Moody 45 Aft Deep draft

Sailboat specifications

The Moody 45 Aft is a 45’ (13.72m) cruising sailboat designed by Dixon Yacht Design (United Kingdom). She was built between 2010 and 2019 by Moody (United Kingdom). The Deep draft version offers a deeper L-shaped keel bringing extra performance especially upwind.

The Moody 45 Aft is as well listed, on Boat-Specs.com, in Shoal draft version (see all the versions compared).

Moody 45 Aft's main features

Model: Moody 45 Aft
Version: Deep draft
Hull type: Monohull
Category: Offshore cruising sailboat
Sailboat builder: Moody
Sailboat designer: Dixon Yacht Design
Country: United Kingdom
Construction: GRP (glass reinforced polyester):
- Hull: Sandwich balsa fiberglass polyester
- Deck: Sandwich balsa fiberglass polyester
First built hull: 2010
Last built hull: 2019
Appendages: Keel : L-shaped keel (with bulb)
Helm: Twin helm wheels
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 €

Moody 45 Aft's main dimensions

Overall length: 46’14.03 m
Hull length: 45’13.72 m
Waterline length: 40’12.2 m
Beam (width): 13’ 10”4.2 m
Draft: 7’ 2”2.2 m
Light displacement (M_LC): 26896 lb12200 kg
Ballast weight: 7385 lb3350 kg
Ballast type: Cast iron

Moody 45 Aft's rig and sails

Upwind sail area: 1206 ft²112 m²
Downwind sail area: 1927 ft²179 m²
Mainsail area: 560 ft²52 m²
Genoa area: 646 ft²60 m²
Jib area: 409 ft²38 m²
Asymmetric spinnaker area: 1367 ft²127 m²
I iFore triangle height (from mast foot to fore stay top attachment): 55’ 6”16.92 m
J iFore triangle base (from mast foot to bottom of forestay): 16’ 2”4.95 m
P iMainsail hoist measurement (from tack to head): 54’ 5”16.59 m
E iMainsail foot measurement (from tack to clew): 19’ 6”5.95 m
Rigging type: Sloop Marconi 9/10
Mast configuration: Deck stepped mast
Rotating spars: No
Number of levels of spreaders: 2
Spreaders angle: Swept-back
Spars construction: Aluminum spars

Moody 45 Aft'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.: 227 ft²/T21.13 m²/T
Downwind 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.: 364 ft²/T33.78 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.: 190
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.: 27 %
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.: 8.48 knots