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- Sailboat Guide
Grinde is a 26 ′ 10 ″ / 8.2 m monohull sailboat designed by Peter Bruun and built by Peter Bruun (DEN) between 1974 and 1989.
Rig and Sails
Auxilary power, accomodations, calculations.
The theoretical maximum speed that a displacement hull can move efficiently through the water is determined by it's waterline length and displacement. It may be unable to reach this speed if the boat is underpowered or heavily loaded, though it may exceed this speed given enough power. Read more.
Classic hull speed formula:
Hull Speed = 1.34 x √LWL
Max Speed/Length ratio = 8.26 ÷ Displacement/Length ratio .311 Hull Speed = Max Speed/Length ratio x √LWL
Sail Area / Displacement Ratio
A measure of the power of the sails relative to the weight of the boat. The higher the number, the higher the performance, but the harder the boat will be to handle. This ratio is a "non-dimensional" value that facilitates comparisons between boats of different types and sizes. Read more.
SA/D = SA ÷ (D ÷ 64) 2/3
- SA : Sail area in square feet, derived by adding the mainsail area to 100% of the foretriangle area (the lateral area above the deck between the mast and the forestay).
- D : Displacement in pounds.
Ballast / Displacement Ratio
A measure of the stability of a boat's hull that suggests how well a monohull will stand up to its sails. The ballast displacement ratio indicates how much of the weight of a boat is placed for maximum stability against capsizing and is an indicator of stiffness and resistance to capsize.
Ballast / Displacement * 100
Displacement / Length Ratio
A measure of the weight of the boat relative to it's length at the waterline. The higher a boat’s D/L ratio, the more easily it will carry a load and the more comfortable its motion will be. The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more.
D/L = (D ÷ 2240) ÷ (0.01 x LWL)³
- D: Displacement of the boat in pounds.
- LWL: Waterline length in feet
Comfort Ratio
This ratio assess how quickly and abruptly a boat’s hull reacts to waves in a significant seaway, these being the elements of a boat’s motion most likely to cause seasickness. Read more.
Comfort ratio = D ÷ (.65 x (.7 LWL + .3 LOA) x Beam 1.33 )
- D: Displacement of the boat in pounds
- LOA: Length overall in feet
- Beam: Width of boat at the widest point in feet
Capsize Screening Formula
This formula attempts to indicate whether a given boat might be too wide and light to readily right itself after being overturned in extreme conditions. Read more.
CSV = Beam ÷ ³√(D / 64)
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Review of Grinde
Basic specs..
Both the hull and the deck is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season. And outside the sailing season, just bottom cleaning and perhaps anti-fouling painting once a year - a few hours of work, that's all. The deck is a double deck which improves the indoor climate.
The interior is like many other boats made of mahogany. Mahogany belongs to the hardwood species, known for being water-repellent and resistant to decay. It has an attractive wood grain and holds wood polish and varnish well. The boat is equipped with one cabin, 7 berths, a galley, 90.0 liter fresh water capacity and toilet facility. Note: the boat has also been sold to be self-made/-interiored, which means that the quality of each boat may vary.
The boat equipped with a masthead rig. The advantage of a masthead rig is its simplicity and the fact that a given sail area - compared with a fractional rig - can be carried lower and thus with less heeling moment.
The Grinde is equipped with a fin keel. The fin keel is the most common keel and provides splendid manoeuvrability. The downside is that it has less directional stability than a long keel.
The keel is made of iron. Many people prefer lead keel in favour of iron. The main argument is that lead is much heavier than iron and a lead keel can therefore be made smaller which again result in less wet surface, i.e. less drag. In fact iron is quite heavy, just 30% less heavy than lead, so the advantage of a lead keel is often overstated. As the surface of a fin type keel is just a fraction of the total wet surface, the difference between an iron keel and a lead keel can in reality be ignored for cruising yachts.
