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Image of RM 970+

RM 970+

Performance Cruiser Built by RM

Boat highlights

RM 970+ is currently estimated in the Good band with an SBP score of 108.

Length overall

31.8 ft

Primary sail area

678 ft²

Displacement

9,039 lbs

Performance band: Good GPH rating: 630
108
SBP score
Good band

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Performance Analysis

Detailed performance metrics and polar diagram for RM 970+.

Methodology note: SBP scores, polar diagrams, hull-speed values, and derived ratios are estimates. Use them for comparison and planning support—not as a substitute for manufacturer specifications, measured sea trials, rating certificates, professional weather routing, or safety margins. Review how we rate boats.

Performance Metrics

SBP Score
108
ORC GPH
630
Average Speed (GPH)
5.7 kn
Yardstick
92.2
Sail Carry Number
5.0
Planing Potential
1.1 (high)
Hull Speed
6.9 kn

Speed Estimates

Wind Speed (kn)Beat VMG (kn)Run VMG (kn)
63.33.8
84.04.7
104.65.6
124.96.2
145.16.5
165.27.0
205.27.8

Polar Diagram

Wind Speed (kn)

Key Specifications

Explore the hull dimensions and sail plan for RM 970+.

Dimensions

Length over all 31.82 ft
Length at Waterline 26.51 ft
Hull Speed 6.9 kn
Beam 12.14 ft
Draft 6.50 ft
Displacement 9,039 lbs

Sails

Main Sail Area 355.21 ft²
Foresail Area 322.92 ft²
Upwind Sail Area 678.13 ft²
Spinnaker/Gennaker Area 1130.21 ft²

Construction ratios

Sail area-to-displacement (SA/D)
25.0
Capsize screening (CSF)
2.31
Comfort ratio (CR)
17.7

Discussion

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Data sources and methodology

Published specifications are kept separate from calculated ratios and estimated performance. SBP and speed outputs are model-based estimates, not owner ratings or certified handicaps.

Specifications
verified
Ratios
derived
Performance
estimated

Last checked: 27 Aug 2026. Source: RM official website. Read the SBP methodology.

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