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Sailboat specifications and datasheets

X-302 mk II

The X-302, here in "mk II" version, is a 29’11” monohull sailboat designed by Niels Jeppesen. She was built by X-Yachts (Denmark) and made of sandwich fiberglass / polyester with galvanised steel frame. This sailboat was produced between 1994 and 2004 with 117 hulls completed.
X-Yachts X-302 X-Yachts X-302 sailplanX-Yachts X-302 layoutX-Yachts X-302 layoutX-Yachts X-302 sailingX-Yachts X-302 sailing
X-302's   Main Features
Model X-302
Version Mk II
Type of hull Monohull
Shipyard
Designer Niels Jeppesen
Construction Hull and deck:
sandwich fiberglass / polyester with galvanised steel frame
First built hull 1994
Last built hull 2004
Number of hulls built 117
Appendages Keel :
Fin with bulb
Helm 1 tiller
Rudder 1 spade rudder
Unsinkable No
Trailerable No
EC certification A
Standard public price (indicative only) N/A
X-302's   Main dimensions
Length overall 30’ 8”
Hull length 29’ 11”
Waterline length 26’ 5”
Beam (width) 9’ 10”
Draft 5’ 7”
Light displacement 7937 lbs
Ballast weight 3307 lbs
Ballast type Cast iron
French customs tonnage 7.82 Tx
X-302's   Rig and sails
Upwind sail area 567 sq.ft
Downwind sail area 926 sq.ft
Mainsail area 280 sq.ft
Genoa area 287 sq.ft
Solent area 192 sq.ft
Jib area 153 sq.ft
Symetric spinnaker area 646 sq.ft
Rigging type Sloop Marconi 7/8
Spars Mast and boom in Aluminum
Standing rigging Single-strand (ROD)
Number of levels of spreaders 2
Spreaders angle Swept-back
IiFore triangle height (from mast foot to fore stay attachment) 37’ 1”
JiFore triangle base (from mast foot to bottom of forestay) 10’ 4”
PiMainsail hoist measurement (from tack to head) 37’ 1”
EiMainsail foot measurement (from tack to clew) 13’ 1”
X-302's   Performances
HN (French rating) 21.0
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 23 it indicates a fast sailboat.
22.44
Downwind 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 23 it indicates a fast sailboat.
36.61
Displacement-Length ratio (DLR)iThe Displacement Length ratio is a figure that points out the boat's weight compared to its waterline length. 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.
195
Ballast ratioiThe Ballast ratio is an indicator of the stability; it is obtained by dividing the boat's displacement by the weight of the ballast. Since the stability depends also of the hull shape and the position of the center of gravity, only boats with similar ballast arrangements and hull shape should be considered.
Higher the ballast ratio is, greater is the stability.
42 %
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.
6.89 knots
X-302's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine (min/max) 9 HP / 20 HP
Fuel type Diesel
Fuel tank capacity 13.2 gal
X-302's   Accommodation
Cabin(s) 2
Berth(s) 6
Head(s) 1
Fresh water tank capacity 31.7 gal
X-302's   Saloon
Maximum headroom 6’ 1”
X-302's   Aft cabin
Berth length 6’ 7”
Berth width 4’ 5”

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