Gloucester 18 (Whitecap) Information, Review, Specs

Boat drawing
Make
Whitecap
Model
Gloucester 18
Number Built
Production Year(s)
1974 - 1984

The Gloucester 18 (Whitecap) is a spirited and highly regarded trailerable sailboat, primarily designed for day sailing and light racing. Conceived by the prolific naval architect Harry R. Sindle, this monohull was initially brought to market by Lockley-Newport Boats and later by Gloucester Yachts. It quickly established a reputation for its lively performance and ease of handling, appealing to sailors seeking an accessible and enjoyable sailing experience on lakes and coastal waters.

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The Gloucester 18 (Whitecap) entered production around 1974, with its manufacturing run extending until approximately 1984. It was first introduced as the "Whitecap" under the Lockley-Newport brand, before being re-designated as the "Gloucester 18" when the company transitioned to Gloucester Yachts. It is important to distinguish this model from another Gloucester 18, which was a re-branding of the Buccaneer 18.

Designer Harry R. Sindle envisioned the Gloucester 18 (Whitecap) as a dedicated day sailer, aiming for a design that offered engaging performance in a compact, trailerable package. Its builder, Lockley Newport Boats and its successors, were known for producing sturdy and practical fiberglass sailboats, aligning with the mid-20th century trend towards durable, low-maintenance recreational vessels. The company's manufacturing ethos focused on making sailing accessible, producing boats like the Gloucester 18 (Whitecap) with solid fiberglass hulls and decks.

Sailing Performance and Handling

With a length overall of 18.0 feet and a waterline length of 16.5 feet, the Gloucester 18 (Whitecap) is characterized by its ultralight displacement of 750 pounds, with 125 pounds of ballast. This design contributes to its identity as a very high-performance vessel for its size, making it particularly well-suited for racing.

Equipped with a fractional sloop rig and a centerboard keel, the Gloucester 18 (Whitecap) offers both excellent upwind capability when the board is deployed and a minimal draft of just 0.67 feet when retracted, facilitating easy launch, retrieval, and shallow-water access. While described as stable and stiff, its ultralight nature and design as a performance day sailer suggest it is responsive and agile, offering an exciting ride in various conditions. The boat's reported hull speed is 5.44 knots.

Accommodations and Layout

As a dedicated day sailer, the Gloucester 18 (Whitecap)'s accommodations are intentionally minimalist, prioritizing cockpit space and sailing performance over extensive interior living areas. While specific interior details are limited, boats of this size and purpose typically feature a compact cabin primarily offering storage for gear or very basic shelter. It is designed for short excursions rather than extended cruising, meaning amenities for overnighting are either absent or very spartan. The focus remains on the open-air sailing experience and ease of handling.

Measurements

Construction & Hull

Construction Material
Fiberglass (Solid)
Hull Type
Monohull Sailboat
Keel Type
Centerboard
Rudder
1x —
Ballast
125 lbs
Displacement
750 lbs
Water Capacity
-
Fuel Capacity
-

Engine

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

Rig & Sails

Rig Type
Fractional Sloop
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Main Sail Area
-
Foretriangle Sail Area
-
Total Sail Area (Reported)
176 sqft
Total Sail Area (Calc)
-

Dimensions

LOA
18 ft
LWL
16.5 ft
Beam
6.58 ft
Draft
5 ft
Max Headroom
-
Air Draft
27.75 ft

Calculations

Hull Speed
5.44 kn
Pounds per Inch Immersion
387.93