Designed by the prolific naval architect Winthrop L. Warner in the late 1930s, the Warner Typhoon 25 (commonly referred to simply as the Warner 25) is a quintessential "pocket cruiser" that prioritizes seaworthiness and interior volume over raw speed. Warner, whose design archives are preserved at the Mystic Seaport Museum, intended the Typhoon 25 to serve as a robust, full-keel auxiliary sloop capable of handling offshore conditions that would intimidate most vessels of its length. With its exceptionally wide beam and heavy displacement, the design is often described as a "little ship," offering a level of stability and safety typically found in boats ten feet longer. Most hulls were traditionally constructed of cedar or mahogany over oak frames, though the design’s longevity has seen several individual custom builds in various materials over the decades.
Warner Typhoon 25 Information, Review, Specs

- Make
- Warner
- Model
- Typhoon 25
- Builder
- Whitaker Marine
- Designer
- Winthrop Warner
- Number Built
- Production Year(s)
- 1938 - ??
Sailing Performance & Handling
The Warner Typhoon 25 is a heavy-displacement cruiser that prioritizes "sea-kindliness" and tracking over light-air agility. With a displacement of approximately 9,000 pounds on a 21-foot waterline, the boat possesses significant momentum, allowing it to punch through a chop without the hobby-horsing common in lighter 25-footers. The full keel provides excellent directional stability, making it easy to trim the sails and leave the tiller for short periods, a trait highly valued by single-handed sailors.
The fractional sloop rig (or sometimes cutter rig in custom variations) is modest in size, reflecting a design intended for heavy weather. Under sail, the Typhoon 25 feels stiff and secure; its nearly 9-foot beam provides a high degree of initial stability. However, the high wetted surface area of the full keel and the heavy hull mean that it requires a stiff breeze—typically 10 knots or more—to truly come alive. Technical reviews from the era and retrospective analyses in "Small Boat Journal" suggest that while it is not a "pointing" machine, its ability to maintain a steady course in a gale is superlative for its class.
Interior Comfort & Variations
The interior of the Typhoon 25 is remarkably spacious for a vessel designed in the 1930s, largely due to its generous 8' 9" beam. Unlike the narrow, "needle-spar" designs of the same period, Warner utilized the width to create a functional living space that includes a dedicated galley, a private head, and a V-berth.
There are two primary variations of the design built on the same hull: the "Standard" cabin and the "Doghouse" version. The Doghouse variant features a raised aft section of the coachroof, which significantly increases headroom near the companionway and provides a more airy feel in the main cabin. Materials typically consist of traditional joinery, with many owners maintaining the classic mahogany brightwork and white-painted bulkheads that define the New England aesthetic. The layout generally accommodates four adults for short cruises, though it is optimized for a couple seeking long-term coastal cruising comfort.
Popular Mentions & Media
The Warner 25 holds a venerable position in the history of American yachting. It was famously featured in the editorial archives of "The Rudder" magazine during the mid-20th century as a benchmark for sensible cruising design. More recently, the boat's design lineage and Winthrop Warner’s contribution to naval architecture have been documented by the WoodenBoat editorial team, which often highlights the Typhoon 25 as a premier example of the "character boat" movement—vessels that evoke a sense of tradition and ruggedness.
Known Issues & Buyer’s Checklist
Because the vast majority of Warner Typhoon 25s are wooden-hulled, the buyer’s checklist is dominated by structural integrity concerns common to traditional construction.
- Fastener Fatigue: Many of these boats were built with bronze or galvanized fasteners. A common "gotcha" found in owner discussions and surveyor notes is "iron sickness" or fastener leaching, which can weaken the frames.
- Deck and Coachroof Leaks: The transition between the wooden deck (often canvas-covered or fiberglassed over) and the mahogany trunk cabin is a notorious spot for freshwater incursion, which can lead to rot in the carlins.
- Keel Bolts and Deadwood: Given the age of many hulls, the keel bolts should be drawn and inspected for wastage. Any signs of weeping at the keel-to-hull joint should be a primary concern.
- Rudder Hardware: The heavy transom-hung or aperture-mounted rudders are subject to significant stress; buyers should check for play in the gudgeons and pintles.
Community & Resources
The primary repository for technical data and original plans is the Winthrop L. Warner Collection at the Mystic Seaport Museum. While there is no longer a dedicated "factory" association, owners frequently congregate within the broader "WoodenBoat Forum" and "Classic Boat" communities to share restoration techniques and specific rigging measurements for Design #124.
The Verdict
The Warner Typhoon 25 is an uncompromising classic that trades speed for security and cramped quarters for genuine craftsmanship.
Pros:
- Exceptional stability and heavy-weather performance for a 25-foot boat.
- Surprising interior volume due to the nearly 9-foot beam.
- Timeless aesthetic that commands respect in any harbor.
- High-quality traditional construction (in well-maintained examples).
Cons:
- High maintenance requirements associated with wooden hull ownership.
- Sluggish performance in light winds (under 8 knots).
- Limited availability on the secondary market.
Measurements
Construction & Hull
- Construction Material
- Wood
- Hull Type
- Monohull Sailboat
- Keel Type
- Full
- Rudder
- 1x Attached
- Ballast
- 3500 lbs (Iron)
- Displacement
- 11500 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 24.5 ft
- Waterline Length (LWL)
- 20.33 ft
- Beam
- 9 ft
- Draft
- 4.83 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Cutter
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- 300 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 9.42
- Ballast / Displacement Ratio
- 30.43
- Displacement / Length Ratio (D/L) Ratio
- 611
- Comfort Ratio
- 44.11
- Capsize Screening Formula
- 1.6
- Hull Speed
- 6.04 kn