Gulfstar 36 MS (Twin Cabin) Information, Review, Specs

Boat drawing
Make
Twin Cabin
Model
Gulfstar 36 MS
Number Built
Production Year(s)
1971 - 1973

The Gulfstar 36 MS (Twin Cabin) stands as a notable early offering from Gulfstar Yachts, a builder established by fiberglass pioneer Vince Lazzara. Designed by Vince Lazzara himself, alongside Richard C. Lazzara, this 36-foot motor-sailer was conceived during a period when the burgeoning Florida-based company aimed to make cruising vessels more accessible to a broader market, 10]. Combining the comforts of a powerboat with the efficiency of sail, the Twin Cabin variant offered a versatile platform for coastal exploration and comfortable living, quickly establishing Gulfstar's reputation for practical and comfortable cruising designs.

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History and Design

The Gulfstar 36 MS was produced between 1971 and 1973, marking its place as one of Gulfstar's foundational models. Vince Lazzara, having co-founded Columbia Yachts, embarked on Gulfstar with a vision for a new line of cruising boats, and the 36-foot motor-sailer was among his initial ventures, 9]. The company's design philosophy under Lazzara focused on accessible and comfortable vessels, adapting to market demands, 8].

During this early era, Gulfstar was known for its rapid expansion as a fiberglass boat manufacturer. While the builder article notes that early models sometimes faced scrutiny regarding workmanship, including Formica interiors and ballast consisting of iron in a concrete slurry, the for the Gulfstar 36 MS (Twin Cabin) specifically indicates lead ballast 2, 4, Builder Article. The 36 MS was offered with significant variations, available in both "Twin Cabin" (center cockpit) and "Salon" (pilot house) configurations, and could be rigged as either a masthead sloop or a ketch, catering to diverse sailing preferences.

Sailing Performance and Handling

With a length overall of 36 feet and a waterline length of 30.83 feet, the Gulfstar 36 MS (Twin Cabin) exhibits characteristics typical of a moderate-to-heavy displacement motor-sailer. Its displacement of 15,000 pounds translates to a Displacement to Length ratio of approximately 228.75, placing it firmly in the moderate displacement category for a cruising boat. This suggests a vessel designed for a comfortable motion in a seaway rather than outright speed.

The Sail Area to Displacement ratio, calculated at a relatively low 13.26, indicates that the Gulfstar 36 MS is an underpowered sailboat, suggesting it would perform best in moderate to stronger winds and rely on its 80 horsepower diesel engine for auxiliary power, particularly in light air or when motoring. The boat features a long keel, which contributes significantly to its directional stability, making it track well on a course. However, this design characteristic also means it may be less agile in tight maneuvering situations, such as within a harbor. The specific ballast weight for the Gulfstar 36 MS is not consistently reported in available data, though the material is specified as lead.

Accommodations and Layout

The interior of the Gulfstar 36 MS (Twin Cabin) was designed for cruising comfort, offering a straightforward layout characteristic of its era. As a "Twin Cabin" model, it typically features a center cockpit arrangement which allows for two distinct sleeping areas. Common floorplans included a V-berth forward, providing a private cabin, and twin berths in a spacious aft stateroom. Descriptions suggest a large aft cabin, often with an en-suite head, enhancing privacy and liveaboard appeal for a ketch-rigged motor sailor configuration, which fits the Twin Cabin description.

While specific headroom figures are not consistently available, the focus was on maximizing livable space. Early Gulfstar interiors, as noted in the builder's history, often featured Formica for durability and ease of maintenance. Owners should be aware that decks of this era often included plywood cores, necessitating careful inspection for potential water intrusion.

Owner's Perspectives

Owners of the Gulfstar 36 MS frequently praise its robust construction, stemming from its solid fiberglass hull. Many find them to be capable "bluewater boats" for those seeking an affordable entry into long-distance cruising, provided they are willing to commit to maintenance and upgrades. The long keel design contributes to a comfortable and stable motion, particularly in choppy conditions.

However, common age-related issues noted by owners include potential deck core moisture due to the use of plywood cores in the decks, and the possibility of blistering (osmosis) in the solid fiberglass hull. As with many vessels of this vintage, original diesel engines may require significant attention or replacement due to age. Some early Gulfstars also faced general fiberglassing problems, which owners should be vigilant about. Despite these potential challenges, the enduring presence and active community surrounding these vessels attest to their lasting appeal and the fundamental soundness of their design.

Measurements

Construction & Hull

Construction Material
Fiberglass (Solid)
Hull Type
Monohull Sailboat
Keel Type
Long
Rudder
1x —
Ballast
- (Lead)
Displacement
15000 lbs
Water Capacity
100 gal
Fuel Capacity
105 gal

Engine

Engine Make
Engine Model
Engine Type
Engine HP
80
Engine Count
1
Drive Type
Fuel Type
Diesel
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Masthead Sloop
P (Main Luff)
31.7 ft
E (Main Foot)
16.38 ft
I (Foretriangle Height)
38.17 ft
J (Foretriangle Base)
12.87 ft
Forestay Length (est)
40.28 ft
Main Sail Area
259.62 sqft
Foretriangle Sail Area
245.62 sqft
Total Sail Area (Reported)
505 sqft
Total Sail Area (Calc)
505.25 sqft

Dimensions

LOA
36 ft
LWL
30.83 ft
Beam
12 ft
Draft
3 ft
Max Headroom
-
Air Draft
43 ft

Calculations

Hull Speed
7.44 kn
Pounds per Inch Immersion
1