Review of Bacchant IV
Basic specs..
The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.
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 Bacchant IV has been built with different keel alternatives.
One option is a long keel. A full keel provide a better directional stability than a similar boat with a fin keel; on the other hand, better directional stability means also that the boat is more difficult to handle in a harbour with less space.
The keel is made of lead. Compared with iron, lead has the advantage of being 44% heavier, which allows a smaller keel and hence less water resistance and higher speed.
The boat can enter most marinas as the draft is just about 1.60 - 1.70 meter (5.25 - 5.55 ft) dependent on the load. See immersion rate below.
Another option is a long keel.
The keel is also made of lead.
Bacchant IV 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 engine
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.
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 Bacchant IV is 1.48, indicating that this boat could - if evaluated by this formula alone - 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 6.8 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 Bacchant IV is about 143 kg/cm, alternatively 804 lbs/inch. Meaning: if you load 143 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 804 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 17m 2 (182 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 | 27.6 m | (90.4 feet) | 12 mm | (1/2 inch) |
| Jib/genoa halyard | 27.6 m | (90.4 feet) | 12 mm | (1/2 inch) |
| Spinnaker halyard | 27.6 m | (90.4 feet) | 12 mm | (1/2 inch) |
| Jib sheet | 10.9 m | (35.9 feet) | 14 mm | (0.55 inch) |
| Genoa sheet | 10.9 m | (35.9 feet) | 14 mm | (0.55 inch) |
| Mainsheet | 27.3 m | (89.6 feet) | 14 mm | (0.55 inch) |
| Spinnaker sheet | 24.0 m | (78.9 feet) | 14 mm | (0.55 inch) |
| Cunningham | 4.2 m | (13.9 feet) | 12 mm | (1/2 inch) |
| Kickingstrap | 8.5 m | (27.9 feet) | 12 mm | (1/2 inch) |
| Clew-outhaul | 8.5 m | (27.9 feet) | 12 mm | (1/2 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.
We are always looking for new photos. If you can contribute with photos for Bacchant IV it would be a great help.
If you have any comments to the review, improvement suggestions, or the like, feel free to contact us . Criticism helps us to improve.
Knud Reimers “Bacchant”
Reimers “Bacchant” Specifications:
LOA: 63′ 11″ / 19.23m * LOD: 63′ 11″ / 19.23m * LWL: 51′ 0″ / 15.54m * Beam: 9′ 10″ / 2.98m * Draft: 8′ 4″ / 2.56m * Ballast: * Displacement: (original 11 Tons) current 28,500 lbs./ 12,927.38 kgs. * Sail Area: (original 807 sq ft) current 1,189 sq ft * Yard Number: * Hull material: Wood construction * Rig: Sloop * Designer: Knud Reimers * Built by: ( Plyms) * Year Designed/Built: 1936 * Restored By: * Current Name: Bacchant * Original Owner: Eric Lundgren * Current Owner: * Sail Number: 75 47
Known Racing History: ?
1985 Lake Michigan Championship: First place Combination of Mac/Queen’s Cup and Course Race after QCNumerous section and fleet winds in local racing.
CHICAGO TO MACKINAC RACE 1989 IMS Sec 1 3rd 1990 IMS Sec 2 2nd 1994 PHRF Sec 2 1st 1998 PHRF Sec 2 1st, 1st overall 1999 PHRF Sec 2 3rd 2000 PHRF Sec 2 3rd 2001 PHRF Sec 3 1st 1st overall 2002 PHRF Sec 3 1st 2nd overall Mac Cup 2003 Americap Sec 3 1st 2nd overall Mac Trophy 2004 25th Mac Race becomes “Old Goat” boat SSYC QUEEN’S CUP 1984 PHRF Div 1 1st 1st overall 1985 PHRF Div 1 1st 1st overall 1986 PHRF Div 1 1st 1988 IMS Div 1 1st 1st overall Silve Trophy 1990 PHRF Div 1 1st 1st overall 1992 IMS Div 1 2nd 1993 PHRF Div 1 3rd 1994 PHRF Div 1 1st 1995 PHRF Div 1 5th 1996 PHRF Div 1 2nd 1997 PHRF Div 1 3rd 1999 PHRF Div 1 1st 1st overall 2000 PHRF Div 1 1st 2001 PHRF Div 2 1st 2002 PHRF Div 2 1st 2004 PHRF Div 2 1st 2006 PHRF Div 2 1st 3rd overall.
Known Restoration History: –
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- Sailboat Guide
Bacchant IV
Bacchant IV is a 35 ′ 8 ″ / 10.9 m monohull sailboat designed by Knud Reimers and built by Västerås Hardplast between 1964 and 1986.
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)
Dimensions from builders brochure (1967).
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Bacchant iv
The bacchant iv is a 35.7ft masthead sloop designed by knud h reimers and built in fiberglass between 1964 and 1986., 80 units have been built..
