Sandstream 820 Information, Review, Specs

Sailing Performance & Handling

The Sandstream 820 is characterized by a high ballast-to-displacement ratio, often cited near 50%, which provides a level of stiffness and "big boat" feel rarely found in 27-footers. This high ratio, combined with a relatively deep fin keel and a spade rudder, allows the boat to track well and maintain composure when the breeze freshens. According to technical assessments of the Maurice Edel hull, the boat features a displacement-length ratio of approximately 195, placing it firmly in the "moderate racer/cruiser" category.

Under sail, the masthead rig is simple to tune and provides a powerful enough sail plan to keep the boat moving in light air, though its true strength lies in its stability. The boat is notably beamier than many of its contemporaries, with a length-to-beam ratio of approximately 2.88, providing a stable platform for family cruising. While it is not a dedicated light-air drifter, it excels in moderate coastal conditions where its predictable heeling and responsive tiller steering make it an approachable vessel for intermediate sailors.

Interior Comfort & Variations

The defining feature of the Sandstream 820—and the primary reason for its enduring popularity on the used market—is its interior volume. Maurice Edel was a pioneer in optimizing fiberglass for interior space, and the 820 was one of the first production boats of this size to offer a genuine aft cabin. This layout provides a degree of privacy for two couples or a family that was virtually unheard of in the 27-foot class in the early 1980s.

The main salon is bright and airy, often featuring the light wood trim and molded liners typical of the period. The galley is functional for weekend trips, and the generous beam allows for comfortable settee seating. In addition to the standard 820, Sandstream produced the Sandstream 665 (based on the Edel 665/6.6) and the Sandstream 26. The 26 and 820 are often discussed interchangeably in Canadian brokerage circles, as the "26" was sometimes used as a marketing designation for the 8.2-meter hull to better align with the imperial measurements common in North American marinas. More details on the design's French origins can be found on the Edel 665 Wikipedia page, which chronicles the Maurice Edel designs that Sandstream brought to Canada.

Known Issues & Buyer’s Checklist

Prospective buyers of a Sandstream 820 should focus their inspection on the specific construction methods of the 1980s Ontario factory.

• Deck Core Integrity: Like many boats from this era, the 820 uses a balsa-cored deck. Inspect all deck hardware—especially stanchion bases and the mast step—for signs of water intrusion or "sponginess," which indicates core rot.
• Keel-to-Hull Joint: Given the high ballast ratio (heavy keel), the "smile" at the leading edge of the keel-to-hull joint should be checked for signs of movement or structural fatigue, especially if the boat has a history of groundings in the Great Lakes.
• Metric vs. Imperial Hardware: Because the molds and design originated in France, some original hardware may be metric. While most Sandstream boats were fitted with North American components, owners occasionally encounter odd-sized fittings during repairs.
• Rigging Age: Many of these boats still carry their original 1980s masthead rigging. A thorough swage and shroud inspection is mandatory, as the 820’s stiffness allows for high rig tension that can stress aging wire.

Community & Resources

While Sandstream Yachts is no longer in operation, owners of these boats often find a home within the larger community of Edel enthusiasts. Because the boats are structurally identical to their French counterparts, the Association des Propriétaires de Voiliers Edel (Edel Sailboat Owners Association) serves as a primary technical resource for drawings and original specifications, though much of the documentation is in French.

The Verdict

The Sandstream 820 remains a hidden gem for sailors seeking maximum interior utility in a trailer-manageable or slip-friendly 27-foot package. Its French pedigree gives it a level of design flair and performance that distinguishes it from more utilitarian Canadian builds of the same period.

Pros:

• Innovative aft cabin layout provides exceptional privacy for its size.
• Stiff and stable performance due to a high 50% ballast ratio.
• Fiberglass construction that remains manageable for DIY owners.

Cons:

• Limited production numbers make finding parts or specific Sandstream documentation difficult.
• Typical 1980s "cored deck" maintenance requirements.
• The high beam-to-length ratio can make it feel slightly slower in light-air racing compared to narrower pure-bred racers.