J/95
Sailboat specifications
The J/95 is a 31’2” (9.51m) cruiser-racer sailboat designed by Alan Johnstone (United States). She was built since 2009 (and now discontinued) by J/Boats (United States).
J/95's main features
- Model
- J/95
- 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
- 2009
- Last built hull
- Discontinued
- Appendages
- Centerboard : pivoting centerboard in the keel
- Helm
- Single helm wheel
- Rudder
- Twin spade rudders
- Unsinkable
- No
- Trailerable
- No
- Standard public price ex. VAT (indicative only)
- N/A €
J/95's main dimensions
- Hull length
- 31’ 2”9.51 m
- Waterline length
- 28’ 5”8.66 m
- Beam (width)
- 10’3.05 m
- Draft
- 5’ 6”1.68 m
- Draft when appendages up
- 3’0.92 m
- Light displacement (MLC)
- 6001 lb2722 kg
- Ballast weight
- 2449 lb1111 kg
- Ballast type
- Lead
J/95's rig and sails
- Upwind sail area
- 450 ft²41.8 m²
- IiFore triangle height (from mast foot to fore stay top attachment)
- 36’ 7”11.16 m
- JiFore triangle base (from mast foot to bottom of forestay)
- 11’3.35 m
- PiMainsail hoist measurement (from tack to head)
- 36’ 7”11.16 m
- EiMainsail foot measurement (from tack to clew)
- 13’3.96 m
- Rigging type
- Sloop Marconi 9/10
- Mast configuration
- Keel stepped mast
- Rotating spars
- No
- Number of levels of spreaders
- 2
- Spreaders angle
- Swept-back
- Spars construction
- Aluminum spars
- Standing rigging
- Single-strand (ROD)
J/95's performances
- Upwind sail area to displacementiThe 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. - 231 ft²/T21.44 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. - 119
- Ballast ratioiThe 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. - 41 %
- Critical hull speediAs 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. - 7.14 knots
J/95's auxiliary engine
- Engine(s)
- 1 inboard engine
- Engine(s) power
- 14 HP
- Fuel type
- Diesel
- Fuel tank capacity
- 14.5 gal55 liters
J/95's accommodations and layout
- Cockpit
- Open aft cockpit
- Cabin(s)
- 1
- Berth(s) (min./max.)
- 2 / 4
- Head(s)
- 1
- Freshwater tank capacity
- 19.8 gal75 liters
J/Boats J/95 interior and accommodations - - 10/15
Picture extracted from the commercial documentation © J/Boats
Picture extracted from the commercial documentation © J/Boats
J/Boats J/95 interior and accommodations - - 11/15
Picture extracted from the commercial documentation © J/Boats
Picture extracted from the commercial documentation © J/Boats
J/Boats J/95 interior and accommodations - - 12/15
Picture extracted from the commercial documentation © J/Boats
Picture extracted from the commercial documentation © J/Boats
J/Boats J/95 interior and accommodations - - 13/15
Picture extracted from the commercial documentation © J/Boats
Picture extracted from the commercial documentation © J/Boats
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