Designed by the prolific Alan F. Hill and introduced in the late 1960s, the Tomahawk 25 represents a pivotal moment in the history of Marine Construction Ltd. (Marcon). While the builder’s earlier success with the Trident 24 established its reputation for sturdy, accessible cruisers, the Tomahawk 25 was conceived as a more modern, performance-oriented alternative. It features a distinctive profile characterized by a slightly swept-back coachroof and a hull that prioritizes a cleaner entry into the water than its predecessor. Produced primarily throughout the 1970s, the Tomahawk 25 was offered in both fin and twin-keel (bilge keel) configurations, catering to both deep-water sailors and those navigating the drying harbors of the UK’s South Coast. According to the Marcon Owners Association, the model was a staple of the British coastal cruising scene, successfully bridging the gap between a manageable family daysailer and a legitimate coastal voyager.
Tomahawk 25 Information, Review, Specs

- Make
- Tomahawk
- Model
- 25
- Builder
- Marine Construction
- Designer
- Alan Hill
- Number Built
- 300
- Production Year(s)
- 1970 - ??
Sailing Performance & Handling
The Tomahawk 25 is frequently characterized as a "slippery" cruiser, a term used by contemporary reviewers to describe its ability to outpace heavier, high-volume peers like the Westerly Centaur. With a masthead sloop rig and a relatively high ballast ratio—often exceeding 40% depending on the keel configuration—the boat exhibits remarkable stiffness. In fin-keel form, the Tomahawk 25 tracks exceptionally well and displays a level of responsiveness more akin to a racing yacht of its era than a dedicated motor-sailer.
Under sail, the boat benefits from Alan Hill’s attention to underwater foils. The rudder is hung on a substantial skeg, providing a balance between protection and maneuverability. In heavy air, the boat is known for its sea-kindly motion; it tends to "shoulder" through chop rather than slamming, a trait attributed to its moderate displacement and traditional hull sections. While the bilge-keel version sacrifices a few degrees of pointing ability and some speed in light winds, it remains a capable performer, avoiding the sluggishness often associated with 1970s-era twin-keelers. Owner anecdotes often highlight its ability to carry a full press of sail longer than expected before requiring the first reef.
Interior Comfort & Variations
For a 25-foot vessel designed in the 1960s, the Tomahawk 25 offers a surprisingly ergonomic interior, though it reflects the "semi-open plan" philosophy popular at the time. Most hulls were configured with five berths: a double "V" berth in the forepeak, a settee berth in the saloon that could sometimes convert to a double, and a generous quarter berth to starboard. The absence of a full bulkhead between the main saloon and the forward cabin—often replaced by a partial bulkhead or a curtain—creates an illusion of greater length and improves ventilation.
Headroom is a standout feature, reaching approximately 5’10” under the main hatch, which was ambitious for a 25-footer of this vintage. The galley is typically located to port, featuring a simple two-burner stove and sink, while a dedicated marine toilet (heads) is situated between the saloon and the forepeak. Variations exist primarily in the "home-finished" examples; because Marcon sold many Tomahawk 25s as kits or bare mouldings, the quality of joinery and the specific layout of lockers can vary significantly from boat to boat. Sibling models like the Marcon Sabre 27 and the Marcon Cutlass 27 offered more traditional, partitioned layouts, but the Tomahawk 25 remains the preferred choice for those seeking a brighter, more integrated living space.
Known Issues & Buyer’s Checklist
Prospective buyers should approach the Tomahawk 25 with the diligence required for any 50-year-old fiberglass vessel. Technical discussions within the Marcon community highlight several specific areas of concern:
- Deck Compression: Like many yachts of this era, the Tomahawk 25 uses a balsa or plywood-cored deck. The area around the mast step is particularly prone to compression if water has ingress through the bolt holes, leading to a "dish" in the deck and potential rigging tension issues.
- Keel Bolt Integrity: On fin-keel models, the mild steel bolts can suffer from wasting over decades. Inspecting the keel-to-hull joint for "smiles" or rust bleeding is essential. On bilge-keel versions, the reinforcement around the keel stubs should be checked for stress crazing.
- Rudder Skeg Bushings: The skeg-mounted rudder can develop play in the lower bearing. While not a structural failure, it leads to annoying vibration and less precise steering.
- Osmosis: While Marcon hulls were famously thick and "over-built," they were produced before the industry fully understood the chemistry of osmotic blistering. A hull survey is recommended to check for moisture levels in the laminate.
- Window Leaks: The original aluminum-framed windows are prone to leaking as the bedding compound dries out. Evidence of water staining on the interior teak ply is a common sign that the seals require replacement.
Community & Resources
The primary hub for technical support and historical data is the Marcon Owners Association, which maintains a registry of surviving Tomahawks and provides access to original brochures and rigging diagrams. The association is an invaluable resource for owners seeking to restore "kit-built" boats to their original specifications.
The Verdict
The Tomahawk 25 is a quintessential British small cruiser that manages to balance performance and practicality with a grace often missing from more modern, high-volume designs. It is an ideal entry-level yacht for a couple or a small family who values sailing qualities over "condominium" interior volume.
Pros:
- Excellent sailing performance and stiffness for its size.
- Spacious, open-plan interior with good headroom.
- Robust construction and a well-protected skeg-hung rudder.
- Active and supportive owners' association.
Cons:
- Varying quality of interior finish due to kit-built origins.
- Age-related maintenance (deck core and keel bolts) is likely required.
- The semi-open layout may lack privacy for some cruising groups.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x Skeg-Hung
- Ballast
- 2200 lbs
- Displacement
- 5066 lbs
- Water Capacity
- 20 gal
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 25.33 ft
- Waterline Length (LWL)
- 20 ft
- Beam
- 8.5 ft
- Draft
- 4.67 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- 25.48 ft
- E (Main Foot)
- 8.98 ft
- I (Foretriangle Height)
- 30.37 ft
- J (Foretriangle Base)
- 10.23 ft
- Forestay Length (est)
- 32.05 ft
- Sail Area
- 287 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 15.57
- Ballast / Displacement Ratio
- 43.43
- Displacement / Length Ratio (D/L) Ratio
- 282.7
- Comfort Ratio
- 20.95
- Capsize Screening Formula
- 1.98
- Hull Speed
- 5.99 kn