Sigma 33 OOD
Basic data
| Category: | Sailboat |
| Year of construction: | 1984 |
| Length: | 988 cm |
| width: | 320 cm |
| Depth: | 175 cm |
| Material: | Polyester |
| Motorization: | Volvo Penta |
| Berth: |
Kampen, Netherlands
|
Specifications
Sigma 33 OOD (1984) – sporty offshore sailing yacht with character, comfort and strong sailing performance
This 1984 Sigma 33 OOD is a well-known name among enthusiasts of sporty sailing and seaworthy classics. The David Thomas design, built by Marine Projects in Plymouth, has been renowned for decades for its well-balanced combination of speed, control and onboard comfort. With a length of approx. 9.88 metres and a beam of 3.20 metres, this model offers surprisingly generous living space, while the round-bilge GRP hull provides solid, predictable handling on both inland waters and open sea. This particular vessel, hull number 225, has been used on a variety of cruising grounds such as lakes, rivers and sea, which suits the versatile character of the Sigma 33 OOD as both a sporty cruiser and an offshore one-design.
Sigma 33 OOD now in the online auction. Anyone can bid up to and including 20 April 2026.
Sailing characteristics and experience: direct, stable and inviting for long passages
Those who buy a Sigma 33 OOD are often looking for a sailing yacht that feels lively on the helm while still inspiring confidence when the weather picks up. The tiller steering out in the cockpit contributes to a direct steering feel, giving the skipper real contact with the boat. The draft of approx. 1.75 metres provides the grip and stability you would expect from a design that truly comes into its own offshore. This makes the boat interesting for sailors who enjoy performance sailing, as well as for those planning longer trips and looking for a yacht that remains steady on course and predictable.
The sail wardrobe matches that sporty DNA. Three sails are included: jib, mainsail and spinnaker. The mainsail was purchased in February 2026, so the buyer benefits immediately from a fresh, crisp sail shape. The high-performance jib is present but dated, while the spinnaker is in good condition and gives the boat extra options for fast sailing on a broad reach and downwind. The headsail furling system also makes it practical to adjust sail area in changing conditions, increasing comfort and safety underway.
Engine and power supply: Volvo Penta diesel and complete onboard electrics
For harbour manoeuvres and motoring in calm conditions, this Sigma 33 OOD is equipped with a Volvo Penta MD2002 inboard diesel engine (year 2001), 18 hp, two cylinders and approx. 1,000 running hours. The engine is electric start and is connected to a clear set of instruments, including a tachometer. The stated consumption of about 1.5 litres per hour and a 50-litre diesel tank make it suitable for cruising, with a cruising speed around 5 km/h and a maximum of approx. 7 km/h.
Electrically, this sailing yacht is attractively equipped for weekend trips and holidays. Shore power is available, supplemented by a battery charger, inverter and solar panel. There are three batteries on board in total, including a dedicated start battery. This provides flexibility for navigation, lighting and onboard comfort, even when at anchor or overnighting in a quiet bay.
Navigation and equipment: ready for inland waters and coastal cruising
The navigation equipment on board is broadly usable and aligns with what many buyers look for in a sailing yacht of this size. You’ll find GPS, chartplotter, compass, depth sounder, log/speedometer, wind instrument, VHF radio and navigation lights. This makes the vessel suitable for both inland waterways and coastal areas, allowing you to plan and sail with greater peace of mind, especially on longer day trips or in variable conditions.
On deck, the equipment is practically arranged. The cockpit tent increases comfort in the cockpit in cooler weather or rain, while the guardrails, swim ladder, fenders and lines contribute to safe use in harbour and underway. Notable are the two stern seats at the back of the cockpit, which provide extra visibility while sailing and are pleasant on longer passages. The anchor is present and fitted with chain, suitable for anchoring in sheltered spots.
