JPK 1030

Sailboat specifications

The JPK 1030 is a 33’11” (10.34m) racer-cruiser sailboat designed by Jacques Valer (France). She is built since 2019 by JPK (France).

Find out more about the JPK 1030 on Boat-Spec's blog: European Yacht of the Year 2020 nominated sailboats.

JPK 1030's main features

Model: JPK 1030
Hull type: Monohull
Category: Racer-cruiser sailboat
Sailboat builder: JPK
Sailboat designer: Jacques Valer
Country: France
Construction: GRP (glass reinforced polyester):
- Hull: Sandwich Airex fiberglass polyester (vacuum infusion)
- Deck: Sandwich Airex fiberglass polyester (vacuum infusion)
First built hull: 2019
Last built hull: Still in production
Appendages: Keel : fin without bulb
Helm: Single tiller
Rudder: Twin spade rudders
Unsinkable: No
Trailerable: No
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: A
Standard public price ex. VAT (indicative only): About
113 000 €
(2020)

JPK 1030's main dimensions

Hull length: 33’ 11”10.34 m
Waterline length: 29’ 8”9.06 m
Beam (width): 10’ 7”3.24 m
Draft: 6’ 6”1.98 m
Light displacement (M_LC): 7937 lb3600 kg
Ballast weight: 3307 lb1500 kg
Ballast type: Cast iron / lead fin

JPK 1030's rig and sails

Upwind sail area: 657 ft²61 m²
Downwind sail area: 1507 ft²140 m²
Mainsail area: 377 ft²35 m²
Genoa area: 280 ft²26 m²
Symmetric spinnaker area: 1023 ft²95 m²
Asymmetric spinnaker area: 1130 ft²105 m²
Rigging type: Sloop Marconi 9/10
Mast configuration: Deck stepped mast
Rotating spars: No
Number of levels of spreaders: 2
Spreaders angle: Swept-back
Spars construction: Aluminum spars (carbon fiber spars as an option)
Standing rigging: 1x19 strand wire discontinuous

JPK 1030'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.: 280 ft²/T25.97 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.: 642 ft²/T59.6 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.: 137
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.: 42 %
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.: 7.31 knots