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 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

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.

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 hull speed of the j80 sailboat? ›

The design has a hull speed of 6.29 kn (11.65 km/h).

What size are the J boats? ›

All J/Boat designs are monohull, sloop-rigged keelboats constructed of cored sandwich fiberglass. 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.

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 do you calculate the weight of a sailboat? ›

The usual method is to calculate the displacement of the boat - the weight of the volume of water that would be moved by the immersion of the boat. This is the equivalent of the boat's weight and is a very important calculation in boat design, for if the boat weighs more than the water it displaces, it will sink.

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 much is a J99? ›

There are currently 23 listings available on Boat Trader by both private sellers and professional boat dealers. The oldest boat was built in 2021 and the newest model is 2021. The starting price is $239,000, the most expensive is $239,000, and the average price of $239,000.

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).

How much does a J80 cost? ›

The starting price is $29,900, the most expensive is $32,000, and the average price of $30,950. Related boats include the following models: J/100, J/105 and J/160. Boat Trader works with thousands of boat dealers and brokers to bring you one of the largest collections of J Boats J 80 boats on the market.

In which position does a sailboat travel the fastest? ›

The orientation of a sailboat also affects its speed and stability. Close hauled and beam reach positions offer increased speed but may sacrifice some stability due to heeling. Broad reach and running positions provide more stability but may sacrifice some speed compared to sailing closer to the wind.

How fast can a sailboat go in a day? ›

The average mid-sized sailboat (32′ – 48′) cruises at roughly 6 knots. If you sail for 24 hours, you cover on average 144 knots, but if you sail for 8 hours, you cover roughly 50 NM.

How much does the J class boat cost? ›

Any serious racer will know J/Boats and many will have owned one at some point. J/Boats are precision machines that command a premium price and will range from $10,000 to $2,000,000, and have sprouted a performance sailing school called J World with five bases around the country.

What is the meaning of J boat? ›

noun. 1. : a large yacht of the 76-foot rating class. 2. : a small sailboat raced by children.

What are the different types of J boats? ›

Current J/Models
  • J/70. LOA 22.75' (6.93m) The J/70 is J Boats' first ramp-launchable sportboat. ...
  • J/80. LOA 26.30' (8.00m) ...
  • J/9. LOA 28.00' (8.54m) ...
  • J/88. LOA 29.19' (8.89m) ...
  • J/99. LOA 32.62' (9.94m) ...
  • J/111. LOA 36.50' (11.10m) ...
  • J/112E. LOA 36.00' (10.99m) ...
  • J/121. LOA 40.00' (12.10m)

How much does a J 24 sailboat weight? ›

J/24
Development
ConstructionGRP
Hull weight1,406 kg (3,100 lb)
LOA7.32 m (24.0 ft)
LWL6.10 m (20.0 ft)
23 more rows

How heavy is an FJ sailboat? ›

International FJ
Development
Displacement165 lb (75 kg)
Draft2.50 ft (0.76 m) with centerboard down
TrapezeTrapeze for the FJ was introduced around 1982.
Hull
25 more rows

How much does a J70 sailboat weigh? ›

The J70 weighs 1750 pounds (794 kilos), so it's easy to tow on a trailer. Stepping the mast and rigging up to launch can take an hour or less, once your crew has learned the routine.

References

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