Daysailer/Beach Cruiser
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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 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 Windward 21 (Luger) is equipped with a swing keel. A swing keel is a pivoting lifting keel, allowing to sail both coastal and inland waters.
The boat can sail close to the beach as the draft is just 0.15 - 0.25 meter (0.49 - 0.79 ft) dependent of the load. See immersion rate below.
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 Windward 21 (Luger) is 2.63, 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 5.9 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 Windward 21 (Luger) is about 97 kg/cm, alternatively 543 lbs/inch. Meaning: if you load 97 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 543 lbs cargo on the boat it will sink 1 inch.
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?
When buying anti-fouling bottom paint, it's nice to know how much to buy. The surface of the wet bottom is about 16m 2 (172 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.
Usage | Length | Diameter | ||
Jib sheet | 6.4 m | (21.0 feet) | 10 mm | (3/8 inch) |
Genoa sheet | 6.4 m | (21.0 feet) | 10 mm | (3/8 inch) |
Mainsheet | 16.0 m | (52.5 feet) | 10 mm | (3/8 inch) |
Spinnaker sheet | 14.1 m | (46.2 feet) | 10 mm | (3/8 inch) |
This section is reserved boat owner's modifications, improvements, etc. Here you might find (or contribute with) inspiration for your boat.
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Luger Windward 21 is a 20 ′ 11 ″ / 6.4 m monohull sailboat designed by Ren and Orem Luger and built by Luger Industries between 1964 and 1987.
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
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
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
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
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 )
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 sold in ‘‘kit’’ form.
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The windward 21 luger is a 21.0ft fractional sloop designed by ren and orem luger and built in fiberglass by luger industries (usa) between 1964 and 1987..
The Windward 21 luger is a light sailboat which is under powered. It is stable / stiff and has a low righting capability if capsized. It is best suited as a day-boat.
Model | Windward 21 luger | ||
Length | 21 ft | ||
Beam | 8 ft | ||
Draft | 0.50 ft | ||
Country | United states (North America) | ||
Estimated price | $ 0 | ?? |
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Sail area / displ. | 0 | ?? | |
Ballast / displ. | 0 % | ||
Displ. / length | 108.37 | ||
Comfort ratio | 8.74 | ||
Capsize | 2.63 |
Hull type | Monohull swing keel | ||
Construction | Fiberglass | ||
Waterline length | 19.50 ft | ||
Maximum draft | 4 ft | ||
Displacement | 1800 lbs | ||
Ballast | 0 lbs | ||
Hull speed | 5.92 knots |
We help you build your own hydraulic steering system - Lecomble & Schmitt
Rigging | Fractional Sloop | ||
Sail area (100%) | 0 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 |
Water capacity | 0 gals | ||
Headroom | 0 ft | ||
Nb of cabins | 0 | ||
Nb of berths | 0 | ||
Nb heads | 0 |
Builder | Luger Industries (USA) | ||
Designer | Ren and Orem Luger | ||
First built | 1964 | ||
Last built | 1987 | ||
Number built | 0 | ?? |
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Hi, I am looking at a 1985 Luger 21. Looks like there are several models; Southwind, leeward, windward, etc. Does anyone have a resource so I can see the differences between them. Is this a boat one (or 2) can spend the night on? Thanks in advance, Tweeet
The LEEWARD is a 16' model similar to an O'DAY Day Sailer I (well, sort of?). I think the Southwind and Windward are basically the same boat, the difference is mainly that the SOUTHWIND has a retractable keel that is totally below the hull, and the WINDWARD is a CENTERBOARD design with the CB housed inside the hull. (Windward is an older version of hte Southwind) I have an old (1981 and 1982) catalog, but there used to be a LUGER BOATS website mantained by a few owners. "The Luger Mooring".... unfortunately it seems to have disappeared! I'd suggest "googling" LUGER, see what you find...... I think I found more info on a couple of general sailing sites, like one on trailersailing. Try the Small Craft Advisor Web Site (and magazine). I can try to answer questions based on my brochures..... PS: the "SOUTHWIND 21" is really only 20' long........ Luger got 21' by measuring around the curve of the gunwale! Pretty sneaky!! I'd say 2 people could cruise in relative comfort on a boat this size, it will be a couple of steps above sleeping in a tent, and many couples have happily cruised in smaller boats. However, a lot depends on how the original owner built/finished the boat, these LUGER boats were all "kit boats" and were completed from bare hulls/decks by their owners.
