hawk 20 sailboat data

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• Sailboat Guide

Hawk 20 is a 20 ′ 0 ″ / 6.1 m monohull sailboat designed by Chris Hawkins and built by Reid Marine starting in 1992.

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)

JOHN REID & SONS LTD (MARINE DIVISION) REID STREET, CHRISTCHURCH DORSET BH23 2BT TEL - 44 (0)1202 483333 FAX - 44 (0)1202 470103 & 478863 www.hawk20.co.uk

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Review of Hawk 20

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.

DaggerBoard

The Hawk 20 is equipped with a daggerboard keel. A daggerboard is a lifting keel that can be lowered and raised, allowing the boat to enter shallow waters as well.

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 sail close to the beach as the draft is just 0.23 - 0.33 meter (0.75 - 1.05 ft) dependent of 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.

The immersion rate is defined as the weight required to sink the boat a certain level. The immersion rate for Hawk 20 is about 92 kg/cm, alternatively 517 lbs/inch. Meaning: if you load 92 kg cargo on the boat then it will sink 1 cm. Alternatively, if you load 517 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 L/B (Length Beam Ratio)?

The l/b ratio for Hawk 20 is 2.70.

Sorry, we do not have sufficient statistical information available for this boat to provide a significant reliable analysis.

Maintenance

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 Hawk 20 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.

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Hawk 20 Yacht / Trailer Sailer

The Hawk 20 yacht is a 20ft self-righting, self-draining, shallow-draft, centre-board, sea-going day boat built in GRP. The boat is ideal for the day boat racing and cruising enthusiast, the family sailer who wants comfort and security for the family without losing the exhilaration of fast windward sailing, club day boat fleets for closely matched one-design racing and sailing schools. it is also highly suitable for holiday chartering organisations wishing to offer exciting sailing to experienced sailers and total security and ease of handling for the not so experienced or beginners.

The motor in the Hawk 20 is mounted in an inboard well directly in front of the rudder and, being well forward of the transom, there is little chance of cavitation. The boat is available in two versions, a day boat and cabin version.

The Hawk 20 yacht comes complete with a tilt-back road trailer with pivot and a multi-roller system with nylon bearings to take the drama and back- ache out of launching and recovery which can be done in minutes wearing ordinary sailing shoes instead of waders or boots, single-handed if necessary, with the trailer brakes and wheel bearings clear of the water.

• Specification
• Related Links

Length : 20ft Beam : 7ft 5 Weight : 1800lb Sail Area : 140ft sq Berths : 2

Hawk 20 builders

• Search forums
• Yachting Monthly's Scuttlebutt

Hawk 20-any experiences?

• Thread starter (37645)
• Start date 9 Nov 2009

Firstly, sorry if I keep posting questions, but this seems like a lovely, fast boat and I was wondering if anyone has had a sail on one of these. What are they like? Seawothiness? I am only looking really at the two-berth version with a cabin. Regards  

• 10 Nov 2009

Well-known member

There's one in our club. I've never sailed on it but I've sailed against it and can confirm that it's fast! Looks well designed and strongly built too.  

No-one else seems to be offering opinions. I have not sailed one either. There are quite a few on Windermere and they appear to sail well and handle gusty,windy conditions well. I've fancied one as a day boat, and the open version would suit that purpose well. The Cabin (cuddy?) version would offer more protection but for anything more than a brief overnight I wouild imagine there are more suitable 20 foot boats.  

Hawk 20 We have a active Hawk 20 fleet at Christchurch SC, and they offer competitive one design racing. It's some years since I crewed on one but found them remarkably solid and easy to sail. I am a bit less convinced about the merits of the cabin version, it must be very cramped below, and for the money you could buy a proper cruiser second hand. If you're looking for the option to stay overnight on it very occasionally maybe, but I think the pure open version does what it is designed for very well and isn't trying to be something it isn't.  

Like a lot of others never sailed on one but sailing out of Christchurch I see plenty. Weather never seems to stop them and they look great fun.  

• 11 Nov 2009

Skylark said: Firstly, sorry if I keep posting questions, but this seems like a lovely, fast boat and I was wondering if anyone has had a sail on one of these. What are they like? Seawothiness? I am only looking really at the two-berth version with a cabin. Regards, Mike Click to expand...

