Wegu Tempo Information, Review, Specs

Wegu Tempo Drawing
Make
Model
Tempo
Builder
Designer
Jack Köper
Number Built
Production Year(s)
1963 - ??

The Tempo is a distinctive 15.5-foot (4.72-meter) scow-hulled dinghy, conceived primarily as a high-performance, two-person boat for home builders. Designed by the South African yachtsman and prolific dinghy designer Jack Köper, the Tempo emerged in the early 1960s as an accessible yet spirited sailing craft. While the provided data associates the Tempo with the builder Wegu, the boat's initial concept and widespread adoption were rooted in its design for do-it-yourself construction using readily available plywood sheets. This focus on home-building, coupled with its engaging sailing characteristics, fostered active sailing fleets across various regions, including South Africa, Germany, and Holland. JSON

History and Design

The Tempo's story began in 1963, when Jack Köper, himself a backyard boat builder, introduced the design. JSON, 4 Köper's philosophy centered on creating a high-performance dinghy that could be constructed by amateur builders, leveraging standard 4x8-foot sheets of plywood. JSON This approach made sailing accessible to a broader audience and contributed to the Tempo's popularity. The defining characteristic of the Tempo is its scow hull form, which features a wide, blunt bow and stern, often described as having "extreme width at a low freeboard height." Despite the often-blocky appearance associated with scows, Köper specifically aimed for a "significantly more speedy hull design" for the Tempo, a characteristic sometimes referred to as a 'needle' shape in its class. The design also permits the use of a single trapeze, indicating its intent as a performance-oriented racing dinghy. JSON

Sailing Performance and Handling

As a lightweight dinghy with a displacement of just 175 pounds and a substantial sail area of 123 square feet, the Tempo is engineered for lively performance. JSON Its scow hull, combined with a centerboard, provides excellent initial stability and allows for shallow water access. JSON, 2 The fractional sloop rig is well-suited for controlling sail shape and power, enabling responsive handling. JSON Reviewers note that the Tempo is slimmer than most comparable dinghies, contributing to its speed potential. For experienced sailors, the Tempo offers "rapid and sporting sailing qualities," particularly in moderate winds (wind force 4 to 5). Its design positions it as a nimble and exciting boat for racing or spirited day sailing. Given its small size and design as an open dinghy, traditional performance ratios like Sail Area to Displacement, Ballast to Displacement, or Displacement to Length are not typically applied, as they are more relevant to larger cruising yachts.

Accommodations and Layout

The Tempo is an open sailing dinghy, designed purely for on-water performance and day sailing rather than extended cruising or overnight stays. Consequently, it offers no interior accommodations, cabins, or standing headroom. JSON The layout is focused entirely on the cockpit, providing space for two crew members to manage the sails and control the boat. This minimalist design emphasizes light weight and maximizes the area for active sailing.

Measurements

Construction & Hull

Construction Material
Fiberglass/Wood Composite
Hull Type
Scow Sailboat
Keel Type
Centerboard
Ballast
-
Displacement
175 lbs
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
15.5 ft
Waterline Length (LWL)
-
Beam
5 ft
Draft
3 ft
Max Headroom
-
Air Draft
22 ft
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)
-
Sail Area
123 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
62.9
Ballast / Displacement Ratio
Displacement / Length Ratio (D/L) Ratio
Comfort Ratio
Capsize Screening Formula
3.58
Hull Speed
— kn