IMX 70
Sailboat specifications
The IMX 70 is a 70’2” (21.4m) racer-cruiser sailboat designed by Niels Jeppesen (Denmark). She was built between 2005 and 2005 by X-Yachts (Denmark).
IMX 70's main features
Model
IMX 70
Hull type
Monohull
Category
Offshore racer-cruiser sailboat
Sailboat builder
Sailboat designer
Sailboat range
Country
Denmark
Construction
GRP (glass reinforced polyester):
Sandwich fiberglass polyester with galvanized steel frame
Number of hulls built
1
First built hull
2005
Last built hull
2005
Appendages
Keel : T-shaped keel (with bulb)
Helm
Twin helm wheels
Rudder
Single spade rudder
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 < 0,5mA
Standard public price ex. VAT (indicative only)
IMX 70's main dimensions
Hull length
70’ 2”21.4 m
Waterline length
61’ 1”18.63 m
Beam (width)
17’ 7”5.37 m
Draft
13’ 1”4 m
Light displacement (MLC)
61729 lb28000 kg
Ballast weight
22708 lb10300 kg
Ballast type
Cast iron fin with lead bulb
IMX 70's rig and sails
Upwind sail area
2941 ft²273.2 m²
Downwind sail area
5659 ft²525.7 m²
Mainsail area
1601 ft²148.7 m²
Genoa area
1340 ft²124.5 m²
Asymmetric spinnaker area
4058 ft²377 m²
I
iFore triangle height (from mast foot to fore stay top attachment)94’28.65 m
J
iFore triangle base (from mast foot to bottom of forestay)25’ 11”7.9 m
P
iMainsail hoist measurement (from tack to head)92’ 2”28.1 m
E
iMainsail foot measurement (from tack to clew)30’ 2”9.2 m
Rigging type
Sloop Marconi 7/8
Mast configuration
Keel stepped mast
Rotating spars
No
Number of levels of spreaders
3
Spreaders angle
Swept-back
Spars construction
Carbon fiber spars
IMX 70'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.319 ft²/T29.63 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.614 ft²/T57.01 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.123
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.37 %
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 1.34.10.48 knots
IMX 70's auxiliary engine
Engine(s)
2 inboard engines
Engine(s) power
160 HP
Fuel type
Diesel
IMX 70's accommodations and layout
Cockpit
Open aft cockpit
Cabin(s)
4
Berth(s) (min./max.)
7 / 9
Head(s)
4
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