JPK 1010

Sailboat specifications

The JPK 1010 is a 32’10” (10m) racer-cruiser sailboat designed by Jacques Valer (France). She is built since 2010 by JPK (France).

JPK 1010's main features

Model: JPK 1010
Hull type: Monohull
Category: Racer-cruiser sailboat
Sailboat builder: JPK
Sailboat designer: Jacques Valer
Country: France
Construction: GRP (glass reinforced polyester):
Sandwich fiberglass polyester (vacuum infusion)
First built hull: 2010
Last built hull: Still in production
Appendages: Keel : fin without bulb
Helm: Single tiller
Rudder: Single spade rudder (twin as option)
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
107 000 €
(2020)

JPK 1010's main dimensions

Hull length: 32’ 10”10 m
Waterline length: 28’ 8”8.76 m
Beam (width): 11’ 1”3.39 m
Draft: 6’ 6”1.98 m
Light displacement (M_LC): 8488 lb3850 kg
Ballast weight: 3638 lb1650 kg
Ballast type: Cast iron / lead fin

JPK 1010's rig and sails

Upwind sail area: 624 ft²58 m²
Downwind sail area: 1378 ft²128 m²
Mainsail area: 355 ft²33 m²
Genoa area: 269 ft²25 m²
Symmetric spinnaker area: 915 ft²85 m²
Asymmetric spinnaker area: 1023 ft²95 m²
I iFore triangle height (from mast foot to fore stay top attachment): 42’ 8”13.02 m
J iFore triangle base (from mast foot to bottom of forestay): 12’ 10”3.9 m
P iMainsail hoist measurement (from tack to head): 42’ 2”12.85 m
E iMainsail foot measurement (from tack to clew): 14’ 1”4.3 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 (carbon fiber spars as an option)
Standing rigging: 1x19 strand wire discontinuous

JPK 1010's performances

HN (French rating) iHN or "Handicap Nationale" is an empirical rating system used in France allowing various monohulls, of different sizes and designs, to race each other fairly. It is particularly suitable for cruiser and cruiser-racer. Therefore, by comparing these values, we can have an indication of the relative speed of 2 boats.: 27.0
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.: 254 ft²/T23.61 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.: 561 ft²/T52.11 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.: 162
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.: 43 %
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.: 7.18 knots