Grinde can enter most marinas as the draft is just about 1.70 - 1.80 meter (5.58 - 5.88 ft) dependent on the load. See immersion rate below.
The boat is typically equipped with an inboard Bukh DV10 diesel engine at 10 hp (7 kW). The speed is 6.0 knots.
The transmission is a shaft drive. A shaft drive will in the long run require less maintenance than other types of drive e.g. a sail drive.
The fuel tank, which is made of steel, has a capacity of 30.0 liters (7 US gallons, 6 imperial gallons).
Sailing characteristics
This section covers widely used rules of thumb to describe the sailing characteristics. Please note that even though the calculations are correct, the interpretation of the results might not be valid for extreme boats.
What is Capsize Screening Formula (CSF)?
The capsize screening value for Grinde is 2.07, indicating that this boat would not be accepted to participate in ocean races.
What is Theoretical Maximum Hull Speed?
The theoretical maximal speed of a displacement boat of this length is 6.7 knots. The term "Theoretical Maximum Hull Speed" is widely used even though a boat can sail faster. The term shall be interpreted as above the theoretical speed a great additional power is necessary for a small gain in speed.
The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Grinde is about 158 kg/cm, alternatively 889 lbs/inch. Meaning: if you load 158 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 889 lbs cargo on the boat it will sink 1 inch.
Sailing statistics
This section is statistical comparison with similar boats of the same category. The basis of the following statistical computations is our unique database with more than 26,000 different boat types and 350,000 data points.
What is Motion Comfort Ratio (MCR)?
What is L/B (Length Beam Ratio)?
What is a Ballast Ratio?
What is Displacement Length Ratio?
What is SA/D (Sail Area Displacement ratio)?
What is Relative Speed Performance?
Maintenance
When buying anti-fouling bottom paint, it's nice to know how much to buy. The surface of the wet bottom is about 27m 2 (290 ft 2 ). Based on this, your favourite maritime shop can tell you the quantity you need.
Are your sails worn out? You might find your next sail here: Sails for Sale
If you need to renew parts of your running rig and is not quite sure of the dimensions, you may find the estimates computed below useful.
| Usage | Length | Diameter | ||
| Mainsail halyard | 26.3 m | (86.3 feet) | 8 mm | (5/16 inch) |
| Jib/genoa halyard | 26.3 m | (86.3 feet) | 8 mm | (5/16 inch) |
| Spinnaker halyard | 26.3 m | (86.3 feet) | 8 mm | (5/16 inch) |
| Jib sheet | 8.2 m | (26.9 feet) | 10 mm | (3/8 inch) |
| Genoa sheet | 8.2 m | (26.9 feet) | 10 mm | (3/8 inch) |
| Mainsheet | 20.5 m | (67.3 feet) | 10 mm | (3/8 inch) |
| Spinnaker sheet | 18.0 m | (59.2 feet) | 10 mm | (3/8 inch) |
| Cunningham | 3.0 m | (9.8 feet) | 8 mm | (5/16 inch) |
| Kickingstrap | 6.0 m | (19.7 feet) | 8 mm | (5/16 inch) |
| Clew-outhaul | 6.0 m | (19.7 feet) | 8 mm | (5/16 inch) |
This section is reserved boat owner's modifications, improvements, etc. Here you might find (or contribute with) inspiration for your boat.
Do you have changes/improvements you would like to share? Upload a photo and describe what you have done.
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Gecko Sailing
Solo young woman explores the world on her 27 foot sloop
About My Boat
Gecko is a Grinde 27 foot double ender sloop. This line of boats was designed and built in Denmark for weekend and/or offshore cruising. Gecko has a fin keel, a transom-hung rudder, and a keel-stepped mast.
Gecko is equipped with a Bukh 10 hp inboard diesel
Gecko holds 50 gallons of water and 10 gallons of diesel
Monitor windvane for self-steering
Gecko currently has two hank-on jibs, and a main with three reef points. I converted from roller-furling to hank-on when I redid all my standing rigging
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The Grinde is a 26.9ft masthead sloop designed by Peter Bruun and built in fiberglass between 1974 and 1989.