Interior and comfort: headroom, berths and a complete galley
Inside, the Sigma 33 OOD offers headroom of approx. 1.86 metres, making time on board comfortable for a wide range of people. The layout is designed for both conviviality and functionality, with a spacious dinette, chart table and ample storage behind and under settees and berths. There are four fixed berths and additional options to expand to seven berths, as a settee can be converted into a double berth. This makes the yacht attractive for couples wanting space, as well as for families or friends planning weekend getaways.
The galley is equipped with a cooker, oven and the basic facilities you would expect for self-sufficient stays on board. There is a 180-litre water tank, which is convenient for multi-day trips. The toilet is manual with a hand pump. For extra comfort in spring and autumn, a heater is fitted, keeping the boat appealing outside the summer months. In addition, there is a Bluetooth sound system, both inside and outside, adding to the atmosphere on board during relaxed evenings in harbour or at anchor.
Maintenance and points of attention: recent work and transparent information
The boat was taken out of the water for maintenance in 2025 and received an antifouling treatment that same year. No indications of osmosis have been reported. In addition, the hull was thoroughly addressed and repainted in 2024, enhancing the appearance of this classic Sigma 33 OOD. Documentation with maintenance history and various invoices for purchases and work is available, which is an important plus for many buyers when purchasing a used sailing yacht.
A known point of attention is that the upholstery around the windows in the cabin may need replacing. This is a manageable cosmetic job that a new owner can carry out to their own taste, further personalising the interior.
All in all, this Sigma 33 OOD is an attractive choice for anyone looking for a sporty sailing yacht with offshore roots, a complete equipment package, a recent sail upgrade and an interior that invites longer passages, weekend trips and active sailing on both inland waters and at sea.
VIEWING DAY INFORMATION
- The viewing day of this Sigma 33 OOD is on Saturday 18 April 2026 van 10:00 until 12:00 in Kampen (NL).
ADDITIONAL INFORMATION
- We advise making use of the viewing day.
- The boat is in the water.
- This boat is delivered without a trailer.
- This boat is sold under general auction conditions.
- This concerns a public auction, which means that the purchase cannot be returned based on the legal right of withdrawal.
| Brand | Sigma |
| Type | 33 OOD |
| Length | 988 |
| Width | 320 |
| Depth | 175 |
| Clearance height | 1500 |
| Year of construction | 1984 |
| Material | Polyester |
| Number of sleeping places (fixed) | 4 |
| Number of sleeping places (extra) | 3 |
| Standing height indoors | 186 |
| Last antifouling treatment | 2025 |
| Hull shape | Roundbilge |
| Control | Helm |
| Location control | Outside |
| Rudder | N/A |
| Separate dining area | |
| Cooker | |
| Curtains | |
| Oven | |
| Water tank capacity in liters | 180 |
| Toilet | Manual |
| Does the toilet drain directly into the open water | Yes |
| Heating | Stove |
| Dinghy | No |
| Self-draining cockpit | |
| Bilge pump | Manual |
| Is a trailer included? | No |
| Weight (kg) | 4173 |
| Anchor(s) | 1 |
| Anchor attachment | Chain |
| Windlass | N/A |
| Cockpit tent | |
| Push- and pulpit(s) | |
| Fenders and lines | |
| Sea rails | |
| Swimming ladder |
| Number of engines | 1 |
| Is the engine operational | The engine is operational |
| Start typing | Electric |
| Maximum speed | kilometers per hour | 7 |
| Engine type | Inboard |
| Brand motor | Volvo Penta |
| Model engine | MD2002 |
| Power (hp) | 18 |
| Number of cylinders | 2 |
| Year of construction of the engine | 2001 |
| Engine hours | 1000 |
| Fuel | Diesel |
| Consumption | 1.5 |
| Tank capacity in liters | 50 |
| Tachometer | |
| Bow thruster | n/a |
| Number of batteries present | 3 |
| Battery charger | |
| Inverter | |
| Shore power | |
| Solar panel | |
| 12V | |
| 220V |
| Number of masts | 1 |
| Mast material | Aluminum |
| Number of sails | 3 |
| State of the sails | Good |
| Jib | |
| Main sail | |
| Spinnaker | |
| Furling foresail |
Sigma 33 OOD (1984) – sporty offshore sailing yacht with character, comfort and strong sailing performance
This 1984 Sigma 33 OOD is a well-known name among enthusiasts of sporty sailing and seaworthy classics. The David Thomas design, built by Marine Projects in Plymouth, has been renowned for decades for its well-balanced combination of speed, control and onboard comfort. With a length of approx. 9.88 metres and a beam of 3.20 metres, this model offers surprisingly generous living space, while the round-bilge GRP hull provides solid, predictable handling on both inland waters and open sea. This particular vessel, hull number 225, has been used on a variety of cruising grounds such as lakes, rivers and sea, which suits the versatile character of the Sigma 33 OOD as both a sporty cruiser and an offshore one-design.
