inferno 33 sailboat

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• Sailboat Guide

Inferno 33 is a 32 ′ 11 ″ / 10.1 m monohull sailboat designed by Håkan Södergren and built by NaBoats/Tabasco Marine (FIN) between 1984 and 1990.

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)

Also known as FINNGULF 33.

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Review of Inferno 33

Basic specs..

The hull is made of fibreglass. Generally, a hull made of fibreglass requires only a minimum of maintenance during the sailing season.

The boat equipped with a fractional rig. A fractional rig has smaller headsails which make tacking easier, which is an advantage for cruisers and racers, of course. The downside is that having the wind from behind often requires a genaker or a spinnaker for optimal speed.

The Inferno 33 is equipped with a fin keel. A boat with a fin keel is more manoeuvrable but has less directional stability than a similar boat with a full keel.

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 1.75 - 1.85 meter (5.74 - 6.04 ft) dependent on the load. See immersion rate below.

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 Inferno 33 is 1.88, 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 7.0 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 Inferno 33 is about 169 kg/cm, alternatively 947 lbs/inch. Meaning: if you load 169 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 947 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 30m 2 (322 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.

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 Inferno 33 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.

The Inferno 33 is a 32.97ft fractional sloop designed by Håkan Södergren and built in fiberglass between 1984 and 1990.

25 units have been built..

The Inferno 33 is a moderate weight sailboat which is a high performer. It is very stable / stiff and has a good righting capability if capsized. It is best suited as a fast cruiser.

Inferno 33 for sale elsewhere on the web:

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Fin w/spade rudder

Specifications INFERNO 33

Home - Sailboat Listings 1984 - 32.97 ft / 10.05 m - Håkan Södergren - NaBoats/Tabasco Marine (FIN)

INFERNO 33 Sailboat Data

Hull Type: Fin w/spade rudder Rigging Type: Fractional Sloop LOA: 32.97 ft / 10.05 m LWL: 26.90 ft / 8.20 m S.A. (reported): 592.00 ft² / 55.00 m² Beam: 10.10 ft / 3.08 m Displacement: 9,920.00 lb / 4,500 kg Ballast: 4,409.00 lb / 2,000 kg Max Draft: 5.74 ft / 1.75 m Construction: FG First Built: 1984 Last Built: 1990 # Built: 25 Builder: NaBoats/Tabasco Marine (FIN) Designer: Häkan Södergren

Information from  sailboatdata.com .

Type Engine: Diesel Hull Speed: 6.95 kn

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Let's Get to Know Each Other

Let's connect, why it's important to partner with a designer on your inferno 33 sail.

The design is the most critical part of your new sail. Ensuring the sail fits and performs its best is a must for our crew. The Precision Sails Design team are experts at their craft. Unlike other sail lofts all of our sailors work one-on-one with a designer to perfect their Inferno 33 sail.

No Two Inferno 33 Sails Are Alike

There are many factors that affect the performance and design of your sails. Location, sailing experience, and weather conditions all come into play when picking the perfect sail. Two mainsails made for two Inferno 33’s in California and Florida will have different designs, sailcloth, and options based on what is best for the sailor.

Taking measurements is easy. All sailors work alongside our measurement team to measure and confirm their rig specs. This helps ensure your design is flawless and allows us to extend our Perfect Fit Guarantee to all of our sailors.

Discover the best cloth for your sailing needs, our sail details, or more about how Precision Sails is leading the sail-making industry with innovative new practices.

Proudly offering the largest selection of sailcloth in the industry, our team is always available to help you find your perfect sail. Whether you're a weekend sailor, coastal cruiser, or club racer our team is ready to walk you through the process.

Types of Sails

Precision Sail Loft specializes in producing headsails, mainsails, spinnakers, gennakers, and code zeros. So no matter the type of sail you’re looking for, we can help. Our sails are trusted by cruisers and racers alike from around the globe. Review the sail options and craftsmanship available to customize your dream sail.

Build & Process

Every sail we craft is produced to the highest standards with the best hardware, craftsmanship, and skill-set in the industry. Pair that with Precision Sails' approach to communication and your sailboat will be ready to set sail before you know it.

