Trident 24 Information, Review, Specs

Trident 24 Drawing
Make
Trident
Model
24
Builder
Trident Marine Ltd.
Designer
Alan F. Hill
Number Built
250
Production Year(s)
1960 - 1974

The Trident 24 stands as the foundational success of Trident Marine, representing a pivotal moment in British yachting history when fiberglass construction began to democratize offshore cruising. Designed by Alan Hill in 1960 and moving into GRP (Glass Reinforced Plastic) production by 1962, the Trident 24 was the vessel that established the brand's reputation for building "little ships" rather than mere dayboats. While the later Angus Primrose designs like the Warrior 35 brought the company international fame, the Trident 24 remains a staple of the UK's coastal and estuary sailing scene, with over 270 hulls produced before production ceased in the late 1970s.

Sailing Performance & Handling

Under sail, the Trident 24 is characterized by its remarkable stiffness and predictable motion, traits inherited from its heavy-displacement heritage. With a displacement of approximately 4,200 lbs and a high ballast ratio, the boat feels significantly larger than its 24-foot LOA would suggest. According to technical documentation maintained by the Trident 24 Owners Association, the hull was offered in three distinct keel configurations: a deep fin keel, a triple-keel (bilge keel) setup, and a centerboard version.

The triple-keel variant is the most common, designed specifically for the tidal harbors of Northern Europe, allowing the boat to dry out upright on sandy or muddy bottoms. While the fin-keel version offers superior windward performance and a tighter tacking angle, the triple-keel version is surprisingly capable, utilizing its central ballast keel and two hydrofoil-shaped side keels to maintain tracking. Because of its relatively low Sail Area-to-Displacement (SA/Disp) ratio, the Trident 24 is not a light-air flyer; it requires a stiff breeze to truly find its stride. However, when modern light-displacement cruisers are heading for the marina to escape a building sea, the Trident 24 is frequently noted for its "sea-kindliness," cutting through chop with a dampened motion that minimizes crew fatigue.

Interior Comfort & Variations

Despite its modest dimensions, the interior of the Trident 24 was designed with genuine cruising in mind. The layout typically features four berths: two in the V-berth forward and two settee berths in the main saloon. The headroom is approximately 5'8", which was generous for a 24-foot boat in the 1960s but requires a slight crouch for taller sailors today. The cabin is notable for its use of traditional wood joinery, which provides a warmer, more substantial feel than the "all-plastic" liners found in contemporary entry-level boats.

Variations in the interior are largely centered around the evolution of the deck mold. Earlier models often featured a more traditional coachroof, while later versions maximized interior volume. The centerboard version, often marketed as the "Mariner," features a slightly modified cabin sole to accommodate the centerboard trunk, which marginally impacts footroom but allows for a shallower draft of only 2'6" with the plate up. Storage is surprisingly abundant, with deep lockers under the berths and a dedicated galley area that usually houses a two-burner stove and a small sink, making it a viable platform for weekend coastal hops or cross-channel voyages.

Known Issues & Buyer’s Checklist

Prospective buyers should approach a Trident 24 with an awareness of its age, as most hulls are now over 40 years old.

  1. Chainplates and Bulkheads: A critical inspection point is the attachment of the chainplates to the internal bulkheads. Over time, water ingress through the deck fittings can cause the plywood bulkheads to rot, compromising the structural integrity of the rig.
  2. Keel Bolt Integrity: For the triple-keel versions, the stresses of drying out on every tide can lead to fatigue around the keel-to-hull joints. Buyers should look for "smile" cracks at the leading or trailing edges of the keels and check the internal backing plates for signs of heavy corrosion.
  3. Deck Delamination: Like many GRP boats of this era, the Trident 24 may suffer from soft spots in the deck. This is often caused by moisture penetrating the balsa or plywood core through poorly bedded deck hardware.
  4. Osmosis: While Trident Marine used thick laminates, early GRP production was prone to osmotic blistering. A hull survey is recommended to determine the extent of any "osmotic pox" below the waterline.
  5. Rudder Play: The transom-hung or skeg-mounted rudders (depending on the specific sub-model) should be checked for play in the pintles and gudgeons, as decades of use can lead to significant ovaling of the attachment points.

Community & Resources

The Trident 24 benefits from one of the most active and technically proficient small-boat communities in the United Kingdom. The Trident 24 Owners Association serves as the primary repository for the class, providing digitized copies of original brochures, sail plans, and a wealth of member-contributed technical guides for restoration. This community is an essential resource for sourcing replacement parts or advice on modernizing the rig and engine.

The Verdict

The Trident 24 is a quintessential "pocket cruiser" that prioritizes safety and durability over speed. It remains an ideal choice for the budget-conscious sailor who desires a boat capable of handling more than just fair-weather harbor sailing.

Pros:

  • Exceptional seaworthiness and stability for its size.
  • The triple-keel version is perfect for tidal drying moorings.
  • Robust construction that stands the test of time.
  • Active and supportive owners' association.

Cons:

  • Relatively slow in light winds due to heavy displacement.
  • Headroom is restrictive for taller individuals.
  • Older models likely require significant electrical and plumbing upgrades.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Triple
Rudder
1x —
Ballast
1500 lbs
Displacement
4040 lbs
Water Capacity
17 gal
Fuel Capacity
12 gal

Dimensions

Length Overall (LOA)
24 ft
Waterline Length (LWL)
19 ft
Beam
7.42 ft
Draft
2.5 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Fractional Sloop
P (Main Luff)
26 ft
E (Main Foot)
11.42 ft
I (Foretriangle Height)
26.2 ft
J (Foretriangle Base)
8.5 ft
Forestay Length (est)
27.54 ft
Sail Area
290 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
18.29
Ballast / Displacement Ratio
37.13
Displacement / Length Ratio (D/L) Ratio
262.95
Comfort Ratio
21.09
Capsize Screening Formula
1.86
Hull Speed
5.84 kn