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Sailboat specifications and datasheets

Etap 23iL lifting keel

The Etap 23iL, here in "lifting keel" version, is a 22’6” monohull sailboat designed by Jac De Ridder. She was built by Etap (Belgium) and made of sandwich foam / fiberglass / polyester. This sailboat was produced between 1995 and 1999 with 110 hulls completed.
Etap 23iL Etap 23iL sailplanEtap 23iL layout
Etap 23iL's   Main Features
Model Etap 23iL
Version Lifting keel
Type of hull Monohull
Category Cruising monohull
Cockpit Closed aft cockpit
Shipyard
Designer Jac De Ridder
Construction Hull and deck:
sandwich foam / fiberglass / polyester
First built hull 1995
Last built hull 1999
Number of hulls built 110
Appendages Keel (lifting) :
Keel retractable
Helm 1 tiller
Rudder 1 transom hung rudder
Unsinkable Yes
Trailerable Yes
French navigation category 3
Standard public price ex. VAT (indicative only) N/A
Etap 23iL's   Main dimensions
Length overall 25’ 6”
Hull length 22’ 6”
Waterline length 20’ 4”
Beam (width) 8’ 2”
Draft 4’ 10”
Draft when appendages up 2’ 4”
Mast height from DWL 34’ 1”
Light displacement 3417 lbs
Ballast weight 1036 lbs
Ballast type Cast iron
French customs tonnage 3.99 Tx
Etap 23iL's   Rig and sails
Upwind sail area 311 sq.ft
Downwind sail area 446 sq.ft
Mainsail area 151 sq.ft
Genoa area 160 sq.ft
Solent area 110 sq.ft
Jib area 62 sq.ft
Stormjib area 28 sq.ft
Asymetric spinnaker area 295 sq.ft
Rigging type Sloop Marconi 7/8
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire continuous
Number of levels of spreaders 1
Spreaders angle Swept-back
IiFore triangle height (from mast foot to fore stay attachment) 23’ 10”
JiFore triangle base (from mast foot to bottom of forestay) 8’ 1”
PiMainsail hoist measurement (from tack to head) 26’ 1”
EiMainsail foot measurement (from tack to clew) 9’
Etap 23iL's   Performances
HN (French rating) 7.5
IOR rating 16.5
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.
21.58
Downwind 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.
30.91
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.
184
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.
30 %
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.
6.04 knots
Etap 23iL's   Auxiliary engine
Engine(s) 1
Engine type Outboard engine
Engine (min/max) 6 HP / 9 HP
Fuel type Gas
Etap 23iL's   Accommodation
Cabin(s) 1
Berth(s) 4
Fresh water tank capacity 13.2 gal

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