Yamaha 28 Information, Review, Specs

Yamaha 28 Drawing
Make
Yamaha
Model
28
Builder
Yamaha
Designer
Yamaha Design Team
Number Built
Production Year(s)
1980 - ??

The Yamaha 28, often referred to as the Y-28, represents a peak era of Japanese fiberglass engineering applied to the recreational sailing market. Produced primarily between the late 1970s and mid-1980s, it arrived during a period when Yamaha was leveraging its industrial precision—honed in motorcycle and musical instrument manufacturing—to create vessels that challenged the build quality of established Western marques like Catalina or Pearson. Designed by the Yamaha Design Team, the 28 was a "big" 28-footer for its time, incorporating a moderate beam and a profile that balanced the requirements of a competitive club racer with the volume needed for coastal cruising. The boat is a testament to the era's International Offshore Rule (IOR) influences, characterized by a masthead sloop rig and a hull shape that prioritizes stability and upwind performance.

Sailing Performance & Handling

The Yamaha 28 is frequently described by owners as a stiff, weatherly boat that handles heavy air with more composure than many of its lightweight contemporaries. Its design features a high ballast-to-displacement ratio, which contributes to a feeling of security when the breeze freshens. Under sail, the Y-28 exhibits the classic characteristics of a late-70s cruiser-racer: it tracks well upwind thanks to a deep fin keel, though like many IOR-influenced designs, it requires attentive helming when running downwind in a swell to avoid rhythmic rolling.

The boat was typically powered by a small inboard diesel—often a Yanmar or a proprietary Yamaha marine engine. Performance under power is adequate for coastal work, though the hull's displacement means it is not a "speedster" in light air without a generous headsail. According to historical technical notes from Yamaha Motor's Global History, the company’s focus on Fiber Reinforced Plastic (FRP) allowed for highly accurate hull shapes, which translates to a smooth, predictable motion through a chop.

Interior Comfort & Variations

For a vessel of 28 feet, the interior of the Yamaha 28 is remarkably well-appointed, benefiting from Yamaha’s "total systems" approach to manufacturing. The layout typically features a traditional V-berth forward, followed by a full-width head compartment. The main salon utilizes a settee to port and a dinette to starboard, which can often be converted into an additional berth. One of the standout features of this model is the quality of the cabinetry; Yamaha utilized high-grade joinery and molded liners that gave the boat a finished, "big yacht" feel compared to the raw fiberglass often seen in budget-tier competitors.

Several variations of the 28-foot hull were produced to cater to different regional markets. While the standard Y-28 focused on cruising comfort, some "S" (Sailing/Sport) variants featured upgraded spar packages and simplified interiors to reduce weight for racing. Additionally, the Yamaha 28 was part of a larger family of cruisers including the smaller Yamaha 25 and 26, and the larger, highly-regarded Yamaha 33 and 36 models. The 33, in particular, shares much of the 28’s design DNA but offers a more robust offshore capability.

Known Issues & Buyer’s Checklist

Prospective buyers should approach a Yamaha 28 with a focus on its age-specific maintenance needs. While the hulls are known for being overbuilt, three specific areas require scrutiny:

  1. Deck Core Integrity: Like many boats of this era, the Yamaha 28 uses a balsa-cored deck. Buyers should check for soft spots, particularly around stanchion bases, chainplates, and the mast step. Water intrusion in these areas can lead to delamination, a common "gotcha" noted in owner circles on forums such as CruisersForum.
  2. Keel Bolt Corrosion: The cast-iron or lead fin keel is secured with stainless steel bolts. Given the age of these vessels, inspecting the "smile" at the leading edge of the keel-to-hull joint and the condition of the internal nuts is essential.
  3. Engine Parts Availability: While Yanmar-powered units are easy to service, some Yamaha 28s were fitted with original Yamaha diesel engines. Finding replacement parts for these specific vintage marine diesels can be challenging compared to the ubiquitous Yanmar 1GM or 2GM series.
  4. Electrical Systems: Original wiring often utilized automotive-grade connectors that do not age well in salt-air environments. A total rewiring is a common necessity for boats that haven't been updated in the last decade.

Community & Resources

The Yamaha 28 enjoys a dedicated, if niche, following. While there is no longer an active factory-sponsored association for these legacy sailboats, technical support is often found through the "Yamaha Sailboat Owners" groups on various social platforms and the archives of the New Japan Yacht Company, which maintains a spiritual link to Yamaha's original sailboat manufacturing legacy.

The Verdict

The Yamaha 28 is an excellent choice for a sailor looking for a high-quality, "bulletproof" starter boat that punches above its weight class in terms of build finish and sea-kindliness.

Pros:

  • Exceptional Build Quality: Superior FRP work and interior joinery for its era.
  • Sea-kindly Motion: Stiff and predictable in a blow, making it a safe coastal cruiser.
  • Aesthetic Appeal: Classic lines that have aged better than many experimental 80s designs.

Cons:

  • Aging Systems: Likely requires updates to standing rigging and electronics.
  • Limited Light Air Speed: The heavy displacement can feel sluggish in winds under 8 knots.
  • Niche Support: Parts for original Yamaha-branded engines can be difficult to source.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x Spade
Ballast
2205 lbs (Iron)
Displacement
6329 lbs
Water Capacity
40 gal
Fuel Capacity
16 gal

Dimensions

Length Overall (LOA)
28 ft
Waterline Length (LWL)
23.33 ft
Beam
9.75 ft
Draft
5.92 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Masthead Sloop
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Sail Area
385 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
18
Ballast / Displacement Ratio
34.84
Displacement / Length Ratio (D/L) Ratio
222.51
Comfort Ratio
19.05
Capsize Screening Formula
2.11
Hull Speed
6.47 kn