Detailed sailboat specifications and datasheets since 2015
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RM 1370 Fin keel

Sailboat specifications

The RM 1370 is a 44’11” (13.68m) fast cruising sailboat designed by Marc Lombard Yacht Design Group (France). She is built since 2017 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.

The RM 1370 is as well listed, on Boat-Specs.com, in Twin keel and Swing keel version (see all the versions compared).

Find out more about the RM 1370 on Boat-Spec's blog: New sailboats 2017 - France 1/2.

RM 1370's main features

Model
RM 1370
Version
Fin keel
Hull type
Monohull
Category
Offshore fast cruising sailboat
Sailboat builder
Sailboat designer
Sailboat range
Country
France
Construction
Hull and deck: plywood with glass/epoxy stratification
First built hull
2017
Last built hull
Still in production
Appendages
Keel : T-shaped keel (with bulb)
Helm
Twin helm wheels
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
A
Standard public price ex. VAT (indicative only)
About 
310 000
 (2020)

RM 1370's main dimensions

Overall length
48’ 5”14.74 m
Hull length
44’ 11”13.68 m
Waterline length
42’ 8”13 m
Beam (width)
14’ 10”4.5 m
Draft
8’2.45 m
Mast height from DWL
67’ 4”20.51 m
Light displacement (MLC)
21006 lb9528 kg
Maximum displacement (MLDC)
29183 lb13237 kg
Capacity
8177 lb3709 kg
Ballast weight
6504 lb2950 kg

RM 1370's rig and sails

Upwind sail area
1259 ft²117 m²
Downwind sail area
2470 ft²229.5 m²
Mainsail area
587 ft²54.5 m²
Genoa area
673 ft²62.5 m²
Staysail area
307 ft²28.5 m²
Asymmetric spinnaker area
1884 ft²175 m²
Rigging type
Cutter 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
Standing rigging
1x19 strand wire discontinuous

RM 1370'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.
280 ft²/T26.03 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.
550 ft²/T51.06 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.
123
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.
31 %
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.
8.75 knots

RM 1370's auxiliary engine

Engine(s)
1 inboard engine
Engine(s) power
75 HP
Fuel type
Diesel
Fuel tank capacity
92.5 gal350 liters

RM 1370's accommodations and layout

Cockpit
Open aft cockpit
Cabin(s)
3
Berth(s) (min./max.)
6 / 8
Head(s)
2
Freshwater tank capacity
158.5 gal600 liters
Holding tank capacity
29.1 gal110 liters
Maximum headroom
6’ 6”1.97 m
Head headroom
6’ 4”1.91 m

RM 1370's saloon

Maximum headroom
6’ 4”1.91 m
Saloon table length
4’ 1”1.25 m
Saloon table width
2’ 5”0.74 m
Berth length
6’ 7”2 m
Chart table
3’ 2”0.99 m x 1’ 10”0.56 m
Berth width
2’ 1”0.65 m

RM 1370's fore cabin

Maximum headroom
6’ 4”1.92 m
Berth length
6’ 7”2 m
Berth width
5’ 1”1.56 m

RM 1370's aft cabin

Maximum headroom
7’2.13 m
Berth length
6’ 7”2 m
Berth width
4’ 6”1.38 m
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