Sigma 33 OOD now in the online auction. Anyone can bid up to and including 20 April 2026.
Sailing characteristics and experience: direct, stable and inviting for long passages
Those who buy a Sigma 33 OOD are often looking for a sailing yacht that feels lively on the helm while still inspiring confidence when the weather picks up. The tiller steering out in the cockpit contributes to a direct steering feel, giving the skipper real contact with the boat. The draft of approx. 1.75 metres provides the grip and stability you would expect from a design that truly comes into its own offshore. This makes the boat interesting for sailors who enjoy performance sailing, as well as for those planning longer trips and looking for a yacht that remains steady on course and predictable.
The sail wardrobe matches that sporty DNA. Three sails are included: jib, mainsail and spinnaker. The mainsail was purchased in February 2026, so the buyer benefits immediately from a fresh, crisp sail shape. The high-performance jib is present but dated, while the spinnaker is in good condition and gives the boat extra options for fast sailing on a broad reach and downwind. The headsail furling system also makes it practical to adjust sail area in changing conditions, increasing comfort and safety underway.
Engine and power supply: Volvo Penta diesel and complete onboard electrics
For harbour manoeuvres and motoring in calm conditions, this Sigma 33 OOD is equipped with a Volvo Penta MD2002 inboard diesel engine (year 2001), 18 hp, two cylinders and approx. 1,000 running hours. The engine is electric start and is connected to a clear set of instruments, including a tachometer. The stated consumption of about 1.5 litres per hour and a 50-litre diesel tank make it suitable for cruising, with a cruising speed around 5 km/h and a maximum of approx. 7 km/h.
Electrically, this sailing yacht is attractively equipped for weekend trips and holidays. Shore power is available, supplemented by a battery charger, inverter and solar panel. There are three batteries on board in total, including a dedicated start battery. This provides flexibility for navigation, lighting and onboard comfort, even when at anchor or overnighting in a quiet bay.
Navigation and equipment: ready for inland waters and coastal cruising
The navigation equipment on board is broadly usable and aligns with what many buyers look for in a sailing yacht of this size. You’ll find GPS, chartplotter, compass, depth sounder, log/speedometer, wind instrument, VHF radio and navigation lights. This makes the vessel suitable for both inland waterways and coastal areas, allowing you to plan and sail with greater peace of mind, especially on longer day trips or in variable conditions.
On deck, the equipment is practically arranged. The cockpit tent increases comfort in the cockpit in cooler weather or rain, while the guardrails, swim ladder, fenders and lines contribute to safe use in harbour and underway. Notable are the two stern seats at the back of the cockpit, which provide extra visibility while sailing and are pleasant on longer passages. The anchor is present and fitted with chain, suitable for anchoring in sheltered spots.
Interior and comfort: headroom, berths and a complete galley
Inside, the Sigma 33 OOD offers headroom of approx. 1.86 metres, making time on board comfortable for a wide range of people. The layout is designed for both conviviality and functionality, with a spacious dinette, chart table and ample storage behind and under settees and berths. There are four fixed berths and additional options to expand to seven berths, as a settee can be converted into a double berth. This makes the yacht attractive for couples wanting space, as well as for families or friends planning weekend getaways.
