The Apache 45, introduced in 1970 by Sailcraft Ltd., represents the culmination of the collaboration between Olympic-level boatbuilder Reg White and the prolific multihull designer Rod Macalpine-Downie. Conceived as an "extended" variant of the Apache 41 hull, this 45-foot cruising catamaran was designed to provide trans-oceanic luxury without sacrificing the speed and efficiency that defined Sailcraft's racing pedigree. Built in Brightlingsea, Essex, the Apache 45 remains a significant example of early British fiberglass multihull construction, offering a stable and capacious platform for offshore voyaging.
Apache 45 Information, Review, Specs
- Make
- Apache
- Model
- 45
- Builder
- Sail Craft Ltd.
- Designer
- J. R. Macalpine-Downie
- Number Built
- Production Year(s)
- 1970 - ??
Sailing Performance & Handling
The Apache 45 is characterized by its high initial stability and the ability to maintain impressive average speeds on long passages. With an overall length (LOA) of 45 feet and a beam of 19.5 feet, the vessel offers a massive footprint that provides roughly seven times the initial resistance to heeling compared to a monohull of similar displacement. Its performance is significantly enhanced by retractable centerboards—a signature Macalpine-Downie design element—which provide a minimum draft of just 3.0 feet for shallow anchorages but can be lowered to 6.75 feet to improve upwind tracking and reduce leeway.
Technical analysis from the era suggests a hull speed of approximately 8.58 knots, though owner reports often cite higher sustained speeds when reaching in favorable winds. The boat was typically offered with various rig configurations, including sloop, ketch, and cutter options, allowing owners to tailor the handling characteristics to their specific cruising needs. Despite its 14,000-pound displacement, the Apache 45 remains surprisingly nimble for a first-generation production cruiser, largely due to its narrow hull-to-length ratio below the waterline which reduces wave-making resistance.
Interior Comfort & Variations
The interior of the Apache 45 utilizes the immense volume of the bridge deck to create a living space that was considered revolutionary in the early 1970s. The standard layout features a sprawling central saloon with nearly 360-degree visibility, a layout later popularized by modern catamaran builders. Accommodation is typically split between the two hulls, often configured with two double staterooms in the after sections and additional berths or heads forward.
A significant variation of this model exists in the form of its "sibling" hull, the Apache 41. While the 41-foot version was the more common production run, the Apache 45 used the same core molds with extended transoms to provide better buoyancy for heavy cruising gear and a larger aft deck area. Materials throughout the interior generally consist of a functional blend of molded fiberglass modules and heavy teak trim, designed for durability in the high-humidity environment of a liveaboard cruiser. Headroom is generous throughout the bridge deck, often exceeding 6' 6", a feature highlighted by enthusiasts in archives of Good Old Boat magazine.
Popular Mentions & Media
While the Apache 45 did not see the massive production numbers of its smaller sibling, the Iroquois 30, it remains a "cult classic" among multihull historians. The design is frequently cited in retrospectives of Rod Macalpine-Downie’s career, which also included the record-breaking Crossbow proa and the Olympic-class Tornado. The Apache series is often mentioned in cruising literature as a pioneer of the "luxury cruising cat" category, a sector of the market that Sailcraft helped define before the company ceased operations in 1986.
Known Issues & Buyer’s Checklist
Prospective buyers of an Apache 45 should prioritize a rigorous inspection of the following technical areas:
- Centerboard Trunk Integrity: The retractable daggerboards are prone to wear at the pivot points. Inspect the trunks for stress cracks and ensure the lifting mechanisms operate smoothly without binding.
- Deck and Hull Delamination: As a GRP vessel from the 1970s, moisture ingress in the balsa or foam cores (if used in the deck) is a common failure point. Pay close attention to soft spots around the stanchion bases and the main mast step.
- Window Leaks: The large panoramic windows on the bridge deck are notorious for developing leaks over time as the hull flexes. Most surviving examples require a complete re-bedding or replacement of the original frames.
- Rigging Loads: If the boat is a ketch-rigged variant, the complexity of the standing rigging is doubled. Check the chainplates thoroughly, as these were often over-engineered but can suffer from crevice corrosion where they pass through the deck.
Community & Resources
Owners of the Apache 45 typically congregate within broader British multihull associations. The most notable resource for technical data and historical context is the Iroquois & Sailcraft Owners Association, which provides a repository for many of Macalpine-Downie’s original design notes and Sailcraft Ltd. brochures.
The Verdict
The Apache 45 is a robust, performance-oriented cruiser for the sailor who values historical design and shallow-water accessibility.
Pros:
- Excellent stability and comfort at sea compared to monohulls.
- Shallow draft with boards up allows for unique coastal gunkholing.
- Massive interior volume and headroom for a 1970s-era boat.
Cons:
- Early fiberglass construction may require significant osmotic and structural maintenance.
- The wide beam makes finding affordable marina slips difficult in some regions.
- Centerboard maintenance adds mechanical complexity compared to fixed-keel catamarans.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Catamaran Sailboat
- Keel Type
- Centerboard
- Ballast
- -
- Displacement
- 14000 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 45 ft
- Waterline Length (LWL)
- 41 ft
- Beam
- 19.5 ft
- Draft
- 6.75 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Sail Area
- 710 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 19.55
- Ballast / Displacement Ratio
- —
- Displacement / Length Ratio (D/L) Ratio
- 90.68
- Comfort Ratio
- 9.82
- Capsize Screening Formula
- 3.24
- Hull Speed
- 8.58 kn