Design and Construction
Both hull and deck are solid fibreglass, and the boat carries a fin keel with a draft that runs roughly 5.25 to 5.55 feet depending on load, which lets her into most marinas. At 7,200 pounds displacement with 2,899 pounds of lead ballast, her ballast ratio is 40 percent — higher than 46 percent of comparable designs — and her length-to-beam ratio of 3.00 makes her beamier than 62 percent of similar boats, a proportion that reads as a roomy midsection rather than a narrow racer's hull. The wetted surface is about 279 square feet, and the immersion rate of 849 pounds per inch speaks to a hull that settles predictably under stores and crew.
Rig and Handling
The Endeavour 30 is a masthead sloop carrying a sail-area-to-displacement ratio of 18.44, which places her among moderate racers on the displacement-length scale of 234; 62 percent of similar designs are heavier. Her theoretical hull speed is 6.6 knots. The standing and running rigging follow period masthead conventions, with jib and genoa sheets around 30.5 feet long in half-inch diameter and a mainsheet of about 76 feet, while a spinnaker sheet runs 67 feet. The capsize screening value is 2.11, a figure that would bar her from ocean-race acceptance, and her Motion Comfort Ratio of 19.4 places her as more comfortable than just 27 percent of similar sailboats — a firm signal that she is built closer to the lively end of the scale than the sofa end.
Accommodations
The beamy hull form implied by the 3.00 length-to-beam ratio gives the Endeavour 30 more interior volume than 62 percent of her peers on that measure, though the sources stop short of naming berth counts or cabin layout. What can be said is that the design brief favored space over ocean-racing stiffness, and the 40 percent ballast ratio paired with moderate displacement supports a boat balanced for coastal cruising with a turn of speed.
Refits and Ownership
With fewer than 100 built, the Endeavour 30 remains a small class. Owners working on these boats will find period-standard masthead rigging dimensions useful for replacing sheets, and the moderate draft makes yard handling straightforward in most coastal marinas.
The Verdict
The Endeavour 30 is a modest, beamy coastal sloop from the early 1970s whose numbers mark her as a moderate racer with more space than most similar boats but less comfort in a seaway than the majority of her class. She is a straightforward fibreglass boat for a sailor who wants an easily marina'd, reasonably quick weekender without offshore ambitions.
Pros
- Beamy hull gives more interior space than 62 percent of comparable designs
- Moderate draft fin keel eases marina access
- Solid fibreglass hull and deck construction
- Higher ballast ratio than nearly half of similar sailboats
Cons
- Capsize screening bars ocean-race participation
- Motion Comfort Ratio lower than 73 percent of similar designs
- Fewer than 100 built, limiting class support and parts interchange











