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Marlow Hunter 33 Shoal draft

Sailboat specifications

The Marlow Hunter 33 is a 33’1” (10.08m) cruising sailboat designed by Glenn Henderson (United States). She is built since 2011 by Marlow Hunter (United States). The Shoal draft version is offered with a short keel fitted with large winglets. This configuration provides an interesting draft / low center of gravity / upwind performance trade-off. She has been awarded "2012 - Cruising World - Boat of the Year: Compact cruiser".

The Marlow Hunter 33 is as well listed, on, in Deep draft and Furling mainsail version (see all the versions compared).

Marlow Hunter 33's main features

Marlow Hunter 33
Shoal draft
Hull type
Cruising sailboat
Sailboat builder
Sailboat designer
United States
Hull and deck: GRP (glass reinforced polyester)
First built hull
Last built hull
Still in production
  • 2012: Cruising World - Boat of the Year: Compact cruiser
    Keel : wing keel
    Single helm wheel
    Single spade rudder
    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
    Standard public price ex. VAT (indicative only)

    Marlow Hunter 33's main dimensions

    Overall length
    33’ 6”10.21 m
    Hull length
    33’ 1”10.08 m
    Waterline length
    29’ 5”8.97 m
    Beam (width)
    11’ 6”3.51 m
    4’ 6”1.37 m
    Light displacement (MLC)
    12399 lb5624 kg
    Ballast weight
    3578 lb1623 kg

    Marlow Hunter 33's rig and sails

    Upwind sail area
    625 ft²58.1 m²
     iFore triangle height (from mast foot to fore stay top attachment)
    37’ 5”11.41 m
     iFore triangle base (from mast foot to bottom of forestay)
    10’ 10”3.3 m
     iMainsail hoist measurement (from tack to head)
    36’ 5”11.1 m
     iMainsail foot measurement (from tack to clew)
    13’ 10”4.22 m
    Rigging type
    Sloop Marconi (in-mast furling mainsail) fractional
    Mast configuration
    Deck stepped mast
    Rotating spars
    Number of levels of spreaders
    Spreaders angle
    Swept-back (Bergström)
    Spars construction
    Aluminum spars
    Standing rigging
    1x19 strand wire continuous

    Marlow Hunter 33'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.
    198 ft²/T18.37 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.
    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.
    29 %
    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.
    7.27 knots

    Marlow Hunter 33's auxiliary engine

    1 inboard engine
    Engine(s) power (min./max.)
    21 HP / 29 HP
    Fuel type
    Fuel tank capacity
    25.1 gal95 liters

    Marlow Hunter 33's accommodations and layout

    Closing aft cockpit with opening system
    Berth(s) (min./max.)
    4 / 6
    Freshwater tank capacity
    49.9 gal189 liters
    Holding tank capacity
    15.1 gal57 liters
    Boiler capacity
    5 gal19 liters
    Maximum headroom
    6’ 6”1.98 m
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