J/88 (J/Boats) - Sailboat specifications - Boat-Specs.com (2024)

Detailed sailboat specifications and datasheets since 2015

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Sailboat specifications

  • Last update: 13rd March 2020

The J/88 is a 29’2”(8.9m) cruiser-racer sailboat designed by Alan Johnstone (United States). She is built since 2013 by J/Boats (United States).

J/88's main features

Model

J/88

Hull type

Monohull

Category

Cruiser-racer sailboat

Sailboat builder

J/Boats

Sailboat designer

Alan Johnstone

Country

United States

Construction

GRP (glass reinforced polyester):
Sandwich fiberglass polyester (vacuum infusion)

First built hull

2013

Last built hull

Still in production

Appendages

Keel : fin with bulb

Helm

Single tiller

Rudder

Single rudder on amas with t-foils

Unsinkable

No

Trailerable

Yes

EC design category

iThe CE design category indicates the ability to cope with certain weather conditions (the sailboat is designed for these conditions)

A: Wind < force 9, Waves < 10m
B: Wind < force 8, Waves < 8m
C: Wind < force 6, Waves < 4m
D: Wind < force 4, Waves < 0,5m

B

Standard public price ex. VAT (indicative only)

About

92 000

(2020)

J/88's main dimensions

Hull length

29’ 2”8.9 m

Waterline length

26’ 10”8.18 m

Beam (width)

9’ 6”2.9 m

Draft

6’ 6”1.98 m

Light displacement (MLC)

4960 lb2250 kg

Ballast weight

1874 lb850 kg

J/88's rig and sails

Upwind sail area

511 ft²47.5 m²

Downwind sail area

1319 ft²122.5 m²

Mainsail area

296 ft²27.5 m²

Genoa area

215 ft²20 m²

Asymmetric spinnaker area

1023 ft²95 m²

Rigging type

Sloop Marconi fractional

Mast configuration

Deck stepped mast

Rotating spars

No

Number of levels of spreaders

2

Spreaders angle

Swept-back

Spars construction

Carbon fiber mast and aluminum boom

Standing rigging

Dyform

J/88's performances

Upwind sail area to displacement

iThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.

The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size.

Upwind: under 18 the ratio indicates a cruise oriented sailboat with limited performances especially in light wind, while over 25 it indicates a fast sailboat.

298 ft²/T27.66 m²/T

Downwind sail area to displacement

iThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.

The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size.

768 ft²/T71.34 m²/T

Displacement-length ratio (DLR)

iThe Displacement Length Ratio (DLR) is a figure that points out the boat's weight compared to its waterline length. The DLR is obtained by dividing the boat's displacement in tons by the cube of one one-hundredth of the waterline length (in feet).
The DLR can be used to compare the relative mass of different sailboats no matter what their length:

a DLR less than 180 is indicative of a really light sailboat (race boat made for planning), while a DLR greater than 300 is indicative of a heavy cruising sailboat.

116

Ballast ratio

iThe Ballast ratio is an indicator of stability; it is obtained by dividing the boat's displacement by the mass of the ballast. Since the stability depends also of the hull shapes and the position of the center of gravity, only the boats with similar ballast arrangements and hull shapes should be compared.

The higher the ballast ratio is, the greater is the stability.

38 %

Critical hull speed

iAs a ship moves in the water, it creates standing waves that oppose its movement. This effect increases dramatically the resistance when the boat reaches a speed-length ratio (speed-length ratio is the ratio between the speed in knots and the square root of the waterline length in feet) of about 1.2 (corresponding to a Froude Number of 0.35) . This very sharp rise in resistance, between speed-length ratio of 1.2 to 1.5, is insurmountable for heavy sailboats and so becomes an apparent barrier. This leads to the concept of "hull speed".
The hull speed is obtained by multiplying the square root of the waterline length (in feet) by 1.34.

6.94 knots

J/88's auxiliary engine

Engine(s)

1 inboard engine

Engine(s) power

14 HP

Fuel type

Diesel

Fuel tank capacity

7.9 gal30 liters

J/88's accommodations and layout

co*ckpit

Open aft co*ckpit

Cabin(s)

1

Berth(s) (min./max.)

