etap 21i sailboatdata

Review of Etap 21i

Basic specs..

The hull 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 boat is equipped with one cabin, 4 berths, 20.0 liter fresh water capacity and toilet facility.

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 boat can enter even shallow marinas as the draft is just about 1.30 - 1.40 meter (4.27 - 4.57 ft) dependent on the load. See immersion rate below.

Etap 21i is typically equipped with an engine.

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 Etap 21i is 2.43, 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 6.0 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 Etap 21i is about 101 kg/cm, alternatively 569 lbs/inch. Meaning: if you load 101 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 569 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 Displacement Length Ratio?

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.

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 Etap 21i 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.

Have questions? Send us your request.

nauCAT is online nautical magazine. We do not sell products on our website (except advertisement space).

Contact info

• Zagorska 23, 10000 Zagreb, Croatia
• +385 91 / 3312 717
• nauCAT - Nautical magazine

With the smallest sailing boat of only 6,5 metres, Etap approaches the younger generation of buyers who primarily fascinated with sports sailing. Exceptionally long waterline, displacement of only 1,1 tones incuding the keel, double lifting rudders and large sail plan are practical solutions that satisfy requirements for racing. Etaps 21i´s additional advantage is that she can also serve as quite comfortable family cruiser, which can accommodate up to four (younger) crewmembers on her 6,5 metres. Understandable is that interior does not boast spaciousness, but functionality of layout and all necessary equipment enable each crew member to feel fine. Published: 2003 Photo: Etap

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ETAP 21i Specifications

Hull Type: Tandem keel Rigging Type: Fractional Sloop LOA: 21.52 ft / 6.56 m LWL: 20.01 ft / 6.10 m S.A. (reported): 257.26 ft² / 23.90 m² Beam: 8.17 ft / 2.49 m Displacement: 2,712.00 lb / 1,230 kg Ballast: 772.00 lb / 350 kg Max Draft: 2.30 ft / 0.70 m Construction: FG First Built: 1997 Last Built: 2009 # Built: 549 Builder: Etap Yachting (BEL) Designer: Mortain-Mavrikios

Water: 5 gals / 20 L Hull Speed: 5.99 kn

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• Everything Explained.Today
• A-Z Contents

ETAP 21i explained

The ETAP 21i is a Belgian trailerable sailboat that was designed by Mortain & Mavrikios as a cruiser and first built in 1997. [1] [2]

The ETAP 21i design was developed into the ETAP 22s after 2009, a design using the same hull, but it was not known if any had been produced by 2021. [1]

The ETAP 21i was built by ETAP Yachting in Belgium between 1997 and 2009, with 549 boats completed, but it is now out of production. [1] [3]

The design is a recreational keelboat , built predominantly of glassfibre , with wood trim. It has a fractional sloop rig; a plumb stem; a vertical transom ; twin transom-hung rudder s controlled by a tiller and two fixed, shallow draft, tandem keel s. [1]

The boat is normally fitted with a small outboard motor for docking and maneuvering. [1]

Operational history

The boat was at one time supported by a class club, the ETAP Owners Association . [5]

In a 2003 review in Yacht and Boat magazine, Barry Tranter wrote, "as the wind builds she heels initially, then the cast-iron bulb keel stiffens her up. And just when you think you may need to reach for the traveller to ease a bit of pressure you realise that the leeward rudder is biting deep into the water and keeps the boat tracking straight. This is the most memorable aspect of the Etap's behaviour; because the rudders are inclined to the vertical at rest (i.e. their lower tips are canted outwards) the leeward rudder is more or less vertical as the boat heels and it is also pushed deeper into the water as the leeward bilge submerges (and the windward rudder lifts clear.) As a result directional stability is exceptional, vital on short, light hulls, which can get out of sorts when tiller, mainsheet and the skipper's brain get out of phase with sharp gusts and lulls. Handling the Etap is simple ... This is a delightful and refreshing boat to sail..." [6]

