CASTLE 650

About the CASTLE 650

Builder contact (2001): Yachtworks 41 Governor Rd Mordialloc, Victoria 3196, phone: 03 9580 6328

The Castle 650 is a compact fractional sloop designed by Steven Douglas and built by Yachtworks in Australia, with a production run of 120 hulls starting in 1980. Despite its small LOA of 21.52 ft and light displacement of 1689.0 lb, it is characterized by a high sail area-to-displacement ratio of 27.13, indicating a performance-oriented design.

Best for:

This boat suits coastal cruisers and day sailors seeking a responsive, easy-to-handle package, as evidenced by the high prevalence of North sails and Quick anchors in owner reports. Its fractional rig and light displacement make it ideal for those prioritizing speed and agility over heavy offshore comfort.

Bluewater capability:

With a capsize ratio of 2.67 and a displacement of 1689.0 lb, the Castle 650 is primarily a coastal cruiser rather than a bluewater vessel, though its variable keel options and robust fractional rig allow for protected offshore passages.

Comparables:

Comparable boats include other 21-foot fractional sloops from the early 1980s, such as the O'Day 23 or Pearson 22, which share similar dimensions and roles. The Castle 650 distinguishes itself with a slightly higher SA/D ratio and Australian build heritage, appealing to buyers looking for a unique alternative to mass-produced American designs.