RM 1070 Information, Review, Specs

Sailing Performance & Handling

The RM 1070 is celebrated for its stiffness and "nervous" responsiveness, a direct result of its light-displacement plywood-epoxy hull, which is significantly more rigid than standard GRP. On the water, the Marc Lombard design showcases a pedigree rooted in offshore racing. The hull features a double-chine arrangement; the lower chine provides early stability, while the upper chine increases the waterline beam as the boat heels, preventing excessive leaning and maintaining tracking.

Handling is further defined by the choice of underwater appendages. The RM 1070 was offered with three distinct configurations: a twin-keel with a single deep rudder (optimized for drying out in tidal harbors), a single deep keel with twin rudders (optimized for pure speed and control at high heel angles), or a lifting keel version for maximum versatility. In an editorial review by Yachting Monthly, testers noted that the boat feels exceptionally balanced on the helm, even when pressed, and is capable of sustained planing speeds in offshore conditions—a rare feat for a fully-fitted cruising yacht of this size. The cutter rig option allows for a flexible sail plan, enabling the use of a staysail for better balance in heavy weather.

Interior Comfort & Variations

The interior of the RM 1070 departs from the traditional "dark cave" aesthetic of older cruising sailboats, opting instead for a bright, loft-like atmosphere. The defining feature of the cabin is the 180-degree panoramic coachroof window, which allows the crew to monitor the horizon while seated at the saloon table or the forward-facing navigation station. This design choice provides an abundance of natural light and enhances the sense of space.

The layout typically features two or three cabins. The owner’s cabin forward benefits from the wide beam carried forward, while the aft section is split between a double guest cabin and a large technical locker/storage area (in the two-cabin version). Materials are modern, utilizing white-lacquered surfaces contrasted with warm wood accents, which RM Yachts claims are easier to maintain and contribute to the boat’s light-displacement goals. In the later RM 1070+ variant, the yard introduced a "plus" evolution that refined the transom design and added more contemporary interior finishes, though it retained the same high-performance hull.

Known Issues & Buyer’s Checklist

While the plywood-epoxy construction is incredibly robust and immune to osmosis, it requires a specific maintenance mindset. Prospective buyers should focus on the following technical areas:

• Epoxy Skin Integrity: The primary defense of the plywood hull is the external epoxy and glass fiber coating. Any deep gouges or impact damage that penetrates through to the wood must be sealed immediately to prevent moisture ingress into the plywood core.
• Keel Attachment Points: On twin-keel models, the leverage exerted on the hull during grounding or drying out is substantial. Inspectors should check the internal floors and reinforcements around the keel bolts for any signs of stress cracking or movement.
• Window Seals: The large panoramic acrylic windows are a hallmark of the model but are subject to significant thermal expansion. Check for signs of leaking or "crazing" in the sealant along the lower edge of the coachroof.
• Rudder Bearings: Because the RM 1070 is often sailed hard, the rudder bearings (especially on the twin-rudder version) can develop play over time. A "clunking" sensation in the helm at anchor often indicates it is time for a bearing replacement.

Community & Resources

Owners of the RM 1070 are supported by a passionate community, largely centered in France and the UK. The most prominent resource is the RM For’Oum, a technical association of RM owners that provides detailed documentation on maintenance and modifications specific to the plywood-epoxy build. Technical support is also frequently coordinated through the Grand Large Services network, the dedicated after-sales arm of the Grand Large Yachting group, which ensures that RM owners have access to factory-spec parts and expert repair advice.

The Verdict

The RM 1070 is a sophisticated, niche vessel that appeals to the "thinking sailor"—someone who prioritizes structural stiffness, light-air performance, and a modern aesthetic over the mass-produced comfort of GRP hulls.

Pros:

• Exceptional Rigidity: The monocoque plywood-epoxy build offers a silent, stiff ride that GRP cannot match.
• Visibility: The panoramic windows provide unparalleled situational awareness from the interior.
• Versatility: Multiple keel options allow the boat to be tailored for either tidal exploring or offshore racing.

Cons:

• Repair Complexity: While repairs are straightforward for a specialist, many general GRP yards may lack experience with structural epoxy-plywood work.
• Resale Market: As a premium French brand, the RM 1070 commands a higher price point than mainstream competitors, which can narrow the pool of potential buyers.