Ghost 15 — Information, Review, Specs

Greg Gregory·1965·Greg Gregory
Approximate drawing

Hover a measurement to read its value

Hull type
Monohull · centerboard
Rig
Fractional Sloop
LOA
15' · 4.57 m
Displ.
170 lbs · 77 kg
First year
1965

The Ghost 15 is a performanceoriented sailing dinghy that emerged in the early 1970s, designed by the prolific Rod MacalpineDownie and manufactured by Janus Marine. Best known for his groundbreaking work on highspeed catamarans like the Tornado, MacalpineDownie applied his expertise in fluid dynamics and sail power to this 15foot monohull. The result was a boat that bridged the gap between a stable family daysailer and a highperformance racing machine. Built primarily of fiberglass with a centerboard configuration, the Ghost 15 was marketed as a "highspeed, onedesign racer" that could still accommodate a small family for afternoon excursions. Its sharp entry and flat aft sections allowed it to plane with ease, a hallmark of the designer’s philosophy of maximizing speed through reduced wetted surface area.

Measurements

Dimensions 01

LOA
15 ft
LWL
-
Beam
7 ft
Draft
4 ft
Max headroom
-
Air draft
-

Construction & hull 02

Construction
Fiberglass (Plywood Core)
Hull type
Monohull
Keel type
Centerboard
Rudder
1× —
Ballast
-
Displacement
170 lbs
Water
-
Fuel
-

Rig & sails 03

Rig type
Fractional Sloop
P · main luff
-
E · main foot
-
I · fore ht.
-
J · fore base
-
Forestay (est)
-
Sail area
165 sqft

Calculations 04

SA/D ratio
86.02
Ballast/Disp.
D/L ratio
Comfort ratio
Capsize screening
5.05
Hull speed

Sailing Performance & Handling

The Ghost 15 is frequently described as a "responsive and forgiving" platform that rewards technical trimming. Because the designer was a specialist in multihulls, the Ghost 15 features a relatively high sail-area-to-displacement ratio compared to heavier contemporaries like the O'Day Daysailer. This gives the boat an energetic feel in light air, where it can outpace many other boats of its vintage. In a blow, the boat’s 5' 6" beam provides enough leverage for a crew to keep it upright, though it is known to be "tender" (tippy) until the centerboard and crew weight are properly balanced.

Handling is characterized by quick acceleration and a tendency to plane early on a reach. The rig is typically a sloop configuration with a generous mainsail and a jib. According to archival specifications from Janus Marine, the boat was designed to be easily handled by two people, but its lightweight hull allows for single-handed sailing by experienced pilots who can manage the mainsheet and tiller simultaneously in moderate breeze. Its tracking is reported to be sharp, thanks to a deep, pivoting centerboard that allows for efficient upwind work and the ability to navigate extremely shallow waters when retracted.

While the Ghost 15 does not have a sprawling library of dedicated literature, it holds a respected place in the history of "The Great Dinghy Era" of the 1970s. The boat's designer, Rod Macalpine-Downie, is a member of the International Sailing Hall of Fame, which adds a layer of pedigree to the model. The Ghost 15 specifically was featured in marketing campaigns that highlighted its versatility, often appearing in 1970s yachting periodicals as the "next step" for sailors graduating from smaller 11- or 12-foot trainers. It remains a fixture in vintage dinghy regattas across the American Midwest and Northeast, where Janus Marine had its strongest distribution.

Known Issues & Buyer’s Checklist

For those looking to acquire a vintage Ghost 15, several age-related technical areas require close inspection. As with many fiberglass boats of the 1970s, the construction methods were robust but not immune to the passage of time.

  1. Centerboard Trunk Integrity: The most critical area for inspection is the centerboard trunk. Leaks often develop at the pivot pin or where the trunk meets the hull floor. Stress cracks in the fiberglass around the trunk usually indicate a history of groundings or excessive lateral pressure.
  2. Flotation Tank Seals: The Ghost 15 relies on sealed air tanks for buoyancy. Over decades, the seals around the inspection ports or the hull-to-deck joint can fail. It is vital to ensure these tanks are airtight, as a swamped Ghost 15 without functional flotation is difficult to recover.
  3. Mast Step Compression: Check the area where the mast sits on the deck or keelson. Heavy rigging tension over 50 years can cause the fiberglass to "dish" or compress, which may require a reinforced backing plate for a safe repair.
  4. Hardware Backing: Many Ghost 15s were built with plywood backing plates for cleats and stay-points. These are prone to rot if water has seeped through the mounting holes, leading to hardware that can pull out under load.

Community & Resources

While there is no longer a centralized manufacturer support system, the Ghost 15 is supported by a niche community of vintage dinghy enthusiasts. Information on parts and rigging specifications can often be found through the broader Macalpine-Downie design archives. Owners frequently congregate on general sailing forums such as the Sailing Anarchy "Dinghy Anarchy" section or CruisersForum to swap restoration tips. Technical diagrams and original sail plans are occasionally circulated through the Small Boat Exchange and regional "One Design" associations that celebrate 1970s fiberglass classics.

The Verdict

The Ghost 15 remains an excellent choice for sailors who appreciate 1970s design pedigree and want a boat that offers more "zip" than a standard trainer. It is a purist's dinghy that prizes speed and feedback.

Pros:

  • Excellent light-air performance and early planing capabilities.
  • Lightweight enough for easy trailering and beach launching.
  • Designed by a legendary naval architect, ensuring a high-quality hull shape.

Cons:

  • Can be "tender" and prone to capsizing if the crew is inattentive in gusts.
  • Vintage fiberglass may require significant structural inspection of flotation tanks.
  • Original replacement parts are no longer in production, requiring custom solutions.

Similar sailboats

12 comparable designs · similar LOA, displacement & rig