The
Impression 40.1 is a 37’8” (11.48m) cruising sailboat designed by
Humphreys Yacht Design (United Kingdom). She is built since 2019 by
Elan Yachts (Slovenia). The
Furling mainsail version is proposed with an in-mast furling system to ease the sailing.
The
Impression 40.1 is as well listed, on Boat-Specs.com, in
Standard and
Shoal draft version (
see all the versions compared).
Impression 40.1's main features
Model
Impression 40.1
Version
Furling mainsail
Hull type
Monohull
Category
Cruising sailboat
Sailboat builder
Sailboat designer
Sailboat range
Country
Slovenia
Construction
GRP (glass reinforced polyester):
Sandwich PVC fiberglass polyester
First built hull
2019
Last built hull
Still in production
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 < 0,5mA
Standard public price ex. VAT (indicative only)
Impression 40.1's main dimensions
Overall length
39’ 4”11.99 m
Hull length
37’ 8”11.48 m
Waterline length
32’ 10”10 m
Beam (width)
12’ 10”3.91 m
Draft
5’ 11”1.8 m
Mast height from DWL
57’ 8”17.6 m
Light displacement (MLC)
18448 lb8368 kg
Ballast weight
5611 lb2545 kg
Ballast type
Cast iron
Impression 40.1's rig and sails
Upwind sail area
750 ft²69.69 m²
Downwind sail area
1395 ft²129.59 m²
Mainsail area
340 ft²31.59 m²
Genoa area
410 ft²38.1 m²
Asymmetric spinnaker area
1055 ft²98 m²
I
iFore triangle height (from mast foot to fore stay top attachment)45’ 10”13.96 m
J
iFore triangle base (from mast foot to bottom of forestay)12’ 10”3.9 m
P
iMainsail hoist measurement (from tack to head)42’ 8”13 m
E
iMainsail foot measurement (from tack to clew)15’ 11”4.86 m
Rigging type
Sloop Marconi (in-mast furling mainsail) 9/10
Mast configuration
Deck stepped mast
Rotating spars
No
Number of levels of spreaders
2
Spreaders angle
Swept-back
Spars construction
Aluminum spars
Standing rigging
1x19 strand wire continuous
Impression 40.1'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.182 ft²/T16.91 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.338 ft²/T31.44 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.237
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.30 %
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 1.34.7.68 knots
Impression 40.1's auxiliary engine
Engine(s)
1 inboard engine
Engine(s) power (min./max.)
29 HP / 50 HP
Fuel type
Diesel
Fuel tank capacity
38.6 gal146 liters
Impression 40.1's accommodations and layout
Cockpit
Closing aft cockpit with opening system
Cabin(s) (min./max.)
2 / 3
Berth(s) (min./max.)
4 / 8
Head(s) (min./max.)
1 / 2
Freshwater tank capacity
63.4 gal240 liters
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