Oyster Lightwave 395's main features
Oyster Lightwave 395
Hull and deck: GRP (glass reinforced polyester)
Number of hulls built
First built hull
Last built hull
Keel : fin without bulb
Single helm wheel
Single spade rudder
Standard public price ex. VAT (indicative only)
Oyster Lightwave 395's main dimensions
39’ 6”12.05 m
33’ 10”10.3 m
11’ 10”3.6 m
6’ 11”2.1 m
Light displacement (MLC)
11001 lb4990 kg
Oyster Lightwave 395's rig and sails
Upwind sail area
732 ft²68 m²
I iFore triangle height (from mast foot to fore stay top attachment)
52’ 2”15.9 m
J iFore triangle base (from mast foot to bottom of forestay)
15’ 4”4.65 m
P iMainsail hoist measurement (from tack to head)
45’ 4”13.8 m
E iMainsail foot measurement (from tack to clew)
14’ 10”4.5 m
Sloop Marconi masthead
Number of levels of spreaders
1x19 strand wire
Oyster Lightwave 395'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.
251 ft²/T23.29 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.
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.
Oyster Lightwave 395's auxiliary engine
1 inboard engine
Oyster Lightwave 395's accommodations and layout
Closed aft cockpit
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