Grundel 735 now in the online auction. everyone can bid until 15 December 2025.
Grundel 735 Flat-bottomed Boat from 1962 – Traditional Sailing with Character
General Overview of the Grundel
The Grundel is a classic flat-bottomed sailboat, built in 1962 at the Kooijman and de Vries shipyard. This yard is known for its traditional shipbuilding and the creation of characterful ships with a shallow draft, suitable for shallow inland waters. The Grundel has a length of 7.35 meters, a width of 2.45 meters, and a draft of only 45 centimeters. Thanks to this shallow draft, it is possible to navigate areas with this ship that are inaccessible to many other boats, such as the narrow creeks and shallow lakes of the Biesbosch.
The hull is made of steel, which contributes to the robustness of the ship. The clearance height is also 7.35 meters, making the ship suitable for a wide range of inland waters. The standing height inside is 1.40 meters, meaning the interior is mainly suitable for sitting use. There is space for four people to sleep, with two fixed berths and two additional berths.
Grundel 735 now in the online auction. Everyone can bid until December 15, 2025.
Interior and Comfort Onboard
The interior of the Grundel is functionally arranged. There is a two-burner stove available, as well as mattresses for the berths. The water tank has a capacity of 100 liters. There is no toilet on board. The living space is limited but offers enough seating for four people. The low standing height makes a prolonged stay on board less suitable for those seeking a lot of interior space, but for short trips or weekend stays, the ship offers sufficient comfort.
The boat is equipped with a deck cover, fenders, and lines. This equipment allows the ship to be safely moored and protected against weather influences.Â
Motorization and Sailing Characteristics
The Grundel is equipped with a Nanni inboard diesel engine, type 3.9 HE, with a power of 21 hp. This engine, built in 1994, has approximately 450 operating hours and is started electrically. The engine is suitable for sailing against the current and offers a cruising speed of about 12 km/h, with a maximum speed of 15 km/h. The fuel tank has a capacity of 50 liters.
A notable feature of this Grundel is the presence of an electric bow thruster (installed in 2023). This significantly facilitates maneuvering, especially when docking or passing through locks. The boat has two batteries with a total capacity of 150 Ah, which are charged via an alternator and battery charger. The electrical system operates on 12 volts.
Sailing Characteristics and Use
Sailing with a flat-bottomed boat like this Grundel requires active involvement from the crew. In addition to operating the sails, the leeboards must also be operated manually. This makes sailing a physical and engaging experience. The boat has mainly been used on inland waters, lakes, ponds, and rivers, and is suitable for short trips or weekend stays.
The Grundel is particularly suitable for enthusiasts of traditional sailing and for those seeking adventure in hard-to-reach sailing areas. Thanks to the shallow draft, it is possible to sail in shallow creeks and nature areas where other boats cannot go. The poles on board make it possible to navigate even in densely vegetated areas.
Documentation
Documentation is available regarding the inboard engine. The last time the boat was taken out of the water for maintenance and antifouling was in 2025.
Experiences and Particularities
The current owner describes the Grundel as a ship with which unique experiences have been gained, such as overnight stays on remote islands in the Biesbosch. The combination of a strong engine, shallow draft, and traditional sailing characteristics makes the ship suitable for adventurous trips in nature. The bow thruster contributes to ease of use, especially when docking and maneuvering in tight spaces.
Conclusion
This Grundel from 1962 offers an authentic sailing experience for those who love traditional sailing on inland waters. With its steel hull, functional equipment, and characteristic sailing properties, the ship is suitable for short trips and adventurous explorations of shallow sailing areas. The combination of a working diesel engine, electric bow thruster, and manual operation of the sails and leeboards makes sailing an active endeavor. The Grundel is a ship with history and character, inviting discovery trips on the water.
