Detailed sailboat specifications and datasheets since 2015
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RM 970 Fin keel

Sailboat specifications

The RM 970 is a 31’8” (9.65m) fast cruising sailboat designed by Marc Lombard Yacht Design Group (France). She is built since 2016 by Fora Marine (France) and RM yachts (France). The Fin keel version displays a T-shaped keel, synonym of low center of gravity and reduced weight. She has been awarded "2017 - European Yacht of the Year: Family Cruiser".

The RM 970 is as well listed, on Boat-Specs.com, in Twin keel version (see all the versions compared).

Find out more about the RM 970 on Boat-Spec's blog: European Yacht of the Year 2017.

RM 970's main features

Model
RM 970
Version
Fin keel
Hull type
Monohull
Category
Fast cruising sailboat
Sailboat builder
Sailboat designer
Sailboat range
Country
France
Construction
Hull and deck: plywood with glass/epoxy stratification
First built hull
2016
Last built hull
Still in production
Award(s)
  • 2017: European Yacht of the Year: Family Cruiser
    Appendages
    Keel : T-shaped keel (with bulb)
    Helm
    Single tiller (helm wheel in option)
    Rudder
    Single spade rudder (twin as option)
    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 < 0,5m
    B
    Standard public price ex. VAT (indicative only)
    About 
    132 000
     (2020)

    RM 970's main dimensions

    Overall length
    34’ 8”10.57 m
    Hull length
    31’ 8”9.65 m
    Waterline length
    29’ 5”8.95 m
    Beam (width)
    12’ 1”3.7 m
    Draft
    6’ 11”2.1 m
    Mast height from DWL
    52’ 8”16.06 m
    Light displacement (MLC)
    8598 lb3900 kg
    Maximum displacement (MLDC)
    11354 lb5150 kg
    Capacity
    2756 lb1250 kg
    Ballast weight
    2723 lb1235 kg

    RM 970's rig and sails

    Upwind sail area
    658 ft²61.1 m²
    Downwind sail area
    1381 ft²128.3 m²
    Mainsail area
    358 ft²33.3 m²
    Genoa area
    299 ft²27.8 m²
    Staysail area
    169 ft²15.7 m²
    Asymmetric spinnaker area
    1023 ft²95 m²
    Rigging type
    Cat boat Marconi 9/10
    Mast configuration
    Deck stepped mast
    Rotating spars
    No
    Number of levels of spreaders
    2
    Spreaders angle
    Swept-back
    Spars construction
    Aluminum spars (carbon fiber spars as an option)
    Standing rigging
    1x19 strand wire discontinuous

    RM 970'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.
    265 ft²/T24.66 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.
    557 ft²/T51.78 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.
    154
    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.
    32 %
    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.
    7.26 knots

    RM 970's auxiliary engine

    Engine(s)
    1 inboard engine
    Engine(s) power
    20 HP
    Fuel type
    Diesel
    Fuel tank capacity
    17.2 gal65 liters

    RM 970's accommodations and layout

    Cockpit
    Open aft cockpit
    Cabin(s)
    2
    Berth(s) (min./max.)
    4 / 6
    Head(s)
    1
    Freshwater tank capacity
    37 gal140 liters
    Holding tank capacity
    9.2 gal35 liters
    Have you spotted incorrect data?  You can report it in the forum or contact the webmaster

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