Oyster 1225
Sailboat specifications
The Oyster 1225 is a 118’1” (36m) cruising sailboat designed by Humphreys Yacht Design (United Kingdom). She is built since 2019 by Oyster (United Kingdom).
Oyster 1225's main features
- Model
- Oyster 1225
- Hull type
- Monohull
- Category
- Offshore cruising sailboat
- Sailboat builder
- Sailboat designer
- Country
- United Kingdom
- Construction
- Hull and deck: GRP (glass reinforced polyester)
- First built hull
- 2019
- Last built hull
- Still in production
- Appendages
- Keel : L-shaped keel (with bulb)
- Helm
- Twin helm wheels
- Rudder
- Twin spade rudders
- Unsinkable
- No
- Trailerable
- No
- Standard public price ex. VAT (indicative only)
- N/A €
Oyster 1225's main dimensions
- Overall length
- 122’ 11”37.45 m
- Hull length
- 118’ 1”36 m
- Waterline length
- 108’ 2”32.98 m
- Beam (width)
- 27’ 5”8.35 m
- Draft
- 13’ 1”4 m
- Mast height from DWL
- 171’ 6”52.27 m
- Light displacement (MLC)
- 350535 lb159000 kg
Oyster 1225's rig and sails
- Upwind sail area
- 7459 ft²693 m²
- Rigging type
- Sloop Marconi 9/10
- Mast configuration
- Keel stepped mast
- Rotating spars
- No
- Number of levels of spreaders
- 4
- Spreaders angle
- Swept-back
Oyster 1225'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 25 it indicates a fast sailboat. - 254 ft²/T23.61 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. - 126
- Critical 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. - 13.94 knots
Oyster 1225's auxiliary engine
- Engine(s)
- 1 inboard engine
- Engine(s) power
- 500 HP
- Fuel type
- Diesel
- Fuel tank capacity
- 3645.6 gal13800 liters
Oyster 1225's accommodations and layout
- Cockpit
- Twin cockpit (center and closed aft)
- Cabin(s)
- 8
- Berth(s)
- 16
- Head(s)
- 8
- Freshwater tank capacity
- 1215.2 gal4600 liters
Oyster 1225 interior and accommodations - - 8/14
Picture extracted from the commercial documentation © Oyster
Picture extracted from the commercial documentation © Oyster
Oyster 1225 interior and accommodations - - 9/14
Picture extracted from the commercial documentation © Oyster
Picture extracted from the commercial documentation © Oyster
Oyster 1225 interior and accommodations - - 10/14
Picture extracted from the commercial documentation © Oyster
Picture extracted from the commercial documentation © Oyster
Oyster 1225 interior and accommodations - - 11/14
Picture extracted from the commercial documentation © Oyster
Picture extracted from the commercial documentation © Oyster
Oyster 1225 interior and accommodations - - 12/14
Picture extracted from the commercial documentation © Oyster
Picture extracted from the commercial documentation © Oyster
Oyster 1225 interior and accommodations - - 13/14
Picture extracted from the commercial documentation © Oyster
Picture extracted from the commercial documentation © Oyster
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