580 units have been built..
The Grinde is a moderate weight sailboat which is slightly under powered. It is very stable / stiff and has a low righting capability if capsized. It is best suited as a coastal cruiser. The fuel capacity is originally very small. There is a very short water supply range.
Grinde for sale elsewhere on the web:
Main features
| Model | Grinde | ||
| Length | 26.90 ft | ||
| Beam | 10.24 ft | ||
| Draft | 5.58 ft | ||
| Country | ?? | ||
| Estimated price | $ 0 | ?? |
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| Sail area / displ. | 15.83 | ||
| Ballast / displ. | 45.71 % | ||
| Displ. / length | 222.32 | ||
| Comfort ratio | 21.08 | ||
| Capsize | 2.08 |
| Hull type | Monohull fin keel with transom hung rudder | ||
| Construction | Fiberglass | ||
| Waterline length | 24.93 ft | ||
| Maximum draft | 5.58 ft | ||
| Displacement | 7716 lbs | ||
| Ballast | 3527 lbs | ||
| Hull speed | 6.69 knots |
We help you build your own hydraulic steering system - Lecomble & Schmitt
| Rigging | Masthead Sloop | ||
| Sail area (100%) | 385 sq.ft | ||
| Air draft | 0 ft | ?? | |
| Sail area fore | 224.04 sq.ft | ||
| Sail area main | 161.43 sq.ft | ||
| I | 36.91 ft | ||
| J | 12.14 ft | ||
| P | 32.81 ft | ||
| E | 9.84 ft |
| Nb engines | 1 | ||
| Total power | 10 HP | ||
| Fuel capacity | 8 gals |
Accommodations
| Water capacity | 24 gals | ||
| Headroom | 0 ft | ||
| Nb of cabins | 0 | ||
| Nb of berths | 0 | ||
| Nb heads | 0 |
Builder data
| Builder | ?? | ||
| Designer | Peter Bruun | ||
| First built | 1974 | ||
| Last built | 1989 | ||
| Number built | 580 |
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In this Dutch video I give you a tour around my boat.
The Grinde is designed in 1973 by Peter Bruun The Grinde is designed in 1973 by Peter Bruun. as a spacious family-friendly boat and for racing in the IOR half-tonner class. From 1974 to 1989 a total of 580 Grindes were built at the Flipper Scow shipyard in Denmark. My Grinde has construction number 365 and is from 1977.
The Grinde family consists of the Kaskelot 33 feet, Grinde 27 feet, Speakhugger 24 feet, Marsvin 22 feet. (from left to right in the photo above). The Grinde is a stable boat with a keel of 1.70 meters and can handle a lot of wind and waves and comfortably sail close hauled. Weight 3600 kg, ballast share 45% (1600 kg). The hull speed is 6.6 knots.
Fourth owner Jacqueline Evers
I have been the owner of this beautiful ship since October 10, 2020. And a 44-year-old ship, I now know, needs maintenance. Real maintenance. And those are several projects. This ship had a lot of things, but little by little it stops working or really needs to be replaced. Read more about my boatprojects .
Third owner from 2013 – 2020
Pim Vermeulen bought the boat in 2012/2013 and moored it in Hindeloopen. He called the boat SAS, from ‘being in your mood’, but more importantly, his mother Saskia was always called Sas and that she died during his childhood. And therefore the most important reason for Pim to name his boat SAS.
Second owner from 2000 – 2012
Ton van Tunen became the second owner in 2000. The boat was moored in Hoorn until 2011 and then went to Seaport Marina in IJmuiden. He put a new engine in it in 2010 and bought a new mainsail, genoa 1 & 2 from Sander sails in Lymington. Both sails are tri-radial just like the mainsail. He had the mainsail expanded to the maximum by Arjen Kooij Haarlem.
