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Sailboat specifications and datasheets

X-37 standard

The X-37, here in "standard" version, is a 37’2” monohull sailboat designed by Niels Jeppesen. She was built by X-Yachts (Denmark) and made of sandwich fiberglass / polyester. This sailboat was produced between 2004 and 2010 with 148 hulls completed.

The X-37 is as well listed, on Boat-Specs.com, in version Shoal draft and Sport.

X-Yachts X-37 X-Yachts X-37 sailplanX-Yachts X-37 layoutX-Yachts X-37 sailingX-Yachts X-37 sailingX-Yachts X-37 sailingX-Yachts X-37 sailingX-Yachts X-37 accommodationsX-Yachts X-37 accommodations
X-37's   Main Features
Model X-37
Version Standard
Type of hull Monohull
Category Cruiser-racer sailboat
Shipyard
Designer Niels Jeppesen
Construction Hull and deck:
sandwich fiberglass / polyester
First built hull 2004
Last built hull 2010
Number of hulls built 148
Appendages Keel :
Fin with bulb
Helm 1 wheel
Rudder 1 spade rudder
Cockpit Closed aft cockpit
Unsinkable No
Trailerable No
EC certification A
Standard public price ex. VAT (indicative only) N/A
X-37's   Main dimensions
Hull length 37’ 2”
Waterline length 32’ 1”
Beam (width) 11’ 5”
Draft 6’ 6”
Mast height from DWL 60’ 5”
Light displacement 14110 lbs
Ballast weight 5986 lbs
French customs tonnage 12.99 Tx
X-37's   Rig and sails
Upwind sail area 932 sq.ft
Downwind sail area 1620 sq.ft
Mainsail area 470 sq.ft
Genoa area 462 sq.ft
Solent area 369 sq.ft
Jib area 293 sq.ft
Symetric spinnaker area 1150 sq.ft
Rigging type Sloop Marconi 9/10
Rotating spars No
Mast position Keel stepped mast
Spars Mast and boom in Aluminum
Number of levels of spreaders 2
Spreaders angle Swept-back
X-37'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 23 it indicates a fast sailboat.
25.12
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.
43.66
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.
193
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.
7.59 knots
X-37's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 29 HP
Fuel type Diesel
X-37's   Accommodation
Cabin(s) (min/max) 2 / 3
Berth(s) (min/max) 4 / 8
Head(s) (min/max) 1 / 2
Maximum headroom 6’ 1”

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