Unparalleled Commitment To Helping Sailors

As experts in design, communication, and production our team is ready to take on the task of making sails for your boat. Give us a call to get started.

“ I just received my asymmetrical spinnaker, with sock and turtle bag, along with a new 135 Genoa. The entire process was simple and both sales and the design team were in regular contact if there were any questions. The customer portal was easy to use and lets you keep track of where in the process your sails are. Great sails, great service -Graham Edwards (Facebook)

“ The whole team at Precision Sails was fantastic from start to finish. We’ve had a laminate main and genoa made so far and have a spinnaker on the way. They listened carefully to our needs and recommended a great sail cloth. We couldn’t have gotten more bang for our buck! -Noah Regelous (Google)

“ We received our spinnaker and launched it yesterday and I just wanted to let you know how pleased we are with it. The service we received from your company was exceptional and the quality of your product is second to none. We will certainly be return customers in the next few months to replace our main and jib sails and will recommend your company to all our sailing buddies. Once again-thank you.” -Daniel Jackson (Google)

“ we had good communication during the planning stages and the knowledgeable people at precision sails really got me fixed up good! The sails look and work fabulous! my boat sails better than it ever had! couldn’t be more pleased with the product AND the service!” -Fred Jelich (Facebook)

“ Our new furling jib for a Corsair 27 Had to be specially designed due to the height of the furler, but this was accomplished quickly and in short order we had our sail which fits beautifully and has a great shape. It’s everything we could have wanted, high tech design, thoughtfully executed and affordable.” -Nancy Y. (Yelp)

Request a Inferno 33 Quote

Looking to buy a new headsail or mainsail for your Inferno 33? Request a free quote from Precision Sails for a new custom sail. Our team will work with you to design the perfect sail for you.

Thanks for telling us a bit about yourself and your boat. Our team will send you a preliminary quote based on information we have gathered from sailors similar to you.

We will give you a call in order to narrow down the options on your quote and improve the accuracy. If you want us to call you at a specific time, feel free to schedule a time on our calendar!

Thanks for telling us a bit about yourself and your boat. Our team will reach out to offer some suggestions and get started on finding you the perfect sail!

20.04.2020 23:24, Etelä-Karjala

52000 €

• Vuosimalli: 1991
• Tyyppi: Purjevene

Inferno 33, vm 1991,. Pituus, leveys, syväys: 10.05, 3.08, 1.75. Korkeus: 16.6. Paino 4500kg. Rek.no K-46731. Purjeen no FIN-8042. Runkokatsatettu 2018. Vuokraveneen katsastustodistus, Veneellä on myös kilpailtu. Viiimeiset 20v makessa vedessä. Varusteet: Autopilotti: Autohelm ST 2000. GPS: Geonav. Mittaristo Autohelm. Loki, kaiku, tuulimittari, kompassi.Kompassi (neste): Suunto. VHF: Raymarine…, aluksella viestintäviraston radiolupa (AL1136422), aluksen tunnus OJ8374. Ilmapuntari. Hyväkuntoiset patjat!. Tiikit sitloorassa. TV ja radio. Teräspukki talvisäilytykseen. Spinnupuomi. Puomipussi. Ankaroliina. Ankkuri. Hätäraketit. Soihdut. Pelastusrengas. 2 sammutinta. Pilssipumppu. Palovaroitin. Ulkopöytä. Keulatikkaat. Keitin: Keitin/uuni nestekaasulla, 2 pulloa. Kylmäboksi ja kompressori. WC ja Septitankki, imutyhjennys 40l. Juomavesitankki 90l, painevesi. Lämminvesiboileri. Keittiössä kylmä/lämmin vesi, suihkuletku yltää myös kannelle. Polttoaine tankki (diesel) 40l. Lämmitin (diesel) Webasto 2400. Maasähkö: Sisäpistorasioilla. Aurinkopanelit 2kpl. 2 käyttöakkua, yksi starttiaukku. Uusittu 2018. Invertteri :12v -> 220V Kone Volvo Penta 2002 diesel, 18hv. (Myös samanlainen kone myytävänä erikseen tai neuvotellaan kauppaan mukaan jos haluaa varakoneeksi), Volvon 3-lapainen taittolapapotkuri. S-vetolaite 120S. Sprayhood. Selden riki, 2 saalinkia. Vinssit 6kpl (4 kpl itsejalustava). Köysilukot 10 kpl. Barduunat, vaijeri Purjeet 8kpl: Isopurje Doule radial-leikattu Pentex laminatti, 3 läpilatoitettu Isopurje WB-sails, läpilatta (alkuperäinen) Rullapurje 140%, 32.1m2, 6,5oz trifab mylar, Rulla Harken MKII Genoa 1 Neb-sails, takaa kevlar vahvistettu ja edestä polyester vahvistettu Mylar Genoa 3 Doyle 107% XC Kevlar 3 laattaa (ollut vähällä käytöllä kilpailuissa) Spinaakkeri coastal true radial 1.0oz nort toray (86m2) Spinaakkeri Quantum, Superkote 75 Täysradiaalileikkaus (”sivutuulen” spinaakkeri, ollut vähällä käytöllä kilpailuissa) Myrskyfokka

