Telstar 8 Information, Review, Specs

Telstar 8 Drawing
Make
Telstar
Model
8
Builder
Sandwich Yacht
Designer
Tony Smith
Number Built
200
Production Year(s)
1970 - 1981

The Telstar 8m represents a pivotal moment in multihull history, marking the final evolution of the original folding trimaran line designed by British naval architect Tony Smith before his relocation to the United States. Built primarily by A.J.S. Sandwich Yacht Construction in the United Kingdom between 1979 and 1981, the 8m was a refined successor to the highly successful Telstar 26. As documented in historical overviews by Cruising World, the Telstar series was born from Smith’s desire to prove that a small multihull could combine high-speed performance with genuine cruising comfort. Approximately 300 units were produced across the various iterations of the 26 and 8m models, solidifying the Telstar as one of the most prolific production trimarans of its era.

The Telstar 8m shares its hull DNA with the Telstar 26 MK3, often being described as the "metric" version for the European market, though it featured subtle improvements in layup and rig. The model line also includes a rare 35-foot variant and the much later, modern redesign known as the Telstar 28, which was produced in Annapolis by Performance Cruising Inc. following a decades-long hiatus.

Sailing Performance & Handling

The Telstar 8m is celebrated for a "dinghy-like" responsiveness that is rare in cruising vessels of this size. Unlike many multihulls of the 1970s that struggled to tack through the eye of the wind, Smith designed the Telstar with a deep, lifting centerboard and a fine-entry central hull that allows it to point effectively. Its trimaran configuration provides exceptional initial stability; while monohulls of similar length begin to heel significantly in a breeze, the Telstar remains relatively flat, significantly reducing crew fatigue.

Performance reports from the period and later retrospective reviews by Practical Sailor highlight that the 8m can easily exceed 10 knots on a reach, with sustained bursts of 15 knots possible in ideal conditions. Because the boat is exceptionally light—displacing roughly 3,000 lbs—it is highly sensitive to weight. Overloading the boat with heavy cruising gear can noticeably degrade its ability to "plane" and its performance in light air. The lifting centerboard and kick-up rudder also give the Telstar 8m a remarkably shallow draft of approximately 1.5 feet, allowing it to navigate coastal shallows or be beached for maintenance.

Interior Comfort & Variations

For a 26-foot multihull, the Telstar 8m offers a surprisingly functional interior, largely due to the "flare" of the central hull which provides approximately 6 feet of headroom in the main saloon. The layout typically features a V-berth forward, a central dinette that converts into a double berth, and a compact galley and navigation station. While the interior is narrow compared to a modern monohull, the sense of space is augmented by the massive "ama" (outrigger) decks, which provide vast areas for lounging when at anchor.

The 8m was produced in two primary versions: the standard cruiser and the Telstar 8m/E. The 'E' (Efficiency) version featured a taller rig and a lighter laminate, catering to sailors focused on club racing or high-latitude coastal hopping. Interior materials often reflect the era of production, utilizing a mix of molded GRP liners and teak trim, though many surviving examples have been heavily customized by owners to modernize the spartan original aesthetics.

The Telstar’s reputation for seaworthiness was cemented early in the model’s history when designer Tony Smith and his wife Sue crossed the Atlantic in a Telstar 26, proving the design could handle blue-water conditions despite its trailerable size. This voyage is frequently cited in Sail Magazine and other nautical publications as a benchmark for the "pocket cruiser" category. The boat’s ability to fold its outriggers—originally an "origami" folding method before the rotary-pivot system of the later 28 model—made it a favorite for "YouTube-era" restorations and adventurous coastal explorers who value the ability to trailer their home to distant cruising grounds.

Known Issues & Buyer’s Checklist

Prospective buyers of a Telstar 8m should focus their inspection on the structural integrity of the folding mechanism and the core materials.

  • Hinge and Pivot Points: The early Telstar models utilize massive metal hinges to fold the amas. These should be inspected for stress cracks in the surrounding fiberglass and signs of galvanic corrosion in the hardware.
  • Core Moisture: Like many boats of this era, the Telstar used a sandwich construction (often foam or balsa) for the decks and amas. Spongy sections on the ama decks or near the mast step are common indicators of delamination or water ingress.
  • Rudder and Transom Stress: The kick-up rudder system is a high-stress point. Check the transom for spider-webbing or reinforcement repairs, as the leverage of the rudder in heavy weather can tax the original GRP layup.
  • Rigging Tension: Because the shrouds are attached to the amas on some early versions, any flexing in the crossbeams can affect rig tension. Verify that the boat holds its tune both in "expanded" and "folded" configurations.

Community & Resources

The Telstar 8m benefits from a dedicated community of multihull enthusiasts. The Telstar Owners Association (TOA) remains a primary technical resource, offering archives of original builder blueprints and advice on the specific engineering challenges of the folding mechanism. Additionally, the Multihull Offshore Cruising and Racing Association (MOCRA) often features Telstar 8m entries in its handicap racing events, providing a wealth of performance data for owners looking to optimize their sail plans.

The Verdict

The Telstar 8m remains a standout choice for sailors who refuse to choose between the speed of a multihull and the trailerability of a small monohull. While it requires a vigilant eye regarding its aging sandwich construction, its performance-to-cost ratio is difficult to beat in the used market.

Pros:

  • Impressive speed potential, capable of 15 knots in the right hands.
  • Exceptional shallow-water capability with the board and rudder raised.
  • Standing headroom in a 26-foot trailerable boat.
  • Stable, flat sailing platform compared to heeling monohulls.

Cons:

  • Lightweight construction is susceptible to core moisture and delamination over time.
  • Interior volume is narrow and can feel cramped with more than two adults.
  • Performance is highly sensitive to "cruising bloat" (excessive weight).
  • Folding mechanism requires regular maintenance to prevent seizing or structural fatigue.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Trimaran Sailboat
Keel Type
Centerboard
Ballast
-
Displacement
2800 lbs
Water Capacity
25 gal
Fuel Capacity
12 gal

Dimensions

Length Overall (LOA)
26.25 ft
Waterline Length (LWL)
24 ft
Beam
16 ft
Draft
4.75 ft
Max Headroom
-
Air Draft
36 ft
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Fractional Sloop
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Sail Area
370 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
29.8
Ballast / Displacement Ratio
Displacement / Length Ratio (D/L) Ratio
90.42
Comfort Ratio
4.37
Capsize Screening Formula
4.54
Hull Speed
6.56 kn