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Sailboat specifications and datasheets

Hallberg-Rassy 48 MkI

The Hallberg-Rassy 48 MkI is a 49’2” monohull sailboat designed by German Frers. She was built by Hallberg-Rassy (Sweden) and made of sandwich fiberglass / polyester. This sailboat was produced between 2004 and 2013 with 69 hulls completed.
Hallberg-Rassy 48 MkI Hallberg-Rassy 48 MkI sailplanHallberg-Rassy 48 MkI layoutHallberg-Rassy 48 MkI layoutHallberg-Rassy 48 MkI sailingHallberg-Rassy 48 MkI sailingHallberg-Rassy 48 MkI sailingHallberg-Rassy 48 MkI cockpitHallberg-Rassy 48 MkI accommodationsHallberg-Rassy 48 MkI accommodationsHallberg-Rassy 48 MkI accommodationsHallberg-Rassy 48 MkI accommodationsHallberg-Rassy 48 MkI accommodationsHallberg-Rassy 48 MkI accommodationsHallberg-Rassy 48 MkI accommodationsHallberg-Rassy 48 MkI detail
Hallberg-Rassy 48 MkI's   Main Features
Model Hallberg-Rassy 48 MkI
Type of hull Monohull
Category Offshore cruising sailboat
Shipyard
Designer German Frers
Construction Hull and deck:
sandwich fiberglass / polyester
First built hull 2004
Last built hull 2013
Number of hulls built 69
Appendages Keel :
Fin with bulb
Helm 1 wheel
Rudder 1 semi-spade rudder
Cockpit Central cockpit
Unsinkable No
Trailerable No
EC certification A
Standard public price ex. VAT (indicative only) N/A
Hallberg-Rassy 48 MkI's   Main dimensions
Hull length 49’ 2”
Waterline length 43’ 6”
Beam (width) 14’ 10”
Draft 7’ 8”
Mast height from DWL 71’ 5”
Light displacement 40786 lbs
Ballast weight 17086 lbs
Ballast type Lead
Hallberg-Rassy 48 MkI's   Rig and sails
Upwind sail area 1495 sq.ft
Rigging type Sloop Marconi masthead
Rotating spars No
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Number of levels of spreaders 3
Spreaders angle Swept-back
Hallberg-Rassy 48 MkI'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.
19.86
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.
225
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 %
Righting moment @ 1°iThe righting moment is a moment (torque) that tends to restore a boat to its previous position after a rotational displacement. 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 at this angle.
3378 lbs.ft
Righting moment @ 30°iThe righting moment is a moment (torque) that tends to restore a boat to its previous position after a rotational displacement. 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 at this angle.
86760 lbs.ft
Maximum righting momentiThe righting moment is a moment (torque) that tends to restore a boat to its previous position after a rotational displacement. 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 at this angle.
127713 lbs.ft @ 70.00 °
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.
8.83 knots
Hallberg-Rassy 48 MkI's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 110 HP
Fuel type Diesel
Fuel tank capacity 211.3 gal
Hallberg-Rassy 48 MkI's   Accommodation
Cabin(s) 3
Berth(s) (min/max) 6 / 10
Head(s) 2
Fresh water tank capacity 240.4 gal
Water heater capacity 14.5 gal
Holding tank capacity 40.9 gal
Hallberg-Rassy 48 MkI's   Saloon
Maximum headroom 6’ 6”
Berth length 7’ 1”
Hallberg-Rassy 48 MkI's   Fore cabin
Berth length 7’
Hallberg-Rassy 48 MkI's   Aft cabin
Berth length 6’ 10”
Berth width 4’ 11”

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