SIGMA 33 OOD

Main

Appendages
Fin w/spade rudder
Construction
FG
First built hull
1979
Hull type
Monohull
Last built hull
1991
Model
MD7A
Sailboat builder
Marine Projects Ltd.
Sailboat designer
David Thomas

Dimensions

Ballast Type
Iron
Ballast weight
1575.0
Beam
3.2
Displacement
4173.0
Draft
1.75
Max Draft
1.75
Overall length
9.91
Waterline length
8.0

Sails

E
3.96
Est. Forestay Length
11.83
Fore area
20.2
I
11.28
J
3.58
Mainsail area
22.95
P
11.58
Total area
43.2

Engine

Engine(s) power
18.0
Engines amount
1
Fuel type
Diesel
Make
Volvo Penta

Performance

Ballast ratio
37.74
Capsize Screening Formula
2.01
Comfort Ratio
22.06
Critical hull speed
6.87
Displacement-length ratio (DLR)
227.07
Upwind sail area to displacement
17.0

Accomodation

The SIGMA 33 OOD (Offshore One Design) is a popular sailing boat that was designed by David Thomas and built by Marine Projects Ltd. in the 1970s. It was specifically designed as a one-design racing yacht, meaning that all boats are built to the same specifications to ensure fair competition.

The SIGMA 33 OOD has a length overall (LOA) of 33 feet (10.06 meters) and a beam of 10 feet (3.05 meters). It features a fin keel and a spade rudder, which provide good stability and maneuverability. The boat has a displacement of around 4,800 kilograms (10,582 pounds) and a sail area of approximately 54 square meters (581 square feet).

One of the key features of the SIGMA 33 OOD is its excellent performance both inshore and offshore. It is known for its ability to handle various weather conditions and its speed on the water. The boat has a reputation for being responsive and easy to handle, making it suitable for both experienced sailors and those new to racing.

The interior of the SIGMA 33 OOD is designed to be functional and comfortable. It typically has a basic layout with a small galley, a saloon area with seating and a table, and a few berths for sleeping. While it may not have all the luxurious amenities of a cruising yacht, it provides enough comfort for short trips or racing events.

Over the years, the SIGMA 33 OOD has gained a strong following and has become a popular choice for racing enthusiasts. It has been used in various regattas and championships, both in the UK and internationally. The boat's design has proven to be enduring, and it continues to be a competitive option in the racing circuit.

Overall, the SIGMA 33 OOD is a well-regarded sailing boat known for its performance, versatility, and competitive nature. Whether you're looking to participate in racing events or enjoy some fast cruising, the SIGMA 33 OOD offers a thrilling sailing experience.

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