Hallberg-Rassy 48 MkI's main features
Model
Hallberg-Rassy 48 MkI
Hull type
Monohull
Category
Offshore cruising sailboat
Sailboat builder
Sailboat designer
Country
Sweden
Construction
GRP (glass reinforced polyester):
Sandwich fiberglass polyester
Number of hulls built
69
First built hull
2004
Last built hull
2013
Appendages
Keel : L-shaped keel (with bulb)
Helm
Single helm wheel
Rudder
Single semi-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)
Hallberg-Rassy 48 MkI's main dimensions
Hull length
49’ 2”14.99 m
Waterline length
43’ 6”13.25 m
Beam (width)
14’ 10”4.5 m
Draft
7’ 8”2.35 m
Mast height from DWL
71’ 5”21.75 m
Light displacement (MLC)
40786 lb18500 kg
Ballast weight
17086 lb7750 kg
Ballast type
Lead on deep GRP bilge
Hallberg-Rassy 48 MkI's rig and sails
Upwind sail area
1495 ft²138.9 m²
Rigging type
Sloop Marconi masthead
Mast configuration
Deck stepped mast
Rotating spars
No
Number of levels of spreaders
3
Spreaders angle
Swept-back
Spars construction
Aluminum spars
Hallberg-Rassy 48 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.214 ft²/T19.86 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.225
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.42 %
Righting moment @ 1°
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.3378 lb.ft467 kg.m
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.86760 lb.ft11995 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.127713 lb.ft17657 kg.m @ 70.00 °
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 1.34.8.83 knots
Hallberg-Rassy 48 MkI's auxiliary engine
Engine(s)
1 inboard engine
Engine(s) power
110 HP
Fuel type
Diesel
Fuel tank capacity
211.3 gal800 liters
Hallberg-Rassy 48 MkI's accommodations and layout
Cockpit
Center cockpit
Cabin(s)
3
Berth(s) (min./max.)
6 / 10
Head(s)
2
Freshwater tank capacity
240.4 gal910 liters
Holding tank capacity
40.9 gal155 liters
Boiler capacity
14.5 gal55 liters
Hallberg-Rassy 48 MkI's saloon
Maximum headroom
6’ 6”1.99 m
Berth length
7’ 1”2.15 m
Hallberg-Rassy 48 MkI's fore cabin
Berth length
7’2.13 m
Hallberg-Rassy 48 MkI's aft cabin
Berth length
6’ 10”2.07 m
Berth width
4’ 11”1.5 m
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