He has drilled and tapped stainless steel bolts at the keel attachment to create a zipper effect, which makes the keel very stiff under the boat and to minimize the leverage effect. The keel bolts are in line as standard. This gives you a leverage effect while sailing. You always saw that the keels were splitting at Grindes. The sealant edge that was applied as standard by the Bruun shipyard was no longer sufficient, causing water to pool above the keel. The previous owners had already done this modification sometime in the eighties. He had the transition from cast iron keel to hull laminated closed. So technically perfect.
He sold the boat in 2012/2013 to purchase a larger boat. He has updated the Grinde quite a bit over the years. When he bought the boat, things were quite dated. But… the base was great 👌🏽. He chose the ship name “green pepper” because he had previously sailed in the States on a red pepper. That owner then told him “Hot and Spicy 🌶 “. He always remembered that and thought it was a very nice name. Only he had a green pepper 😁 made on the boat. He still loves the boat. And gives me all kinds of practical information and tips.
First owner from 1977 – 2010
Mr and Mrs van de Brink were the first owners and bought the boat in 1977/1978. The Grinde was exhibited like this at the HISWA at the time. That made an impression at the time, because the boat was turned upside down to show the whale shape. They bought the boat through the dealer and picked it up in Denmark 🇩🇰 and sailed it to the Netherlands. She named him Yin III Yang. They had three children and the boat was moored in Marina Muiderzand. Markermeer, IJsselmeer and the Wadden were their sailing areas.
Peter Bruun Grinde
Performance, accomodation.
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Posted 2024-09-23 20:50
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27' double ended Grinde sailboat - $9,500 (Little Deer Isle)
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27' double ended Grinde sailboat - boats - by owner - marine sale -...
27' Grinde sailboat. Danish built fiberglass sloop (see You Tube- "wind hippie sailing"- this is sistership). Bukh DV-10 diesel (hours unknown) with parts engine. Two mainsails and a Genoa. Furlex...
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Grinde - Sailboat Data, Parts & Rigging
Sailboat data, rig dimensions and recommended sail areas for Grinde sailboat. Tech info about rigging, halyards, sheets, mainsail covers and more.
Sailboat Data directory for over 8,000 sailboat designs and manufacturers. Direct access to halyards lengths, recommended sail areas, mainsail cover styles, standing rigging fittings, and lots more for all cruising and racing sailboats.
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COMMENTS
A boat with a BN of 1.6 or greater is a boat that will be reefed often in offshore cruising. Derek Harvey, "Multihulls for Cruising and Racing", International Marine, Camden, Maine, 1991, states that a BN of 1 is generally accepted as the dividing line between so-called slow and fast multihulls.
Grinde is a 26′ 10″ / 8.2 m monohull sailboat designed by Peter Bruun and built by Peter Bruun (DEN) between 1974 and 1989. ... The lower a boat's ratio is, the less power it takes to drive the boat to its nominal hull speed or beyond. Read more. Formula. D/L = (D ÷ 2240) ÷ (0.01 x LWL)³ D: Displacement of the boat in pounds. LWL ...
Grinden was designed in 1973 as a spacious family-friendly boat and for racing with a view to the IOR half-ton class. It showed its superb sailing qualities ...
The SA/D for Grinde with ISO 8666 reference sail is 15.5, with a 135% genua the SA/D is 18.7. The SA/D ratio indicates that it is faster than 42% of all similar sailboat designs in light wind. The Grinde has more rig than 21% of all similar sailboats, which indicates that the boat is significantly underrigged.
The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.
Gecko is a Grinde 27 foot double ender sloop. This line of boats was designed and built in Denmark for weekend and/or offshore cruising. Gecko has a fin keel, a transom-hung rudder, and a keel-stepped mast. Gecko is equipped with a Bukh 10 hp inboard diesel. Solar panels as primary energy source. Gecko holds 50 gallons of water and 10 gallons ...
