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).

- Model
- J/88
- Hull type
- Monohull
- Category
- Cruiser-racer sailboat
- Sailboat builder
- Sailboat designer
- 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)
- About92 000 €(2020)

- 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 (M
_{LC}) - 4960 lb2250 kg
- Ballast weight
- 1874 lb850 kg

- 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

- 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

- Engine(s)
- 1 inboard engine
- Engine(s) power
- 14 HP
- Fuel type
- Diesel
- Fuel tank capacity
- 7.9 gal30 liters

- Cockpit
- Open aft cockpit
- Cabin(s)
- 1
- Berth(s) (min./max.)
- 2 / 4
- Head(s)
- 1

Sailboats

First built hull

Hull length

2012

27’ 5”8.35 m

2009

31’ 2”9.51 m

2015

36’ 1”10.99 m

2003

31’ 6”9.6 m

2017

32’9.75 m

1994

29’ 6”8.98 m

2016

35’ 10”10.9 m

2017

40’12.2 m

1971

30’9.14 m

1999

27’ 11”8.5 m

2005

29’ 11”9.12 m

2009

30’ 4”9.25 m

2009

31’ 8”9.65 m

1990

30’9.14 m

1997

31’ 2”9.5 m