Here is a couple of links. I belong to the yahoo group. Its still alive but a little slow. http://scripts.cgispy.com/board.cgi?user=lugerads http://groups.yahoo.com/group/lugerboats/
Luger Industries had its beginnings with Orm Luger and his brother in Burnsville, MN. Orm, an older gentleman now, is still alive as far as I know and lives in Minnetonka, MN. They later (but long ago)sold their business to a fellow in Missouri. I don't think they have been in business for many years. They provided kit boats of both power and sail and some of the hull molds were used for both. The sailboat designs were as follows: Zephyr 11 "multi-purpose mini-sailor" Model 1580 was a day sailor Surfrider 12 Model 1200 was a surf board with a wishbone held mainsail (like a Windsurfer) Sebreeze 16 Model 1670 had a swing keel and a small cabin Leeward 16 Model 1690 was a hard-chined daysailor with a small open cuddy (like the O'Day DS) Southwind 21 Model 2112 was the "basic" boat where you designed your own interior Southwind 21 Model 2111 was an "Interior-included" model Tradewinds 26 Model 2601 was a cabin boat where you designed and built your own interior Tradewinds 26 Model 2602 was the "interior-included" model Fairwinds 27 Model 2701 was the basic model with no interior Fairwinds 27 Model 2702 was the 'Interior-included" model Voyager 30 Model 3001 was a sloop-rigged basic model with no interior Voyager 30 Model 3002 was a sloop rigged boat with the interior included Voyager 30 Model 3003 was a ketch rigged basic boat with no interior Voyager 30 Model 3004 was a ketch rigged interior included vessel. That is all the sailboat designes that Luger provided. The rest are powerboats.
COMMENTS
Designed to determine if a boat has blue water capability. The CSF compares beam with displacement since excess beam contributes to capsize and heavy displacement reduces capsize vulnerability. The boat is better suited for ocean passages (vs coastal cruising) if the result of the calculation is 2.0 or less. The lower the better.
Windward 21 (Macgregor) is a 20 ′ 11 ″ / 6.4 m monohull sailboat designed by Roger MacGregor and built by Windward Yachts between 1966 and 1969.
Windward 21 by Chesapeake Marine Design (LOA: 6.4 m). Daysailer/Cuddy Cruiser. Specs, plans, building logs, photo and video gallery.
The Windward 21 (Luger) is a small sailboat designed by the maritime architect Ren and Orem Luger in the mid sixties. The Windward 21 (Luger) is built by the American yard Luger Industries, Inc..
Luger Windward 21 is a 20 ′ 11 ″ / 6.4 m monohull sailboat designed by Ren and Orem Luger and built by Luger Industries between 1964 and 1987.
The Windward 21 macgregor is a 21.0ft cutter designed by Roger MacGregor and built in fiberglass by Windward Yachts (USA) between 1966 and 1969. The Windward 21 macgregor is an ultralight sailboat which is a very high performer.
The Windward 21 luger is a 21.0ft fractional sloop designed by Ren and Orem Luger and built in fiberglass by Luger Industries (USA) between 1964 and 1987. The Windward 21 luger is a light sailboat which is under powered.
WINDWARD 21 is based on the Seaside Bateaux once common working craft behind the barrier islands of Maryland′s Atlantic coast. These boats were noted for their load capacity and speed under sail for a client who I designed her wanted a daysailer with a large and simple overnight cockpit .... accommodations under a boom ....
Blue Water Surf Value Rank (BWSVR) 7582. Capsize Comfort Value Rank (CCVR)
I am looking at a 1985 Luger 21. Looks like there are several models; Southwind, leeward, windward, etc. Does anyone have a resource so I can see the differences between them.