Topaz Xenon — Information, Review, Specs

Ian Howlett and Rob White·2005 – 2008·Tooper International
Approximate drawing

Hover a measurement to read its value

Hull type
Monohull · centerboard
Rig
Fractional Sloop
LOA
14.76' · 4.5 m
Displ.
309 lbs · 140 kg
First year
2005

The Topaz Xenon is a highperformance multipurpose dinghy designed by Ian Howlett and Jo Richards to bridge the gap between stable family day boats and aggressive racing skiffs. Manufactured by Topper International, the Xenon is constructed using a robust TRILAM polyethylene rotomoulding process, which provides a durable, lowmaintenance hull capable of withstanding the rigors of club racing and beach launches. While it shares a design DNA with other boats in the Topaz range, the Xenon is specifically marketed as a "circuit racer" that remains accessible enough for recreational outings. It features a modern, widebeam hull form and a powerful rig that includes Mylar sails and a highaspect gennaker.

Measurements

Dimensions 01

LOA
14.76 ft
LWL
14.76 ft
Beam
6.56 ft
Draft
-
Max headroom
-
Air draft
-

Construction & hull 02

Construction
Hull type
Monohull
Keel type
Centerboard
Rudder
1× —
Ballast
-
Displacement
309 lbs
Water
-
Fuel
-

Rig & sails 03

Rig type
Fractional Sloop
P · main luff
-
E · main foot
-
I · fore ht.
-
J · fore base
-
Forestay (est)
-
Sail area
145.64 sqft

Calculations 04

SA/D ratio
50.98
Ballast/Disp.
D/L ratio
42.9
Comfort ratio
2.64
Capsize screening
3.88
Hull speed
5.15 kn

Sailing Performance & Handling

On the water, the Topaz Xenon is characterized by its remarkable stability-to-performance ratio. Unlike narrower performance dinghies that feel "twitchy" at low speeds, the Xenon’s hull shape provides a solid initial platform, making it a favorite for intermediate sailors looking to transition into asymmetric spinnaker handling. According to editorial reviews by Yachting World, the boat’s chined hull assists with tracking and provides a predictable "pop" onto the plane when the wind picks up.

The rig is sophisticated yet manageable. It typically features a 12.10m² mainsail and a 3.55m² jib, complemented by an 11.53m² asymmetric gennaker. The inclusion of a single trapeze option allows the crew to balance the boat’s significant power in heavier airs, while the cockpit is ergonomically designed to allow for "hiking" if the trapeze is not in use. Sibling models like the Topaz Magno and the Topaz Omega offer similar construction but different scales; the Magno is a smaller, more family-oriented version, while the Omega is a larger multi-crew trainer. The Xenon distinguishes itself by being the "sportiest" of the rotomoulded fleet, offering a high-performance feel without the fragility of traditional glass-fiber hulls.

The Topaz Xenon has earned a significant footprint in the European sailing circuit, particularly as a standardized platform for the Endeavour Championship, an annual "champion of champions" event held at the Royal Corinthian Yacht Club. This selection by the Royal Yachting Association (RYA) and event organizers highlights the boat's reputation for being a fair, strictly one-design platform where the outcome is determined by tactical skill rather than equipment advantages.

Known Issues & Buyer’s Checklist

When inspecting a used Topaz Xenon, potential buyers should focus on the specific characteristics of its polyethylene construction. While the TRILAM hull is incredibly tough, it is susceptible to "oil-canning" or slight deformations if stored incorrectly on a trailer or trolley without proper support over many years.

  • Mast Step and Gate: Inspect the area around the mast gate for stress fractures. While polyethylene doesn't crack like gelcoat, heavy use in high-wind racing can fatigue the metal fittings or the plastic around bolt-through points.
  • Foils and Gudgeons: Examine the transom gudgeons and the rudder stock. High-speed sailing puts significant load on these components; look for any play in the rudder head or signs that the stainless steel fittings are pulling against the plastic.
  • Mylar Sail Condition: The Xenon often comes with high-performance Mylar sails. Check for delamination or "clouding," especially near the battens and the tack. Unlike Dacron, once Mylar begins to delaminate, the sail’s shape and structural integrity degrade rapidly.
  • Asymmetric Chute: Ensure the gennaker retrieval system is smooth. The internal chute can sometimes accumulate sand or debris, which increases friction and leads to premature wear on the spinnaker fabric.

Community & Resources

The Xenon is supported by a dedicated community, primarily through the Topper International network and the various sailing clubs that utilize the boat for one-design racing. The class is a frequent participant in major UK handicap events, and technical support is often managed directly by the manufacturer, which provides detailed rigging guides and spare parts catalogs for the entire Topaz range.

The Verdict

The Topaz Xenon is a versatile, rugged, and surprisingly fast dinghy that serves both as a competitive racer and a capable club trainer.

Pros:

  • Extremely durable TRILAM hull requires minimal maintenance compared to fiberglass.
  • High stability makes it an excellent platform for learning asymmetric spinnaker techniques.
  • Proven racing pedigree as a former choice for the Endeavour Championship.
  • Spacious cockpit can comfortably accommodate a crew of two or even a small family for cruising.

Cons:

  • Polyethylene hulls are heavier than carbon or high-end glass equivalents, affecting ultimate light-wind acceleration.
  • The material is difficult to repair if a major structural breach occurs (though rare).
  • Limited secondary market value compared to niche, high-performance carbon skiffs.

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