• List of sailing boat types

External links

• Video tour of an ETAP 21i

Notes and References

• Web site: ETAP 21i sailboat . 3 April 2021. McArthur. Bruce . sailboatdata.com. 2020. https://archive.today/20210403171155/https://sailboatdata.com/sailboat/etap-21i. 3 April 2021. live.
• Web site: Mortain & Mavrikios . 3 April 2021. McArthur. Bruce . sailboatdata.com. 2020. https://archive.today/20210328171027/https://sailboatdata.com/designer/mortain-mavrikios. 28 March 2021 . live.
• Web site: Etap Yachting . 3 April 2021. McArthur. Bruce . sailboatdata.com. 2021. https://archive.today/20210323150726/https://sailboatdata.com/builder/etap-yachting. 23 March 2021. live.
• Web site: ETAP 22s: Technical specifications . 3 April 2021. ETAP Yachting. ETAP Yachting. etapyachting.com. https://archive.today/20210403175350/http://etapyachting.1a-8568.antagusserver.de/etapyachting/node/20. 3 April 2021. live.
• Web site: Etap Owners Association . 27 March 2021. McArthur. Bruce . sailboatdata.com. 2021. https://archive.today/20210323150702/https://sailboatdata.com/association/etap-owners-association. 23 March 2021. dead.
• Web site: Etap 21 Yacht Review . 3 April 2021. Tranter. Barry . Yacht and Boat. December 2003. https://archive.today/20210403180144/https://www.yachtandboat.com/etap-21-yacht-review/. 3 April 2021. live.

This article is licensed under the GNU Free Documentation License . It uses material from the Wikipedia article " ETAP 21i ".

Except where otherwise indicated, Everything.Explained.Today is © Copyright 2009-2024, A B Cryer, All Rights Reserved. Cookie policy .

ETAP - Unsinkable Sailing Pleasure

Safe, comfortable and fast: a thoroughbred etap.

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We are pleased to introduce you to the entire range of our high quality, unsinkable, safe and fast , World -Unique Sailing Yachts.

Etap 21i - Safe, comfortable and fast: a thoroughbred ETAP

The ETAP 21i has great appeal for competitive sailors, but is a superb family sailing yacht too. Its superbly designed internal layout offers sleeping accommodation for 4 people, a roomy main cabin, a functional corner galley and ample stowage space. The ETAP 21i is easy to tow and offers effortless launching straight from the trailer when fitted with the ETAP tandem keel.

Etap 24i - A perfect symphony of sailing performance, comfort and safety

Right from its launch, the ETAP 24i was a trendsetter, with its safe, deep cockpit, the flowing lines of its cabin sofas, the recessed foredeck hatch and much more give this yacht a balanced unity which is bound to beguile you.

Etap 30cq - Superb performance in grand comfort

The newest yacht will surprise you with a unique combination of outstanding sailing performance and extraordinary comfort. Below deck, a stylish and exclusive interior awaits you, light and airy thanks to the panoramic window and a uniquely generous space.

Etap 32s - An ideal luxury yacht

The ETAP 32s is the ideal choice for many discerning sailing enthusiasts. Its tall 190 cm headroom at the companionway and the panoramic window combine to give this yacht a spacious, airy interior. An ideal yacht for family cruising, it is also perfect for a crew of two.

Etap 37s - Exclusive comfort, excellent sailing performance

This luxury cruiser unites safety and comfort with excellent sailing characteristics. The ETAP 37s features a 9/10 rigging with double spreaders, and a partially battened mainsail with integrated mainsail cover and furling genoa. All sailing controls are led to the very spacious, ergonomic cockpit.

Etap 46DS - The latest generation

Our newest flagship is a highly elegant “coupé” for speedy, comfortable sailing, even with a small crew... The ETAP 46DS is an exceptional sailing yacht. The unique lay-out and panoramic saloon make this an unusually comfortable boat. Specific functions for blue water sailing and integrated navigation and multimedia equipment complete the picture.

Etap 100AC - The safest motor yacht in the world!

The ETAP 1100 AC shares the characteristics of its sailboat cousins: safe, comfortable and innovative. As are all ETAP’s, the 1100 AC has a double-skinned structure, thus making it unsinkable, is superbly finished and is extremely strong. Its modern hull design makes this motoryacht ideal not only for families and friends who want to enjoy safe watersporting out at sea, but also for cruising on large inland lakes, canals and rivers.

Dijkstraat 15 BE - 9160 Lokeren Belgium Tel.: +32 9/348 48 46 Fax: +32 9/348 95 16 www.etapyachting.com

2001 Etap 21i

The Etap 21i is a safe, fun to sail, trailable vessel ideal as a family day-sailer or weekender. Lake based and presented in tidy condition with a good inventory including trailer. Great choice as a first keel boat.

Specifications

Additional info, basic boat info, engines / speed.

• Make: Mariner
• Fuel: Petrol

Available to view by appointment. Please contact Maiden Marine on 015394 88050 to arrange.

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The Etap 22 is a 21.65ft fractional sloop designed by E. G. van de Stadt and built in fiberglass by Etap Yachting between 1974 and 1984.

1830 units have been built..

The Etap 22 is a light sailboat which is a reasonably good performer. It is very stable / stiff and has a low righting capability if capsized. It is best suited as a day-boat.

Etap 22 for sale elsewhere on the web:

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Etap 22I is a 22 ′ 2 ″ / 6.8 m monohull sailboat designed by Jacques De Ridder and built by Etap Yachting between 1983 and 1996.

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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