Design and Construction
Both the hull and deck are solid fiberglass, a straightforward construction method for a boat of this age and size. Mohnhaupt gave the 770 a fin keel and spade rudder.
Her length-to-beam ratio is 2.92, making her roomier than 58 percent of comparable sailboat designs. Draft ranges from 4 feet 3 inches to 4 feet 7 inches, depending on load, allowing her to tuck into relatively shallow marinas.
A displacement-length ratio of 181 places the Bavaria 770 among what the record calls “moderate racers.” However, her capsize screening value of 2.30 is below the accepted threshold for ocean racing. That clearly points to a boat conceived for sheltered waters rather than bluewater passages; she would not be accepted to participate in ocean races.
Rig, Performance, and Handling
The 770 carries a masthead sloop rig, with a reference sail area of 26.2 square meters for the mainsail and jib combined. Using the ISO 8666 reference sail, her sail-area-to-displacement ratio is 19.9. With a 135 percent genoa, it rises to 23.7—a figure that rates her as faster in light winds than 85 percent of similar designs.
Her wetted surface is about 18 square meters, and her theoretical hull speed is 6.0 knots. Together, those figures describe a boat that accelerates quickly in a breeze but is physically limited by displacement once she reaches her natural stride.
The standing and running rigging follow period norms. Halyards are specified at 22.8 meters long and 8 mm in diameter, while sheets range from around 7.7 to 19.2 meters and are 10 mm in diameter. A cunningham, kicking strap, and clew outhaul are also specified.
Accommodations and Systems
Fresh-water capacity is 378 liters, while fuel capacity is 189 liters. Those are generous capacities for a boat under 26 feet and support extended weekends aboard, although the boat’s small overall size still limits accommodations and storage.
The engine option is a 7-horsepower inboard Volvo Penta MD5A diesel. Its calculated maximum speed under power is about 4.8 knots.
The Bavaria 770’s Motion Comfort Ratio is 13.5, making her more comfortable than only 21 percent of similar sailboats. She’s no floating settee: the light displacement that helps her performance also gives her a lively ride in a chop.
Verdict
The Bavaria 770 is a purpose-built early-1980s coastal cruiser-racer. Her modest size conceals a surprisingly capable light-air sail plan and beamy proportions. She’s best understood as a daysailer and weekend coastal camper, with limits defined by her capsize screening and comfort figures rather than by any documented fault.
Pros
- Beamy for her length and roomier than 58 percent of similar designs
- Excellent light-wind performance, rated faster than 85 percent of comparable boats under sail
- Shallow enough draft to explore marinas and anchorages that deeper-keel boats can’t reach
- Large water and fuel capacities for a boat of just 25 feet
Cons
- Capsize screening value excludes her from ocean racing and indicates that she was conceived for sheltered waters rather than offshore passages
- Motion Comfort Ratio is below that of most comparable designs, making for a busy ride
- Small size limits accommodations and storage for anything beyond coastal cruising