The galley is equipped with a cooker, oven and the basic facilities you would expect for self-sufficient stays on board. There is a 180-litre water tank, which is convenient for multi-day trips. The toilet is manual with a hand pump. For extra comfort in spring and autumn, a heater is fitted, keeping the boat appealing outside the summer months. In addition, there is a Bluetooth sound system, both inside and outside, adding to the atmosphere on board during relaxed evenings in harbour or at anchor.
Maintenance and points of attention: recent work and transparent information
The boat was taken out of the water for maintenance in 2025 and received an antifouling treatment that same year. No indications of osmosis have been reported. In addition, the hull was thoroughly addressed and repainted in 2024, enhancing the appearance of this classic Sigma 33 OOD. Documentation with maintenance history and various invoices for purchases and work is available, which is an important plus for many buyers when purchasing a used sailing yacht.
A known point of attention is that the upholstery around the windows in the cabin may need replacing. This is a manageable cosmetic job that a new owner can carry out to their own taste, further personalising the interior.
All in all, this Sigma 33 OOD is an attractive choice for anyone looking for a sporty sailing yacht with offshore roots, a complete equipment package, a recent sail upgrade and an interior that invites longer passages, weekend trips and active sailing on both inland waters and at sea.
VIEWING DAY INFORMATION
- The viewing day of this Sigma 33 OOD is on Saturday 18 April 2026 van 10:00 until 12:00 in Kampen (NL).
ADDITIONAL INFORMATION
- We advise making use of the viewing day.
- The boat is in the water.
- This boat is delivered without a trailer.
- This boat is sold under general auction conditions.
- This concerns a public auction, which means that the purchase cannot be returned based on the legal right of withdrawal.
| Brand | Sigma |
| Type | 33 OOD |
| Length | 988 |
| Width | 320 |
| Depth | 175 |
| Clearance height | 1500 |
| Year of construction | 1984 |
| Material | Polyester |
| Number of sleeping places (fixed) | 4 |
| Number of sleeping places (extra) | 3 |
| Standing height indoors | 186 |
| Last antifouling treatment | 2025 |
| Hull shape | Roundbilge |
| Control | Helm |
| Location control | Outside |
| Rudder | N/A |
| Separate dining area | |
| Cooker | |
| Curtains | |
| Oven | |
| Water tank capacity in liters | 180 |
| Toilet | Manual |
| Does the toilet drain directly into the open water | Yes |
| Heating | Stove |
| Dinghy | No |
| Self-draining cockpit | |
| Bilge pump | Manual |
| Is a trailer included? | No |
| Weight (kg) | 4173 |
| Anchor(s) | 1 |
| Anchor attachment | Chain |
| Windlass | N/A |
| Cockpit tent | |
| Push- and pulpit(s) | |
| Fenders and lines | |
| Sea rails | |
| Swimming ladder |
| Number of engines | 1 |
| Is the engine operational | The engine is operational |
| Start typing | Electric |
| Maximum speed | kilometers per hour | 7 |
| Engine type | Inboard |
| Brand motor | Volvo Penta |
| Model engine | MD2002 |
| Power (hp) | 18 |
| Number of cylinders | 2 |
| Year of construction of the engine | 2001 |
| Engine hours | 1000 |
| Fuel | Diesel |
| Consumption | 1.5 |
| Tank capacity in liters | 50 |
| Tachometer | |
| Bow thruster | n/a |
| Number of batteries present | 3 |
| Battery charger | |
| Inverter | |
| Shore power | |
| Solar panel | |
| 12V | |
| 220V |
| Number of masts | 1 |
| Mast material | Aluminum |
| Number of sails | 3 |
| State of the sails | Good |
| Jib | |
| Main sail | |
| Spinnaker | |
| Furling foresail |