• 12 Nov 2009

Hawk 20 Loads of info here http://www.hawk20.co.uk/design-features.htm  

• 16 Nov 2009

I have sailed a cabin version of the Hawk 20 for the past 2 years. I try to sleep aboard one or two nights a week from March to November, weather permitting. I think I have done about 30 nights this year. My background is dinghy sailing and camping - compared to that the cabin is very comfortable. If you are used to more spacious accommodation, you might find it a bit cramped. I generally go alone but if I have a crew, I put up the tent over the cockpit and that gives loads of extra space. I sail in the Solent and never use marinas. When I am cruising, I either dry out or anchor off and use the inflatable canoe. I keep the boat on a trailer at Calshot and launch it each time. In sailing terms, the Hawk is hard to beat - fast, self righting, self-draining, floats in a foot of water, tacks like a dinghy. I really rate it but, to be honest, when I was looking to buy, I never found (and therefore never tried) any direct competitor of the Hawk.  

• 17 Nov 2009

dylanwinter

Active member.

hawk 20 - I have sailed one I have been out in one several times once in a force six in Cornwall they feel a lot bigger than 20 foot very stable, very fast easy to sail singlehanded massive cockpit - can take six with ease plenty of dry stowage space they are expensive but very, very good and I understand offer some good class racing Dylan http://www.youtube.com/user/dylanwinter1  

• 29 Nov 2009

66595mirror

• 21 Sep 2010

Hawk 20 experience How did you find it, 66595mirror? Did it live up to expectations?  

• 18 May 2022

LeonieConway

Looking for maintenance parts for hawk 20? Anyone know anywhere that sells parts? In particular look for a gudgeon. The attachment from the rudder to the pin on the hull. Any advice would be appreciated  

LeonieConway said: Looking for maintenance parts for hawk 20? Anyone know anywhere that sells parts? In particular look for a gudgeon. The attachment from the rudder to the pin on the hull. Any advice would be appreciated Click to expand...

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• Boat REF#  ·  267654
• Length  ·  6.10m
• Year  ·  1992
• Construction  ·  GRP
• Underwater profile  ·  Lifting Keel
• Engine  ·  1 x gasoline 4hp, Yamaha ()
• Lying  ·  Christchurch Dorset

Boatshed Poole

This boat is off the market but here are some boats that are still for sale.

• Specification
• Additional Information

Extra Details

The engine is currently in dry storage

Spare Headsail Spare Mainsail

Construction

Nav Equipment

Brand New Garmin GPS (Unused)

Broker's Comments

The superbly constructed and designed Hawk is a "bomb proof" family day-boat.-They are reputed to be virtually uncapsizable, unsinkable and self-righting! The Hawk 20 is also fast on all points and great fun to sail. This one also comes with the purpose made RM Road Trailer for easy launch and recovery.

These boat details are subject to contract. Note: Offers on the asking price may be considered.

Owners FAQ's

How long have you owned the boat for, why are you selling her.

Age Retiring from boating

Where have you sailed her?

Christchrch Harbour

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Hawk 20 for sale in Woodbridge, Suffolk United Kingdom

Woodbridge, Suffolk United Kingdom

Make & Model

MEASUREMENTS

Description.

The Hawk 20 is a well proven, quality dayboat, with excellent sailing performance and a roomy cockpit. They are ideal for both safe family sailing and racing. This cabin version also offers daytime/overnight accommodation, has been little used and is presented in good order. A good opportunity to acquire a sought after, seagoing day/weekend boat at a substantial saving of the cost of a new boat.

Accommodations

The accommodation offers two berths in one cabin. Single burner gas stove to port. Space for Porta Potti chemical toilet to starboard. Stowage forward. Steps up to large cockpit with seating and stowage under.

Mechanical Systems

Located in a transom well. Mercury 5hp four stroke outboard engine. Hand start. Cruising speed 4 knots. Maximum speed 5 knots. Full service history. The engine well is designed in order that the engine can be raised when sailing and a hull blanking piece can be inserted for optimum sailing performance.

Sails & Spars

Fractional rigged sloop. Selden silver anodised alluminium mast & boom. Tapered mast with single spreaders. Spinnaker pole. Stainless steel standing rigging. Terylene running rigging.  Slab reefing to mainsail. Harken headsail furling system. Jib sheet tracks. Spinlock clutches x 2. Rod kicker.

