Detailed sailboat specifications and datasheets since 2015
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Hallberg-Rassy 42F MkI Shoal draft

Sailboat specifications

The Hallberg-Rassy 42F MkI is a 43’5” (13.22m) cruising sailboat designed by Frers Naval Architecture & Engineering (Argentina). She was built between 1991 and 2001 by Hallberg-Rassy (Sweden) with 53 hulls completed. The Shoal draft version features a shorter keel to grant access to shallow areas.

The Hallberg-Rassy 42F MkI is as well listed, on Boat-Specs.com, in Standard version (see all the versions compared).

Hallberg-Rassy 42F MkI's main features

Model
Hallberg-Rassy 42F MkI
Version
Shoal draft
Hull type
Monohull
Category
Offshore cruising sailboat
Sailboat builder
Sailboat designer
Country
Sweden
Construction
GRP (glass reinforced polyester):
Single skin bottom, sandwich sides and deck: Divinicell fiberglass polyester
Number of hulls built
53
First built hull
1991
Last built hull
2001
Appendages
Keel : L-shaped keel (with bulb)
Helm
Single helm wheel
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 < 0,5m
A
Standard public price ex. VAT (indicative only)
N/A €

Hallberg-Rassy 42F MkI's main dimensions

Hull length
43’ 5”13.22 m
Waterline length
34’10.35 m
Beam (width)
13’3.95 m
Draft
5’ 7”1.7 m
Light displacement (MLC)
27558 lb12500 kg
Ballast weight
10362 lb4700 kg
Ballast type
Lead on deep GRP bilge

Hallberg-Rassy 42F MkI's rig and sails

Upwind sail area
1087 ft²101 m²
Rigging type
Sloop Marconi masthead
Mast configuration
Deck stepped mast
Rotating spars
No
Number of levels of spreaders
2
Spreaders angle
No spreader
Spars construction
Aluminum spars
Standing rigging
1x19 strand wire

Hallberg-Rassy 42F MkI'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.
202 ft²/T18.75 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.
319
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.
38 %
Righting moment @ 30°
 iThe righting moment is a moment (torque) that tends to restore a boat to its previous position after heeling. Its value corresponds to the torque needed to heel the boat for this angle.
Higher the righting moment is for an angle, greater is the stability.
43398 lb.ft6000 kg.m
Maximum righting moment
 iThe righting moment is a moment (torque) that tends to restore a boat to its previous position after heeling. Its value corresponds to the torque needed to heel the boat for this angle.
Higher the righting moment is for an angle, greater is the stability.
62927 lb.ft8700 kg.m @ 65.00 °
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.
7.81 knots

Hallberg-Rassy 42F MkI's auxiliary engine

Engine(s)
1 inboard engine
Engine(s) power
74 HP
Fuel type
Diesel
Fuel tank capacity
111 gal420 liters

Hallberg-Rassy 42F MkI's accommodations and layout

Cockpit
Center cockpit
Freshwater tank capacity
181 gal685 liters
Boiler capacity
10.6 gal40 liters
Maximum headroom
6’ 7”2 m
Galley headroom
6’ 4”1.92 m

Hallberg-Rassy 42F MkI's fore cabin

Maximum headroom
6’ 6”1.98 m

Hallberg-Rassy 42F MkI's aft cabin

Maximum headroom
6’ 4”1.91 m
Berth length
6’ 7”2 m
Berth width
3’ 11”1.2 m
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