The Bacchant iv is a heavy sailboat which is slightly under powered. It is very stable / stiff and has an excellent righting capability if capsized. It is best suited as a bluewater cruising boat.
Bacchant iv for sale elsewhere on the web:
Main features
| Model | Bacchant iv | ||
| Length | 35.70 ft | ||
| Beam | 9 ft | ||
| Draft | 4.89 ft | ||
| Country | ?? | ||
| Estimated price | $ 0 | ?? |
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| Sail area / displ. | 15.21 | ||
| Ballast / displ. | 41.97 % | ||
| Displ. / length | 310.71 | ||
| Comfort ratio | 35.28 | ||
| Capsize | 1.56 |
| Hull type | Monohull long keel | ||
| Construction | Fiberglass | ||
| Waterline length | 26.08 ft | ||
| Maximum draft | 4.89 ft | ||
| Displacement | 12346 lbs | ||
| Ballast | 5181 lbs | ||
| Hull speed | 6.84 knots |
We help you build your own hydraulic steering system - Lecomble & Schmitt
| Rigging | Masthead Sloop | ||
| Sail area (100%) | 506 sq.ft | ||
| Air draft | 0 ft | ?? | |
| Sail area fore | 0 sq.ft | ?? | |
| Sail area main | 0 sq.ft | ?? | |
| I | 0 ft | ?? | |
| J | 0 ft | ?? | |
| P | 0 ft | ?? | |
| E | 0 ft | ?? |
| Nb engines | 1 | ||
| Total power | 0 HP | ||
| Fuel capacity | 0 gals |
Accommodations
| Water capacity | 0 gals | ||
| Headroom | 0 ft | ||
| Nb of cabins | 0 | ||
| Nb of berths | 0 | ||
| Nb heads | 0 |
Builder data
| Builder | ?? | ||
| Designer | Knud H Reimers | ||
| First built | 1964 | ||
| Last built | 1986 | ||
| Number built | 80 |
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IMAGES
COMMENTS
Boat: Bacchant IV 36 "TRIO" Posts: 9 Images: 2. Bacchant IV 36ft Sailboat. I recently purchased a 1968 Bacchant IV and was wondering if there were any others in the USA. 27-03-2008, 10:44 #2: GordMay. Senior Cruiser . Join Date: Mar 2003. Location: Thunder Bay, Ontario - 48-29N x 89-20W.
Consider, though, that the typical summertime coastal cruiser will rarely encounter the wind and seas that an ocean going yacht will meet. Numbers below 20 indicate a lightweight racing boat, small dinghy and such; 20 to 30 indicates a coastal cruiser; 30 to 40 indicates a moderate bluewater cruising boat; 40 to 50 indicates a heavy bluewater boat;
The Bacchant IV has been built with different keel alternatives. Full keel. One option is a long keel. A full keel provide a better directional stability than a similar boat with a fin keel; on the other hand, better directional stability means also that the boat is more difficult to handle in a harbour with less space.
becomes "Old Goat" boat SSYC QUEEN'S CUP 1984 PHRF Div 1 1st 1st overall 1985 PHRF Div 1 1st 1st overall 1986 PHRF Div 1 1st 1988 IMS Div 1 1st 1st overall Silve Trophy ... Designed by Knud Reimers and built by Plyms, Bacchant was a continuation of Reimer's innovative light displacement designs in the 22 and 30 square meter classes ...
Bacchant IV is a 35′ 8″ / 10.9 m monohull sailboat designed by Knud Reimers and built by Västerås Hardplast between 1964 and 1986. ... 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 ...
The Bacchant iv is a 35.7ft masthead sloop designed by Knud H Reimers and built in fiberglass between 1964 and 1986. 80 units have been built. The Bacchant iv is a heavy sailboat which is slightly under powered. It is very stable / stiff and has an excellent righting capability if capsized. It is best suited as a bluewater cruising boat.
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Bacchant IV is a beautiful and well-sailing family cruiser in the 30' class, it is a classic on the water - and it is a solid and safe boat to be on board - even when the wind picks up. The boat is traditionally furnished with a navigation table at the descent on the BB side and a pantry to starboard.
Boat: Bacchant IV 36 "TRIO" Posts: 9 Images: 2. Bacchant IV Picture. Should anyone be interested ,this is a photo of my Bacchant IV. Attached Thumbnails 28-03-2008, 11:11 #2: S/V Elusive. Senior Cruiser. Join Date: Apr 2006. Location: California. Boat: 1980 Endeavour 43 (Ketch) Posts: 2,457
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The Gran Turismo 36 brilliantly designed by BENETEAU, has living spaces that can easily accommodate up to eight people, combines comfy cruising with outstanding handling and sensations, and sets the mode in an elegant and sporty style.Zipwake dynamic trim control system turns the challenging navigation into second nature. She is really easy and great fun to drive with inboard twin 300hp Volvo ...
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