Design and Construction
Both hull and deck are solid fiberglass, a straightforward construction approach for a boat of this era and scale. Mohnhaupt gave her a fin keel and spade rudder arrangement with a length-to-beam ratio of 2.92, a proportion that ranks her as roomier than 58 percent of comparable sailboat designs. Her displacement-length ratio of 181 places her among what the record calls "moderate racers," and the 4-foot-3 to 4-foot-7 draft dependent on load keeps her able to tuck into shallow marinas. The capsize screening value of 2.30 is below the threshold accepted for ocean racing, a clear signal that she was conceived for sheltered waters rather than bluewater passages indicating that this boat would not be accepted to participate in ocean races.
Rig and Handling
The 770 carries a masthead sloop rig with a reference sail area of 26.2 square meters for mainsail and jib combined. With the ISO 8666 reference sail her sail-area-to-displacement ratio is 19.9, rising to 23.7 with a 135 percent genoa, a figure that credits her with being faster in light wind than 85 percent of similar designs. Her wetted surface of about 18 square meters and theoretical hull speed of 6.0 knots frame a boat that is quick to accelerate in a breeze but physically limited by displacement once she reaches her natural stride. The standing and running rigging follow period norms: halyards at 22.8 meters and 8 mm, sheets around 7.7 to 19.2 meters at 10 mm, with cunningham, kicking strap, and clew outhaul all specified.
Accommodations and Systems
Fresh water capacity is 378 liters and fuel capacity 189 liters, generous stowage for a boat under 26 feet that supports extended weekends aboard. The engine option is an inboard Volvo Penta MD5A diesel rated at 7 horsepower, giving a calculated maximum under-power speed of about 4.8 knots. Her Motion Comfort Ratio of 13.5 is more comfortable than only 21 percent of similar sailboats, so she is no floating settee — the light displacement that aids her speed also keeps the ride lively in a chop.
The Verdict
The Bavaria 770 is a purpose-built early-1980s coastal cruiser-racer whose modest size hides a surprisingly capable light-air sail plan and beamy proportions. She is best understood as a daysailer and weekend coastal camper with limits defined by her capsize screening and comfort numbers rather than by any documented fault.
Pros
- Beamy for her length, roomier than 58 percent of similar designs
- Excellent light-wind performance, quicker than 85 percent of peers under sail
- Shallow enough draft to explore marinas and anchorages a deeper keel cannot reach
- Large water and fuel capacity for a boat of just 25 feet
Cons
- Capsize screening value excludes her from ocean racing and offshore use
- Motion Comfort Ratio below most comparable designs makes for a busy ride
- Small size limits accommodation and storage for anything beyond coastal cruising
