Alpa A27 — Information, Review, Specs

Sparkman & Stephens·1975·Alpa
Alpa A27 drawingBuilder drawing
Hull type
Monohull · fin
Rig
Masthead Sloop
LOA
26.82' · 8.17 m
Displ.
6,459 lbs · 2,930 kg
First year
1975

The Alpa A27 represents a pivotal era in Mediterranean yachting, emerging from the Offshore Castello shipyard under the direction of Danilo Cattadori. Designed by the esteemed partnership of John Illingworth and Angus Primrose, the A27 was conceived during a period when fiberglass construction was transitioning from an experimental medium to the industry standard. It stands as a "big" small boat, characterized by the robust build quality and elegant, albeit conservative, lines that defined Alpa’s output in the late 1960s and early 1970s. While smaller than the Sparkman & Stephensdesigned flagships like the Alpa 12.70, the A27 shares the same DNA of structural integrity and a design philosophy focused on seaworthiness over internal volume. As documented by the Alpa Historical Club, the vessel remains a hallmark of Italian fiberglass pioneering, often referred to as the "Italian Swan" of its size class due to its build quality.

Measurements

Dimensions 01

LOA
26.82 ft
LWL
23 ft
Beam
9.61 ft
Draft
5.25 ft
Max headroom
-
Air draft
-

Construction & hull 02

Construction
Fiberglass
Hull type
Monohull
Keel type
Fin
Rudder
1× Transom-Hung
Ballast
2296 lbs
Displacement
6459 lbs
Water
-
Fuel
-

Rig & sails 03

Rig type
Masthead Sloop
P · main luff
33.75 ft
E · main foot
10 ft
I · fore ht.
38 ft
J · fore base
11.33 ft
Forestay (est)
39.65 ft
Sail area
384 sqft

Calculations 04

SA/D ratio
17.71
Ballast/Disp.
35.55
D/L ratio
236.99
Comfort ratio
20.29
Capsize screening
2.06
Hull speed
6.43 kn

Sailing Performance & Handling

The Alpa A27 is a product of the "Illingworth school," which favored yachts capable of handling the unpredictable conditions of the English Channel and the Mediterranean. With a displacement-to-length ratio that leans toward the heavy side by modern standards, the A27 is notably "stiff" under sail. This stability is provided by a high ballast ratio—typically around 40%—which allows the boat to carry full sail longer than its contemporary counterparts when the breeze freshens.

In terms of handling, the A27 tracks exceptionally well, a trait attributed to its traditional hull form and deep fin keel. Owners frequently report that the boat feels balanced on the helm, with a predictable amount of weather helm that signals when it is time to reef. While it may not be a "light-air flyer" due to its wetted surface area, it excels in a blow, where its momentum allows it to punch through a chop without the pounding typical of modern, flat-bottomed designs. The tracking capability makes it an excellent candidate for single-handed sailing or long-distance coastal hops.

Interior Comfort & Variations

The interior of the Alpa A27 reflects the era’s preference for fine joinery and a functional, "ship-shape" layout. Upon descending the companionway, the cabin reveals a traditional arrangement: a compact galley to one side and a navigation station or storage to the other. The main salon features two longitudinal settees that double as sea berths, separated by a central table. Forward of the mast, a small head compartment precedes a classic V-berth in the bow.

The use of mahogany and high-quality veneers provides a warmth that is often lacking in modern production boats, though the headroom is somewhat modest for sailors over six feet tall. Variations of the A27 are rare, as the model followed a strict production standard, but differences are primarily found in the engine configurations. Early models were often fitted with Farymann or Bukh diesel engines, though many have since been repowered. The A27’s sibling, the Alpa 21, offers a scaled-down experience, while the Alpa 9.50 (a Sparkman & Stephens design) serves as the logical "step up" for owners seeking more standing headroom and a separate aft cabin.

While the Alpa A27 does not have a single "starring role" in Hollywood, it occupies a significant space in European nautical literature and historical records of the IOR (International Offshore Rule) era. The boat was a staple in the burgeoning Italian cruiser-racer circuit of the 1970s. Its pedigree is frequently discussed in retrospective features by Italian nautical journals like Bolina and Fare Vela, which celebrate Alpa as the shipyard that brought "industrial quality" to the Italian yachting world.

Known Issues & Buyer’s Checklist

Prospective buyers of an Alpa A27 should approach the vessel with an understanding of its age, focusing on the following technical areas:

  • Osmosis: As an early GRP (Glass Reinforced Plastic) boat, the A27 is susceptible to hull blistering. While Alpa hulls were laid up heavily, a moisture meter test and a visual inspection of the gelcoat are essential.
  • Deck Core: The decks are typically sandwich-constructed. Areas around the stanchion bases, chainplates, and the mast step should be checked for "soft spots" which indicate water ingress and core rot.
  • Chainplates and Rigging: Given the boat’s stiff sailing characteristics, the chainplates undergo significant stress. Inspect the fiberglass knees where the chainplates are through-bolted for signs of crazing or movement.
  • Engine Serviceability: If the vessel still carries its original Farymann engine, parts can be difficult to source. Check the cooling passages for scale buildup and the engine mounts for degradation.
  • Rudder Bearings: Inspect the rudder for play or "slop" in the bushings, a common wear item on boats of this vintage.

Community & Resources

The most prominent resource for technical data and historical documentation is the Alpa Historical Club, which maintains an archive of original brochures, sail plans, and owner manuals. This community is vital for sourcing specific hardware or advice on restoring the original aesthetic of the vessel. Additionally, the "Alpa Style" social media groups provide a platform for owners across Europe to share refit photos and cruising stories.

The Verdict

The Alpa A27 is a "sailor’s sailboat," prioritizing offshore capability and classic aesthetics over the expansive "condo-on-the-water" interiors of modern designs. It is an ideal choice for a couple or solo sailor looking for a seaworthy classic that can handle genuine blue-water conditions.

Pros:

  • Exceptional build quality and "heavy-built" fiberglass hull.
  • Predictable and seaworthy handling in heavy weather.
  • Classic, timeless lines designed by John Illingworth.
  • Strong community support and historical significance.

Cons:

  • Modest interior headroom and limited beam by modern standards.
  • Sluggish performance in very light winds.
  • Maintenance requirements typical of a 50-year-old vessel (osmosis and engine parts).

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