersion rate of 1,686 pounds per inch indicates how heavily she settles with added load.
Rig, Performance, and Handling
The Grand Soleil 45 carries a masthead sloop rig with a reference sail area of 936 square feet. Her sail-area-to-displacement ratio is 17.9 using the ISO reference sail and 21.3 with a 135 percent genoa. Paired with the displacement-length ratio of 239, those figures describe a boat that accelerates readily without being a featherweight.
The capsize screening value is 1.88, which, by the standard formula alone, would admit the boat to ocean races. The theoretical displacement-hull speed is 8.0 knots, with a calculated maximum near 7.1. A Motion Comfort Ratio of 30.2 completes the picture of a stiff, settled sea boat.
Standing and running rigging dimensions are fully specified. The main, jib, and spinnaker halyards are each 134.7 feet long and 14 mm in diameter. Jib and genoa sheets are 44.1 feet of 5/8-inch line, while the spinnaker sheets are 97 feet. The mainsheet is 110.2 feet of 5/8-inch line.
Accommodations and Tankage
The Grand Soleil 45 provides 6 to 8 berths. Her 13.62-foot beam and berth count give her the interior volume for a genuine cruising program without barge-like proportions.
Fresh-water capacity is 100 US gallons, while diesel capacity is 52 gallons. A single 62-horsepower Yanmar provides auxiliary power. The tankage suits the boat’s moderate-racer brief rather than long-range expedition use.
Verdict
The Frers Grand Soleil 45 is a considered example of the late-1980s collaboration between Cantiere del Pardo and Germán Frers. This 45-foot masthead sloop balances racer and cruiser through a 37 percent ballast ratio, a displacement-length ratio of 239, and a sail plan that rewards clean trim.
She’s neither a lightweight nor a slug. Her fully specified rigging lengths also reflect a boat engineered to a standard rather than approximated.
Pros
- Lead fin keel with documented keel alternatives for draft flexibility
- Ballast ratio of 37 percent and capsize screening value of 1.88 suit offshore passages
- 6 to 8 berths, 100 US gallons of water, and 52 gallons of fuel support real cruising
- Fully specified rigging dimensions simplify replacement and upgrade planning
Cons
- Fin-keel draft of 7.22 to 7.52 feet limits marina access to major facilities
- The moderate-racer displacement-length ratio of 239 trades some load-carrying ability for performance