Mainsail - very good

Genoa - very good

Spinnaker - very good

Deck Equipment

CQR anchor with chain & warp

Various fenders & warps

Stainless steel boarding ladder

Lewmar 6 winches x 2

Cockpit cushions

Navigation Equipment

Plastimo Mini Contest steering compass

Tacktick log/speed/depth

Hawk wind indicator

Safety Equipment

Manual bilge pump

Additional Equipment

Road Trailer

Construction

Built in 2005 by John Reid & Sons Ltd. Blue GRP hull with white styling stripes. Chine hull design. White GRP superstructure with moulded in non-slip surfaces. White rubber rubbing strake. Self draining cockpit. Lift keel with block and tackle system. Alloy keel. Lead ballast. Alloy rudder stock, with tiller and extension and lifting laminated wood rudder blade. Forward two berth cuddy cabin. Outboard engine well. Large cockpit with seating and storage under. Self draining anchor locker.

The Hawk 20 is a well proven, quality dayboat, with excellent sailing performance and a roomy cockpit. They are ideal for both safe family sailing and racing. This cabin version also offers daytime/overnight accommodation, has been little used and is presented in excellent order. A good opportunity to acquire a sought after, seagoing day/weekend boat at a substantial saving of the cost of a new boat. Viewing by appointment through Howard Ford Marine Sales.

Max Speed Knots

Cruising Speed

Engine Tankage

ABOUT HAWK 20

The Hawk 20 is 20 feet long and has a 7.4 feet beam. This 2005 Petrol Hawk 20 is capable of reaching a maximum speed of 6.00 knots and a cruising speed of 5.00

SIMILAR LOCATIONS

• Hawk in United Kingdom
• Boats in United Kingdom

REIDmarine have available four boats;

Hawk20 Day boat

Hawk20 cabin boat, foxer dinghy, starfish dinghy.

There are also a number of used boats for sale from time to time. REIDmarine also are a Cap Ferret distributor for their sports cruiser range.

Hawk 20 Sail Boat

This 20ft sea-going day boat is built to high quality and safety using excellent quality sails and fittings. The performance offered by this sailing boat makes it ideal whether wishing to cruise or use for racing.

More information on the Hawk 20 Sailboat on our Hawk 20 website.

The FOXER dinghy is an 11′ sailing/rowing dinghy which is easy to sail or row and can readily be used as a yacht tender.

The FOXER dinghy supports a small 2 to 4 horsepower outboard motor which can be lifted on davits with the motor fitted when used as a yacht tender.

More information on Foxer Dinghy on our Foxer Dinghy website

Starfish Boats

Our Starfish Dinghy was designed specifically with children in mind to provide a small stable rowing boat that will give them hours of endless fun & activity.

Starfish has the tangible benefits of being designed in accordance with the latest standards of safety legislation as employed by the European Union.

Light and easily portable, Starfish dinghies can be transported on a roof rack or car boot and unloaded effortlessly at the other end.

The Starfish brief – “to produce the ultimate boat with optimum safety.

More information on Starfish Boats on our Starfish boats website

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Search our catalog, go direct, enter a boat reference, hawk 20 cabin, £ 0 sold / unavailable.

• Boat REF#  ·  275453
• Length  ·  6.10m
• Year  ·  2011
• Construction  ·  GRP
• Underwater profile  ·  Lifting Keel
• Sleeping berths  ·  2
• Engine  ·  1 x gasoline 6hp, Mercury (2015)
• Lying  ·  Brighton

Boatshed Brighton

This boat is off the market but here are some boats that are still for sale.

• Specification
• Additional Information

Extra Details

Engine hours estimated Engine last serviced April 2019

Sloop rigged Aluminium spars (2011) with Stainless Steel standing rigging (2011)

Sail cover 2019 Manufacturer custom boom tent Cruising chute and spinnaker unused

Construction

Accommodation

4 halyard winches 2 sheet winches 1 anchors

Nav Equipment

Safety Equipment

1 bilge pumps (1 manual / 0 electric)

Broker's Comments

This yacht makes a great first impression - she looks very clean, tidy and well looked after indeed!

She benefits from a large, open cockpit with easy access to engine and helm controls, along with her lines that lead aft to the cockpit from the mast.

For her size, she has good stowage, with some small shelves below and roomy cockpit lockers.

