Detailed sailboat specifications and datasheets since 2015
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Marlow Hunter 18

Sailboat specifications

The Marlow Hunter 18 is a 18’4” (5.59m) dayboat designed by Glenn Henderson (United States). She is built since 2011 by Marlow Hunter (United States).

Marlow Hunter 18's main features

Model
Marlow Hunter 18
Hull type
Monohull
Category
Coastal dayboat
Sailboat builder
Sailboat designer
Country
United States
Construction
Hull and deck: GRP (glass reinforced polyester)
First built hull
2011
Last built hull
Still in production
Appendages
Centerboard : pivoting centerboard
Helm
Single tiller
Rudder
Single transom hung rudder
Unsinkable
Yes
Trailerable
Yes
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 < 0,5m
D
Standard public price ex. VAT (indicative only)
N/A

Marlow Hunter 18's main dimensions

Hull length
18’ 4”5.59 m
Waterline length
16’ 6”5.03 m
Beam (width)
7’ 2”2.18 m
Draft
4’ 4”1.32 m
Draft when appendages up
0’ 6”0.15 m
Mast height from DWL
24’ 6”7.47 m
Light displacement (MLC)
836 lb379 kg
Maximum displacement (MLDC)
1770 lb803 kg
Capacity
935 lb424 kg

Marlow Hunter 18's rig and sails

Upwind sail area
170 ft²15.79 m²
Downwind sail area
381 ft²35.39 m²
Rigging type
Sloop Marconi fractional
Mast configuration
Deck stepped mast
Rotating spars
No
Number of levels of spreaders
1
Spreaders angle
Swept-back
Spars construction
Aluminum spars
Standing rigging
1x19 strand wire continuous

Marlow Hunter 18'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.
325 ft²/T30.15 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.
727 ft²/T67.58 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.
84
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.
5.44 knots

Marlow Hunter 18's auxiliary engine

Engine(s)
1 outboard engine

Marlow Hunter 18's accommodations and layout

Cockpit
Open aft cockpit
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