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Image of RM 1380

RM 1380

Performance Cruiser Built by RM

Boat highlights

RM 1380 is currently estimated in the Decent band with an SBP score of 97.

Length overall

43.6 ft

Primary sail area

1,184 ft²

Displacement

21,605 lbs

Performance band: Decent GPH rating: 569
97
SBP score
Decent band

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Performance Analysis

Detailed performance metrics and polar diagram for RM 1380.

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
97
ORC GPH
569
Average Speed (GPH)
6.3 kn
Yardstick
77.8
Sail Carry Number
4.9
Planing Potential
1.0 (medium)
Hull Speed
8.1 kn

Speed Estimates

Wind Speed (kn)Beat VMG (kn)Run VMG (kn)
63.63.8
84.44.8
105.05.8
125.56.5
145.87.0
165.97.4
206.18.4

Polar Diagram

Wind Speed (kn)

Key Specifications

Explore the hull dimensions and sail plan for RM 1380.

Dimensions

Length over all 43.64 ft
Length at Waterline 36.35 ft
Hull Speed 8.1 kn
Beam 14.76 ft
Draft 10.99 ft
Displacement 21,605 lbs

Sails

Main Sail Area 592.01 ft²
Foresail Area 592.01 ft²
Upwind Sail Area 1184.03 ft²
Spinnaker/Gennaker Area 1614.59 ft²

Construction ratios

Sail area-to-displacement (SA/D)
24.4
Capsize screening (CSF)
2.10
Comfort ratio (CR)
23.8

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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