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Sailboat specifications and datasheets

Hallberg-Rassy 412

The Hallberg-Rassy 412 is a 41’5” monohull sailboat designed by German Frers. She was built by Hallberg-Rassy (Sweden) and made of sandwich fiberglass / polyester. The production started in 2012 .
Hallberg-Rassy 412 Hallberg-Rassy 412 sailplanHallberg-Rassy 412 layoutHallberg-Rassy 412 sailingHallberg-Rassy 412 sailingHallberg-Rassy 412 sailingHallberg-Rassy 412 sailingHallberg-Rassy 412 accommodationsHallberg-Rassy 412 accommodationsHallberg-Rassy 412 accommodationsHallberg-Rassy 412 accommodationsHallberg-Rassy 412 accommodations
Hallberg-Rassy 412's   Main Features
Model Hallberg-Rassy 412
Type of hull Monohull
Category Offshore cruising sailboat
Shipyard
Designer German Frers
Construction Hull and deck:
sandwich fiberglass / polyester
First built hull 2012
Last built hull Still in production
Appendages Keel :
Fin with bulb
Helm 1 wheel
Rudder 1 spade rudder
Cockpit Open aft cockpit with closing system
Unsinkable No
Trailerable No
EC certification A
Standard public price ex. VAT (indicative only) About
387 000
(2017)
Hallberg-Rassy 412's   Main dimensions
Hull length 41’ 5”
Waterline length 37’ 8”
Beam (width) 13’ 6”
Draft 6’ 6”
Mast height from DWL 64’ 6”
Light displacement 24471 lbs
Ballast weight 8818 lbs
Ballast type Lead
Hallberg-Rassy 412's   Rig and sails
Upwind sail area 969 sq.ft
Downwind sail area 1409 sq.ft
Rigging type Sloop Marconi 9/10
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 412'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.
18.09
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.
26.31
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.
207
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.
36 %
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.
2119 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.
53459 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.
71093 lbs.ft @ 55.90 °
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.
8.23 knots
Hallberg-Rassy 412's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 75 HP
Fuel type Diesel
Fuel tank capacity 89.8 gal
Hallberg-Rassy 412's   Accommodation
Cabin(s) (min/max) 2 / 3
Berth(s) (min/max) 4 / 8
Fresh water tank capacity 140 gal
Water heater capacity 10.6 gal
Holding tank capacity 37 gal
Maximum headroom 6’ 5”
Hallberg-Rassy 412's   Saloon
Maximum headroom 6’ 5”
Berth length 6’ 7”
Hallberg-Rassy 412's   Fore cabin
Berth length 7’
Berth width (head/feet) 6’ 10”
2’ 2”
Hallberg-Rassy 412's   Aft cabin
Berth length 6’ 8”
Berth width (head/feet) 5’
3’ 11”

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