Chrysler Man-O-War 15 Information, Review, Specs

Chrysler Man-O-War 15 Drawing
Make
Chrysler
Model
Man-O-War 15
Builder
Chrysler Marine
Designer
Rod Macalpine-Downie
Number Built
Production Year(s)
1964 - 1980

The Chrysler Man-O-War 15 was an ambitious, performance-oriented entry into the competitive "one-design" racing market of the early 1970s. Designed by the prolific British naval architect J.R. (Rod) Macalpine-Downie—celebrated for his pioneering work in high-speed catamarans and the Buccaneer 18—the Man-O-War was positioned as a faster, more technically advanced alternative to popular board boats of the era. Manufactured at Chrysler Marine’s specialized boat-building facility in Plano, Texas, the vessel combined a lightweight 195-pound fiberglass hull with a powerful 15-foot cat rig. It was marketed toward single-handed sailors and racing enthusiasts who demanded a boat capable of planing performance without the complexity of a multi-sail sloop.

Sailing Performance & Handling

With a high sail-area-to-displacement ratio, the Man-O-War 15 is a quintessential planing hull. Unlike many of its contemporaries that relied on stayed masts, the Man-O-War utilizes a free-standing, two-piece rotating aluminum mast. According to the original Chrysler Man-O-War Owner’s Manual, this unstayed rig allows the spar to flex under heavy loads, naturally depowering the sail in gusts and helping the boat stay upright.

Handling is characterized by rapid acceleration; the hull features a "modified V" entry that transitions into a flat aft section, allowing it to lift onto a plane in moderate breezes. Once the boat reaches a speed of approximately four knots, the cockpit’s venturi bailer becomes effective at clearing water. One of its most distinctive technical features is the "rotational reefing" system. Because the sail is sleeved over the mast, the sailor can reef by simply rotating the mast in its step, rolling the Dacron sail around the spar to reduce the 85-square-foot sail area by approximately 30%. This makes the boat remarkably versatile for varying wind conditions, though its light weight and low freeboard ensure a "wet" and physically active ride.

Siblings and Variants

The Man-O-War 15 is often compared to its sibling, the Chrysler Mutineer 15, though the two boats serve different segments. While the Man-O-War is a 195-pound cat-rigged dinghy designed for speed and simplicity, the Mutineer 15 is a fractional sloop weighing 410 pounds with a wider 6-foot beam. The Mutineer was intended as a family daysailer or two-person racer, whereas the Man-O-War was built to compete with the Laser and Force 5. Both models share the Macalpine-Downie "conic section" design philosophy, which minimizes wetted surface area but provides less initial stability, requiring the crew to use the molded-in hiking toeholds to keep the boat flat in a breeze.

The Man-O-War has maintained a niche presence in the small-boat "raiding" and endurance sailing community. It gained modern visibility through the "Death and Resurrection of Patriot" narrative, where an owner documented sailing a Man-O-War 15 in the Florida 120, a grueling 120-mile coastal raid. These accounts highlight the boat’s notable "torpedo" tendency; if a sailor fails to keep their weight sufficiently aft in heavy chop, the fine bow has a habit of submarining, though the foam flotation in the hull and mast generally ensures the boat remains buoyant and easy to right.

Known Issues & Buyer’s Checklist

  • Mast Step Stress: The unstayed rig puts significant torque on the fiberglass mast step and the surrounding deck casting. Prospective buyers should check for spider-cracking or structural softening in the cockpit floor and deck where the mast is inserted.
  • Rudder Gudgeon Rust: Technical archives on the Chrysler Sailors forum indicate that the internal tee-nuts used to secure the rudder gudgeons were often made of carbon steel rather than stainless. These can rust away entirely inside the transom, leading to sudden rudder failure.
  • Foam Saturation: The hull was manufactured with "foam-in-place" flotation to prevent sinking. Over decades, this foam can absorb water through hairline cracks or poorly sealed deck hardware, potentially doubling the boat's original 195-pound weight and ruining its performance.
  • Sleeve Sail Wear: Because the sail uses a sleeve instead of a bolt rope or slides, it is prone to wear at the head and tack. Replacement sails can be expensive or require custom loft work since they are not compatible with standard sail-track systems.

Community & Resources

The Chrysler Sailors Association is the primary resource for the Man-O-War 15, providing a digital library of original manufacturer brochures, rigging guides, and technical drawings. This community remains the best source for identifying original hardware and navigating the unique parts requirements of the Plano-built fleet.

The Verdict

The Chrysler Man-O-War 15 remains a fast, affordable, and mechanically simple choice for sailors who enjoy a high-performance dinghy experience.

Pros:

  • Ease of Transport: At under 200 lbs, it is easily trailered by small cars or even car-topped with a dedicated rack.
  • Innovative Rigging: The rotating mast and sleeve sail allow for quick setup and on-the-water reefing.
  • Performance: Capable of easy planing and high speeds compared to other 15-foot daysailers.

Cons:

  • Aging Hardware: Proprietary parts and rusting internal fasteners require diligent maintenance.
  • Low Freeboard: The boat is very wet in a chop and requires constant weight management to prevent submarining.
  • Single-Purpose: Best suited for one or two people; it lacks the stability and space of the sloop-rigged Mutineer.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Daggerboard
Rudder
1x —
Ballast
-
Displacement
195 lbs
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
15 ft
Waterline Length (LWL)
13.42 ft
Beam
5.33 ft
Draft
2.58 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

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

Calculations

Sail Area / Displacement (SA/D) Ratio
40.44
Ballast / Displacement Ratio
Displacement / Length Ratio (D/L) Ratio
36.02
Comfort Ratio
2.33
Capsize Screening Formula
3.68
Hull Speed
4.91 kn