2 / 4

Head(s)

1

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J/Boats J/88 - - 1/13
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J/Boats J/88 layout - - 5/13
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J/Boats J/88 layout - - 6/13
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J/Boats J/88 sailing - - 10/13
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J/Boats J/88 interior and accommodations - - 13/13
Picture extracted from the commercial documentation © J/Boats

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J/88 (J/Boats) - Sailboat specifications - Boat-Specs.com (2024)

FAQs

What is a J88 sailboat? ›

From the J design/build team that launched the J/70 and J/111, comes the NEW J/88, a 29' mid-size family speedster with stability, style and sailing comfort.

What is the J measurement on a sailboat? ›

Rig Dimensions
LOALength Overall - overall tip-to-tip length of the boat
JBase of the foretriangle measured from the front of the mast to the intersection of the forestay and deck
J2Base of staysail triangle
PLuff length of the mainsail
EFoot length of the mainsail
7 more rows

How many crews for J88? ›

J/88 Class Association

With maximum crew of six and strict sail limitations, the class rules help to keep costs under control and attracts sailors looking for a rewarding one design experience in a boat that also passes the all important family sailing test.

How much does a j80 sailboat weight? ›

It displaces 2,900 lb (1,315 kg) and carries 1,400 lb (635 kg) of ballast. The co*ckpit is 12 ft (3.7 m) long and the hull has a sealed buoyancy compartment on the bow.

How much does a j88 sailboat weight? ›

Length (feet/inches): 29.19 Ft. Beam: 9.6 Ft. Weight of rigged boat without sails: 4,990 lbs.

How big is a j80 sailboat? ›

Technical specifications
LOA8.50m
Hull length8.00m
Waterline length7.50m
Maximum beam2.49m
Draught1.50m
4 more rows

How big are J boats? ›

The current product line consists of eight models, ranging from the J/70 to the J/122E, ranging in length from 22.75 to 40 ft (6.9 to 12.2 m). A new 9 meter model has been announced for 2021. Past models have ranged from 22.5 to 64.5 ft (6.9 to 19.7 m), from the J/22 to the J/65.

What size is a J class boat? ›

About the Class

Designers had to produce a J Class yacht which had a rating of between 65 and 76 feet. That was not the length of the boats but a product of the limiting factors of the rule's equation.

What do the numbers on a sailboat mean? ›

These sail numbers are an important way of uniquely identifying a yacht for search and rescue purposes, and are a requirement of the Racing Rules of Sailing, Rule 77 - Identification on Sails. The RYA recommend that all yachts have a unique sail number.

What is a J88 in South Africa? ›

The J88 form, which is a medico-legal form in South Africa, is endorsed as prima facie evidence in cases of violence against women. This is endorsed by the Criminal Procedure Amendment Act, 2008 (Act 65 of 2008) (South Africa).

How much does a J80 cost? ›

The starting price is $32,000, the most expensive is $35,000, and the average price of $33,500.

What is the crew weight limit on a j80? ›

About J/80 North American Class

The OD rules specify a max crew weight of 770 lbs however the boat can be singlehanded for day sailing. Trailerable, the boat is set up with a single point lift that make it easy to hoist.

How many people can fit on a J80? ›

fixed lead keel (48% ballast ratio) the J/80 has a big-boat feel but only requires a max of 3 crew for racing. The boom is high for safety and good visibility and no one has to clamber over a cabin top because everyone fits in the 12 ft. long co*ckpit.

What is a j35 sailboat? ›

The J/35 is an American sailboat that was designed by Rod Johnstone as a racer and first built in 1983. J/35. Development. Designer. Rod Johnstone.

Why is it called a 420 sailboat? ›

The 420 is an International class recognised by World Sailing. The name refers to the boat's length of 420 centimetres (4.2 m; 13 ft 9 in).

What is a j70 sailboat? ›

J/70 is a trailerable, 6.93-metre (22.7 ft) American sailboat class designed by Alan Johnstone and first built in 2012. J/70. Development. Designer. Alan Johnstone.

What is a j24 sailboat? ›

The J/24 is an international One-Design and Midget Ocean Racing Club trailerable keelboat class built by J/Boats and defined by World Sailing. The J/24 was created to fulfill the diverse needs of recreational sailors such as cruising, one design racing, day sailing, and handicap racing. J/24. Class symbol.

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