MAGNUM 8.5

About the MAGNUM 8.5

Previously from South Coast Yachts. The molds currently owned by the Magnum Yacht Association. Contact: Paul Jenkins Tel. (03) 9879 1420 e-mail: paul.jenkins8@bigpond.com

The Magnum 8.5 is a lightweight fractional sloop designed by an unknown designer and built by the Magnum Yacht Association, with exactly 100 hulls produced in 1987. Its performance-oriented ratios, including a D/L ratio of 90.65 and SA/D ratio of 22.86, reflect its role as a nimble coastal racer-cruiser rather than a heavy displacement offshore vessel.

Best for:

This boat suits active coastal cruisers and weekend racers who prioritize speed and ease of handling over heavy-weather stability. Its light displacement of 3086.0 lb and fractional rig make it particularly well-suited for single-handers or couples seeking a responsive, easy-to-trailerable package.

Bluewater capability:

With a capsize ratio of 2.21 and a relatively low ballast ratio, the Magnum 8.5 is best suited for protected coastal waters rather than extended bluewater passages. Its light displacement and variable keel options suggest it lacks the heavy motion comfort and structural robustness typically required for serious offshore cruising.

Comparables:

Comparable boats from this era include the Catalina 27 and O'Day 27, which share similar LOA dimensions and fractional sloop rigs. However, the Magnum 8.5 distinguishes itself with a significantly lower displacement and higher sail area-to-displacement ratio, offering more performance at the cost of interior volume and motion comfort.