The Grinde is a 26.9ft masthead sloop designed by Peter Bruun and built in fiberglass between 1974 and 1989. 580 units have been built. The Grinde is a moderate weight sailboat which is slightly under powered. It is very stable / stiff and has a low righting capability if capsized. It is best suited as a coastal cruiser.
The Grinde family consists of the Kaskelot 33 feet, Grinde 27 feet, Speakhugger 24 feet, Marsvin 22 feet. (from left to right in the photo above). The Grinde is a stable boat with a keel of 1.70 meters and can handle a lot of wind and waves and comfortably sail close hauled. Weight 3600 kg, ballast share 45% (1600 kg).
Sailing On My Littlebrother's 27-Ft "Grinde" Sailboat. He Just Bought The Boat, His First Sailboat | Hull No. 18 Build In Denmark In 1976 (Total Build: 580)....
For more information on Chumlilies visit: https://www.facebook.com/chumlilies/If you want to support me, check out my Patreon account (thank you so much!!) p...
SailboatData.com …is a database that contains information on over 9000 production and semi-production sailboats dating back to the late 1800's. COMPARE BOATS To compare up to three boats at one time, click the (+) Remove a compared boat by clicking (-)
30' Cape Dory 30 -Alberg design cutter rigged Atlantic Highlands Marina, New Jersey Asking $14,000
The GRINDE sailing boat is a popular model of sailboat that was designed and built in Denmark. It was first introduced in the 1970s and quickly gained popularity among sailing enthusiasts. The GRINDE is a 24-foot (7.3 meters) sailboat that is known for its sturdy construction and excellent sailing performance. It features a traditional design ...
For maximum comfort and safety, we advise keeping the number of individuals on 1978 Peter Bruun Grinde 27 at 5. 1978 Peter Bruun Grinde 27 is classified into antique classic sailing boats. Contact the offerer to clarify the price of $21,578 and buy Peter Bruun Grinde 27. the offerer can provide more information about the buying process!
Your search returned 10 matches of 104134 sailboats posted to date. Sort by: Length Year Price Added Dufour Fractional Ownership Sailboat Partnership 425 Grand Large
If you want to support me, check out my Patreon account (thank you so much!!) patreon.com/windhippieFor more regular photo updates and boating life, check ou...
Grinde preowned sailboats for sale by owner. Grinde used sailboats for sale by owner. Home. Register & Post. View All Sailboats. Search. Avoid Fraud. ... 27' Artekno H-Boat Berkeley, California Asking $24,000. 25' Cape Dory 25 D Sea Brook, Texas Asking $8,779. 17' Windrider 17 Cedar City, Utah Asking $8,900.
27' Grinde sailboat. Danish built fiberglass sloop (see You Tube- "wind hippie sailing"- this is sistership). Bukh DV-10 diesel (hours unknown) with parts engine. Two mainsails and a Genoa. Furlex roller furling; CQR and Danforth anchors; Chartplotter; Lavac toilet with holding tank (not yet connected); fresh bottom paint.
Sailboat data, rig dimensions and recommended sail areas for Grinde sailboat. Tech info about rigging, halyards, sheets, mainsail covers and more.
If you are a boat enthusiast looking to get more information on specs, built, make, etc. of different boats, then here is a complete review of GRINDE. Built by undefined and designed by Peter Bruun, the boat was first built in 1974. It has a hull type of Fin w/transom hung rudder and LOA is 8.2. Its sail area/displacement ratio 15.83.
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Grinde preowned sailboats for sale by owner. Grinde used sailboats for sale by owner. Home. Register & Post. View All Sailboats. Search. Avoid Fraud. ... Sailboat Added 27-Feb-2020 More Details: Newport Shipyard Frers Custom: Length: 43.5' Beam: 14.2' Draft: 8.5' Year: 1981: Hull: aluminum monohull: