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Sailboat specifications and datasheets

IMX 45

The IMX 45 is a 45’1” monohull sailboat designed by Niels Jeppesen. She was built by X-Yachts (Denmark) and made of sandwich Divinicell / fiberglass / vinylester vaccum bagged. This sailboat was produced between 2002 and 2004 with 24 hulls completed.

The IMX 45 belongs to the IMX range.

X-Yachts IMX 45 X-Yachts IMX 45 sailplanX-Yachts IMX 45 layoutX-Yachts IMX 45 sailingX-Yachts IMX 45 sailingX-Yachts IMX 45 sailingX-Yachts IMX 45 accommodationsX-Yachts IMX 45 accommodations
IMX 45's   Main Features
Model IMX 45
Type of hull Monohull
Category Offshore racer-cruiser sailboat
Shipyard
Designer Niels Jeppesen
Range IMX
Construction Hull and deck:
sandwich Divinicell / fiberglass / vinylester vaccum bagged with galvanised steel frame
First built hull 2002
Last built hull 2004
Number of hulls built 24
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
IMX 45's   Main dimensions
Hull length 45’ 1”
Waterline length 39’ 4”
Beam (width) 13’ 7”
Draft 9’
Light displacement 20062 lbs
Ballast weight 9105 lbs
Ballast type Cast iron fin with lead bulb
IMX 45's   Rig and sails
Upwind sail area 1384 sq.ft
Downwind sail area 2455 sq.ft
Mainsail area 701 sq.ft
Genoa area 684 sq.ft
Solent area 547 sq.ft
Jib area 366 sq.ft
Symetric spinnaker area 1755 sq.ft
Rigging type Sloop Marconi 9/10
Rotating spars No
Mast position Keel stepped mast
Spars Mast and boom in Carbon fiber
Number of levels of spreaders 3
Spreaders angle Swept-back
IiFore triangle height (from mast foot to fore stay attachment) 61’ 8”
JiFore triangle base (from mast foot to bottom of forestay) 16’ 5”
PiMainsail hoist measurement (from tack to head) 59’ 11”
EiMainsail foot measurement (from tack to clew) 20’ 4”
IMX 45'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.
29.50
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.
52.33
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.
150
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.
45 %
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.
8.40 knots
IMX 45's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 55 HP
Fuel type Diesel
IMX 45's   Accommodation
Cabin(s) (min/max) 2 / 3
Berth(s) (min/max) 5 / 10
Head(s) (min/max) 1 / 2
Maximum headroom 6’ 7”

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