harbor 30 sailboat

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• Sailboat Guide

Harbor 30 is a 30 ′ 8 ″ / 9.4 m monohull sailboat designed by Steven Schock and built by Schock W.D. starting in 2009.

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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W.D. Schock Boat Builders Presents Harbor 20

Overview of the Harbor 20 Sailboat

The Harbor 20 "The classic modern daysailer"

Classic daysailer meets state of the art marine technology.

The Harbor 20 presents a graceful silhouette, its modern underbody and rig make for a fast and easily-handled contemporary daysailer. The result is a beautiful, cost effective, and easy-to-use boat that will always be in style.

Comfortable Cruising

 The Harbor 20’s accommodating cockpit holds up to eight guests, and no  one needs to sit on the rail to balance the boat, or duck under the boom  when tacking. Deep coamings provide comfortable back support, and two  easily accessible ice chests quickly render your favorite refreshment.  

Natural Club Racer

 A fine entry with firm bilges and a long run aft give the Harbor 20 high  speed potential, high stability and the ability to move smoothly  through choppy water. The rudder is placed well aft, and the 900 lb.  bulb keel keeps the weight low. This keel design gives the boat plenty  of stability without slowing the boat down in light air. The Harbor 20  can be raced competitively either single-handily or with a crew of  two or more. 

Sensible Design, Simplified Sail Control

With incredible stability and loads of conveniences, the Harbor 20 can  be rigged in minutes and sailed solo or with a group. There  is no better opportunity to share sailing excitement with friends and  family – whether they are seasoned sailors or completely inexperienced.  Celebrating over seventy years of boat-building excellence, the Schock  heritage continues with the Harbor 20.  

Designed with simplicity in mind

 The roller-furling headsail and self-tacking club boom will delight your  crew. And when running wing-and-wing, the club boom acts as an  automatic winger, effortlessly holding out the jib. And the control  panel just aft of the mast is centralized convenience at its very best.  Ready to go sail? Simply raise the  main, roll out the jib, and throw off the bow line. When you return to  the dock, just roll the jib back up, stow the main neatly on the boom  using the lazy jacks, and cover the boat and jib with the optional  cockpit cover and jib sock.  

 ll halyards and lines are led below the deck to Harken hardware  mounted on a shelf at the aft edge of the cuddy cabin. Everything  is within easy reach for the skipper and crew.

Specifications & Options

Specifications, electric motor options.

Designed by: Steven W. Schock

Exclusive Builder: WD Schock Corp (USA) 

First Built: 1997

Construction: Fiber Glass

Draft: 3’6”

BALLAST: 900 lbs.

Displacement:1,800 lbs

MAIN: 151 sq. ft.

Jib: 8 sq. ft.

Draft (max): 3.50’

Sail Area/Disp.1: 23.84

Bal./Disp. 50.00 %

Disp./Len. 163.56 

An electric motor is available to push the boat at about five knots and to provide convenient, quiet, and odorless propulsion. The motor, which is permanently mounted on a stainless steel pivot arm, swings out of the aft lazarette and pins onto the starboard gunwale. No wrestling with an outboard and no through-hull fittings! Four hours at maximum speed comes from the two batteries installed forward under the cockpit seats. The 24 volt system can be easily recharged with the in-line three step charger. Just plug it in at the dock.

There are many customize options available, let our representatives help you customize the perfect boat for your needs. Call us today at (951) 277-3377

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Copyright © 2024 WD Schock - All Rights Reserved.

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San Diego’s Sailing Club for Lessons and Rentals

Superior yachts, professional sailing lessons, and winner of the “ASA School of the Year” award by the American Sailing Association. Harbor Sailboats is proud to be recognized as San Diego’s finest sailing club and sailing lessons facility.

Sailing Lessons

Professional instructors Taught on new boats Every weekend

Just completed the ASA 101 Sailing Course at Harbor Sailboats. The experience was beyond expectations. Our instructor, Cole, was energetic and passionate. He taught in such a clear and understandable manner.

-Google User Paul A. 

I chose Harbor Sailboats over all the other sailing clubs in San Diego when I moved here 25 years ago because they have the best selection of boats and the staff is the friendliest! It’s such a great club!

– Google User Tony L. 

I have had a great experience joining this club. Everyone I’ve interacted from the owner to the front office to the ASA 101 instructor Tom has been warm, welcoming, and professional. Can’t recommend them highly enough! .

– Google User David M. 

