Design and Construction
Bianca built the Dynamic 37 around a fiberglass sandwich for both hull and deck, with the keel cast in lead and drawing roughly 6.2 to 6.5 feet depending on load anchor. At 11.45 feet of beam against a 37.4-foot overall length she carries a length-beam ratio of 3.12, a beamy proportion that supports interior volume without pushing her into barge territory. The 4,960-pound lead ballast sits at a 43 percent ballast ratio, and with a displacement of about 11,000 pounds her immersion rate runs near 1,188 pounds per inch — a figure that tells you how steadily she trims as tanks and stores load. The capsize screening value of 1.98 and a Motion Comfort Ratio of 24.0 place her firmly in the stable-family cruiser bracket rather than the featherweight racer end.
Rig and Handling
Her fractional sloop carries 700 square feet of working sail area between main and jib, and the standing and running rig dimensions are thoroughly documented: jib and genoa sheets run 36 feet at a 14 mm diameter, the mainsheet is 90 feet long, and spinnaker sheets run 79 feet, all at the same 14 mm spec anchor. The sailplan and moderate displacement give her a Relative Speed Performance of 88 and a theoretical hull speed of 7.3 knots, with the review classifying her as a moderate racer on the strength of the 222 displacement-length ratio. Under power, the inboard is a Volvo Penta 2003 diesel of 28 horsepower turning a saildrive, good for a flat 7.0 knots engine speed. The wetted surface of about 398 square feet is the physical counterpart to that hull-speed math.
Accommodations
Below, the Dynamic 37 is laid out with three cabins and six berths, a galley, and a toilet facility, all finished in teak like most contemporary production boats anchor. The 80-liter fresh water capacity (21 US gallons) and an equal 80-liter stainless-steel fuel tank define her self-sufficiency envelope — modest by modern long-range standards but consistent with her coastal-cruiser-racer intent. The three-cabin arrangement suggests a forward owner's space plus quarter berths or an aft cabin, a layout that trades some salon width for private sleeping quarters.
Refits and Ownership
Ownership considerations center on the saildrive transmission and the Volvo Penta 2003 — a unit whose rubber diaphragm and leg seals demand disciplined inspection intervals. The 21-gallon fuel and water capacities are fixed by tank size, so any owner extending range must look to jerry cans or aftermarket bladder tanks rather than factory options. The teak interior and teak-deck prevalence in the wider market mean wear surfaces are renewable but labor-intensive.
The Verdict
The Dynamic 37 is a coherent mid-eighties Danish design: beamy enough for real cabin comfort, ballasted and proportioned for steadiness, yet light enough on the displacement-length curve to earn her moderate-racer label. Kjærulff's hull and Bianca's sandwich construction give a platform with a fractional rig that is fully specified for re-rigging. She is not a bluewater maximalist, but as a family cruiser-racer she balances speed and stability without gimmick.
Pros
- Lead fin keel with 43 percent ballast ratio and 1.98 capsize screen
- Fully documented rig dimensions for all sheets at 14 mm
- Three cabins and six berths in a beamy 11.45-foot hull
Cons
- Modest 21-gallon fuel and water capacities
- Saildrive leg on the Volvo Penta 2003 needs close seal maintenance
- Moderate-racer displacement curve limits load-carrying range