With a reputation for robustness, self righting and unsinkability, along with a great performance, she could suit those wishing to race, as well as those who want to use her for weekend cruising and short stays on board.

No trailer.

She These boat details are subject to contract. Note: Offers on the asking price may be considered.

Owners FAQ's

How long have you owned the boat for.

For a short while only

Why are you selling her?

While I recognise the benefits of small-boat sailing (this is the second Hawk I’ve owned), I’ve decided to concentrate my efforts and resources into upgrading and improving my other, larger, wooden boat

Where have you sailed her?

Off Brighton

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• Boat REF#  ·  105472
• Length  ·  6.10m
• Year  ·  1998
• Construction  ·  GRP
• Underwater profile  ·  Lifting Keel
• Engine  ·  1 x gasoline 4hp, Yamaha (2005)
• Lying  ·  South Devon

Boatshed Dartmouth

This boat is off the market but here are some boats that are still for sale.

• Specification
• Additional Information

Extra Details

Sloop rigged Proctor Aluminium spars (1998) with Stainless Steel standing rigging (1998)

Spinnaker chute integral with hull

Electrical Systems

12 volt battery, 1 batteries charged by: solar panels

Construction

Self draining design Self righting even with keel raised

1 halyard winches 2 sheet winches 1 anchors (Plough) Boat cradle is included Cockpit cushions included

Nav Equipment

All round white navigation light

Safety Equipment

1 bilge pumps (1 manual / 0 electric)

Broker's Comments

What a great sea-going dayboat the Hawk 20 is. The current owner tells me she is a good family boat, taking 8 people with some speed if needed but very forgiving. And he has never capsized her either. The Hawk is described as a bomb-proof sailing boat (that incidentally took two years to design) and really is self-righting (even with the keel fully raised) and according to John Reid & Sons, unsinkable. Looking at this example I’d have to agree that this is a good family day boat with plenty of cockpit space, ample dry lockers, a decent outboard to motor when there’s no wind and a good set of sails including a spinnaker for some decent sailing. In fact the Hawk is strictly one-design making racing competitive and great fun. This Hawk is equipped with electrics for the cockpit instruments and all-round white navigation lights and even includes cockpit cushions for a truly relaxing sail when you’re not racing!

These boat details are subject to contract. Note: Offers on the asking price may be considered.

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Hawk 20 Cabin

Hawk 20 is a dedicated dayboat with no pretence at being anything else, however, the Hawk 20 Cabin now benefits from the additional comforts and convenience of a 2 berth cabin with cooker and toilet.

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Search our catalog, go direct, enter a boat reference, easily trailed and sailed, £ 0 sold / unavailable.

• Boat REF#  ·  313543
• Length  ·  6.10m
• Year  ·  1992
• Construction  ·  GRP
• Underwater profile  ·  Lifting Keel
• Engine  ·  1 x gasoline 4hp, Yamaha (2008)
• Lying  ·  Neyland, Pembrokeshire

Boatshed Wales

This boat is off the market but here are some boats that are still for sale.

• Specification
• Additional Information

Extra Details

Sloop rigged Proctor Aluminium spars (1992) with Stainless Steel standing rigging (1992)

Sails are in original but fair condition Cruising chute with pole on boom

Construction

2 halyard winches 2 sheet winches 1 anchors (Plough) 1.50m of chain 25.00m of rode

Nav Equipment

Safety Equipment

1 bilge pumps (1 manual / 0 electric)

Broker's Comments

The Hawk 20 is a performance trailer sailer, know for being self-righting, unsinkable and built to a high quality.

These good looking boats are light enough to tow behind most vehicles, easily rigged and launched and a blast to sail, either competitively, or for the love of sailing.

This model shows well for her 30 years. The topsides, deck and cockpit present nicely. The rig is together and the sails, although of an age, appear in good usable condition. The hull has been recently antifouled (May 2020)

The boat comes with 4hp Yamaha which the seller tell us is in good working order. The engine was professionally serviced in August 2020. As well as internal fuel tank, there is an 11 litre external tank included.

The trailer comes with lighting -board, front mast support as well as transom mounted mast foot support for transport.

For anyone seeking simple yet exhilarating sailing, with plenty of diversity in the mix, this is a well presented package offered at a great price.

These boat details are subject to contract. Note: Offers on the asking price may be considered.

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Mike de Graaf

Cost Of Ownership