Read More Harbor Sailboats Reviews

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2019 Capri 22

Specifications:

• Capacity – 5
• Length – 22′
• Furling Main – No
• Furling Jib – Yes
• Cabins- N/A
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• Canvas- N/A
• Winches- Manual
• Single Tiller
• Single Rudder
• Outboard Engine

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2006 Catalina 28 (2 in Fleet)

• Capacity – 7
• Length – 29.5′
• Beam – 10.4′
• Draft – 5.2′
• Head- Manual
• Single Helm

Boat names: Dee, Louis

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Oceanis 31 Camaya

2013, 2017, 2018, 2019 Oceanis 31 (4 in Fleet)

• Length – 31′.8″
• Beam – 11.11″
• Draft – 5.1′
• Furling Main -Yes, Camaya, Evocative, Laura No= Jessica
• Head-Manual= Evocative, Jessica  Electric= Camaya, Laura
• Canvas- Bimini

Boat name: Jessica, Camaya, Evocative, Laura

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2010, 2011 Oceanis 34 (2 in Fleet)

• Capacity – 8
• Length – 33′ 11″
• Draft – 6′ 1″‘
• Furling Main – Yes

Boat name: Ruth, Kayleigh

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2015 Oceanis 35

• Length – 32.9
• Beam – 12.2
• Draft – 6.1
• Head- Electric
• Canvas- Bimini, Connector
• Twin Rudder

Boat name: Silver Lining

Oceanis 35.1

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2021 (2), 2018 Oceanis 35.1

• Canvas- Bimini, Connector, Dodger

Boat name: CJ, Re-Berth, Why Knot

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Oceanis 51.1

2019 Oceanis 51.1

• Capacity – 12
• Length – 52’4”
• Beam – 15’9”
• Draft – 9’5”
• Winches- Electric
• Bow Thruster

Boat Name:  Luna Sea

New Beneteau Oceanis 46.1 Ph: Guido Cantini / Beneteau

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2020 Oceanis 46.1

• Length – 37’11
• Beam – 14’9”
• Draft – 8’8”

Boat name: Isla

©JEAN-BAPTISTE D'ENQUIN - BENETEAU - OCEANIS 34.1

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2023 Oceanis 34.1

• Length – 35.4
• Beam – 11.9
• Draft – 6.5

Boat name: Bijou

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2017 Oceanis 37

• Length – 37’8’
• Beam – 12’10’
• Draft – 6.0′

Boat name: Jasmine

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21/09/2011 – Portofino (ITA) – Chantier Beneteau – Oceanis 45***21/09/2011 – Portofino (ITA) – Chantier Beneteau – Oceanis 45

2016 Oceanis 45

• Length – 45’9”
• Beam – 14’9”
• Draft – 7’5”

Boat Name: Esperanza

Oceanis 41.1

04/07/3017; Les EMbiez (FRA; 83) - Chantier Beneteau; Oceanis 41.1

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2020 and 2019 Oceanis 41.1

• Length – 40’9”
• Beam – 13’9”
• Draft – 7’1”
• Canvas- Bimini, Dodger and Connector
• Winches- Electric Main
• Bow Thrsuter

Boat Name: Nancy Jean II and Keelin It

Oceanis 38.1

04/07/3017; Les EMbiez (FRA; 83) - Chantier Beneteau; Oceanis 38.1

04/07/3017; Les EMbiez (FRA; 83) – Chantier Beneteau; Oceanis 38.1

2021 Oceanis 38.1

• Capacity – 10
• Length – 37’9”
• Beam – 13’1”
• Draft – 6’10”
• Canvas- Bimini, Dodger, Connector

Boat Name: Knotty Berth

Oceanis 30.1

Voilier Océanis 30.1,shooting Groupe Bénéteau en Finlande

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2022 Oceanis 30.1

• Length – 31’2”
• Beam – 9’8”
• Draft – 6’1”

Boat Name: Ms NautiGirl

ALOHA 30 Detailed Review

If you are a boat enthusiast looking to get more information on specs, built, make, etc. of different boats, then here is a complete review of ALOHA 30. Built by Ouyang Boat Works (CAN) and designed by Ron Holland, the boat was first built in 1986. It has a hull type of Fin w/spade rudder and LOA is 9.14. Its sail area/displacement ratio 19.63. Its auxiliary power tank, manufactured by Westerbeke or Volvo, runs on Diesel.

ALOHA 30 has retained its value as a result of superior building, a solid reputation, and a devoted owner base. Read on to find out more about ALOHA 30 and decide if it is a fit for your boating needs.

Boat Information

Boat specifications, sail boat calculation, rig and sail specs, auxillary power tank, accomodations, contributions, who designed the aloha 30.

ALOHA 30 was designed by Ron Holland.

Who builds ALOHA 30?

ALOHA 30 is built by Ouyang Boat Works (CAN).

When was ALOHA 30 first built?

ALOHA 30 was first built in 1986.

How long is ALOHA 30?

ALOHA 30 is 7.92 m in length.

What is mast height on ALOHA 30?

ALOHA 30 has a mast height of 11.43 m.

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