Sailboat specifications and datasheets

Moody 45 DS shoal draft

The Moody 45 DS, here in "shoal draft" version, is a 45’ monohull sailboat designed by Bill Dixon. She was built by Moody (United Kingdom) and made of sandwich balsa / fiberglass / polyester. The production started in 2008 .

The Moody 45 DS is as well listed, on, in version Deep draft.

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Moody 45 DS's   Main Features
Model Moody 45 DS
Version Shoal draft
Type of hull Monohull
Category Offshore deck saloon cruising sailboat
Designer Bill Dixon
Construction Hull and deck:
sandwich balsa / fiberglass / polyester
First built hull 2008
Last built hull Still in production
Appendages Keel :
L-shaped keel (with bulb)
Helm 2 wheels
Rudder 1 spade rudder
Cockpit Open aft cockpit
Unsinkable No
Trailerable No
EC certification A
Standard public price ex. VAT (indicative only) About
424 000
Moody 45 DS's   Main dimensions
Hull length 45’
Waterline length 42’ 5”
Beam (width) 15’
Draft 5’ 5”
Mast height from DWL 71’ 6”
Light displacement 30865 lbs
Ballast weight 9480 lbs
Ballast type Cast iron
Moody 45 DS's   Rig and sails
Upwind sail area 1055 sq.ft
Mainsail area 667 sq.ft
Genoa area 388 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 2
Spreaders angle Swept-back
IiFore triangle height (from mast foot to fore stay attachment) 64’ 4”
JiFore triangle base (from mast foot to bottom of forestay) 16’ 8”
PiMainsail hoist measurement (from tack to head) 60’ 2”
EiMainsail foot measurement (from tack to clew) 19’ 8”
Moody 45 DS'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.
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.
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.
31 %
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.
8.73 knots
Moody 45 DS's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 107 HP
Fuel type Diesel
Fuel tank capacity 169.1 gal
Moody 45 DS's   Accommodation
Cabin(s) (min/max) 2 / 3
Berth(s) (min/max) 4 / 8
Head(s) 2
Fresh water tank capacity 211.3 gal
Water heater capacity 10.6 gal
Holding tank capacity 26.4 gal
Fridge/ice-box capacity 37 gal

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