The **Xp 55** is a 55’ (16.76m) racer-cruiser sailboat designed by *X-Yachts Design Group* (Denmark). She is built since 2013 by *X-Yachts* (Denmark). The *Deep draft* version features a deeper T-shaped keel to grant extra performance especially upwind. She has been awarded "*2019 - SAIL magazine - Best Large Monohull 51ft and Above*".

The**Xp 55** is as well listed, on Boat-Specs.com, in Standard version (see all the versions compared).

The

- Model
- Xp 55
- Version
- Deep draft
- Hull type
- Monohull
- Category
- Offshore racer-cruiser sailboat
- Sailboat builder
- Sailboat designer
- Sailboat range
- Country
- Denmark
- Construction
- Fiberglass reinforced epoxy:

Sandwich Core-Cell fiberglass epoxy - First built hull
- 2013
- Last built hull
- Still in production
- Award(s)
- 2019:
*SAIL magazine - Best Large Monohull 51ft and Above*

- 2019:
- Appendages
- Keel : T-shaped keel (with bulb)
- Helm
- Twin helm wheels
- Rudder
- Single spade rudder
- Unsinkable
- No
- Trailerable
- No
- Standard public price ex. VAT (indicative only)
- About775 000 €(2020)

- Hull length
- 55’16.76 m
- Waterline length
- 48’ 10”14.87 m
- Beam (width)
- 15’ 7”4.77 m
- Draft
- 10’ 6”3.2 m
- Light displacement (M
_{LC}) - 37038 lb16800 kg
- Ballast weight
- 13889 lb6300 kg
- Ballast type
- Cast iron fin with lead bulb

- Upwind sail area
- 1877 ft²174.4 m²
- Downwind sail area
- 3655 ft²339.6 m²
- Mainsail area
- 1072 ft²99.6 m²
- Genoa area
- 805 ft²74.8 m²
- Asymmetric spinnaker area
- 2583 ft²240 m²
- Rigging type
- Sloop Marconi 9/10
- Mast configuration
- Keel stepped mast
- Rotating spars
- No
- Number of levels of spreaders
- 3
- Spreaders angle
- Swept-back
- Spars construction
- Aluminum spars (carbon boom as an option)
- Standing rigging
- Single-strand (ROD)

- 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. - 286 ft²/T26.59 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. - 557 ft²/T51.77 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. - 145
- 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. - 38 %
- 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. - 9.36 knots

- Engine(s)
- 1 inboard engine
- Engine(s) power
- 110 HP
- Fuel type
- Diesel
- Fuel tank capacity
- 105.7 gal400 liters

- Cockpit
- Open aft cockpit
- Cabin(s)
- 4
- Berth(s) (min./max.)
- 7 / 9
- Head(s) (min./max.)
- 2 / 3
- Freshwater tank capacity
- 145.3 gal550 liters

Sailboats

First built hull

Hull length

2011

43’ 7”13.29 m

1988

52’ 6”16 m

2007

53’ 7”16.35 m

2013

55’16.76 m

2002

55’ 5”16.9 m

2004

50’15.24 m

2012

49’ 2”14.99 m

2016

63’19.19 m

2016

54’ 10”16.7 m

2009

61’ 11”18.86 m

2009

61’ 11”18.86 m

2017

50’ 11”15.51 m

2017

51’ 8”15.75 m

2018

55’ 1”16.8 m

2018

47’ 7”14.5 m