Perustiedot

Ilmoitukset

Rais Sport 2000

14000 €

Meriläinen jim.

21000 €

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General Data

See also: boats for sale.

• Marlow Hunter Hunter 33
• Zuanelli Z34
• Jeanneau 33i

Overall length:

Waterline length:, maximum beam:, displacement:, straightening:, sail details mq, equipments:.

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Inferno 33 - Halyards

MAURIPRO Rigging Shop

Genoa halyard (cruising) for inferno 33, mpr-4850-hg-cr-10-93.

Genoa Halyard (Performance Cruise) for Inferno 33

Mpr-4850-hg-pc-10-93.

Genoa Halyard (Club Racing) for Inferno 33

Mpr-4850-hg-cl-10-93.

Genoa Halyard (GP Racing) for Inferno 33

Mpr-4850-hg-gp-8-93.

Mainsail Halyard (Cruising) for Inferno 33

Mpr-4850-hm-cr-10-105.

Mainsail Halyard (Performance Cruise) for Inferno 33

Mpr-4850-hm-pc-10-105.

Mainsail Halyard (Club Racing) for Inferno 33

Mpr-4850-hm-cl-10-105.

Mainsail Halyard (GP Racing) for Inferno 33

Mpr-4850-hm-gp-8-105.

Spinnaker Halyard (Cruising) for Inferno 33

Mpr-4850-hs-cr-10-93.

Spinnaker Halyard (Performance Cruise) for Inferno 33

Mpr-4850-hs-pc-10-93.

Spinnaker Halyard (Club Racing) for Inferno 33

Mpr-4850-hs-cl-10-93.

Spinnaker Halyard (GP Racing) for Inferno 33

Mpr-4850-hs-gp-8-93.

Pre-spec and custom mainsail, genoa and spinnaker halyards for your Inferno 33 Polyester and Dyneema lines for cruising and racing halyards. Full range of options.

MAURIPRO Rigging shop brings years of expertise to the sailing community. Our riggers are constantly working with sailboat owners to provide high-quality halyards for their cruising or racing sailboats. From traditional polyester double braid to the latest on high tech lines made out of Dyneema or Stirotek, we offer a wide range of materials and diameters to fit any need of sailboat halyards.

We at MAURIPRO Sailing are looking forward to helping you the best way we can, but most importantly, we are looking forward to seeing you on the water. Let's Go Sailing!

Copyright © 2024 MAURIPRO Sailing LLC.

Finngulf 33 HS

Designed by Håkan Södergren, also built under the name Inferno 33, this is a zippy cruiser racer that is still quite popular in the Baltic. 25 yachts were built between 1983 and 1990.

Tech Specs (all in metric units m/kg/sq. m):

LOA: 10,08m

Beam: 3,08m

Draft: 1,75m

Displacement: 4 500kg

Keel Weight: 2 100kg

Sail Area: 56 m 2

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