RIBs

What RIBs are and why they matter aboard a sailing boat

Rigid inflatable boats (RIBs) combine a rigid hull with inflatable tubes or sponsons around the gunwales. That construction gives them a mix of sea‑keeping, buoyancy and low weight that makes RIBs popular as tenders, shore‑boats, crew transfers, chase boats and short‑range day craft. On a sailing boat a RIB can be a practical extension of the vessel — for ferrying people and stores, retrieving a drifting dinghy, acting as a safety/rescue boat when required, or as a fast runner to get ashore when anchorages are shallow or crowded.

What this category includes — and what it doesn't

This category covers compact hard‑hulled boats fitted with inflatable tubes: console and centre‑console RIBs, small tender RIBs carried on davits or in lazarettes, and larger RIBs used as chase or shore boats. It includes variants with soft or rigid floors, keel shapes from deep V to shallow planing hulls, and common propulsion options such as outboards and small inboards.

Excluded are fully inflatable dinghies without a solid hull, traditional rigid boats with no inflatable sponsons, personal watercraft, and specialist commercial rescue boats designed to different regulations and operational profiles.

Where and how RIBs are normally used

• As a tender for short transfers between boat and shore in sheltered harbours and exposed anchorages.
• For boarding, provisioning and crew movements when a yacht is at anchor or at a mooring.
• As a utility craft for ferrying gear, lines, and fenders while short on time or crew.
• As a fast chase or support boat when rounding up lines, inspecting nearby vessels, or responding to man‑overboard incidents.
• For recreational use — day cruising, fishing and exploring local waters where a larger boat can't go.

Main product types and configurations

RIBs vary by hull type, floor, deck layout and propulsion. The principal groupings are:

• Small tender RIBs (typically under 3.5–4 metres): basic layouts for shore trips, light loads and compact stowage. Often have bench seating and minimal consoles.
• Centre‑console RIBs: single helm console amidships with walkaround access; suited to active use, steering while underway and carrying crew and equipment.
• Twin‑console or cabin RIBs: offer more shelter and storage, useful for longer runs, worse weather or family outings.
• Solid‑floor versus roll‑up floor: solid or inflatable floors affect stiffness, load capacity and stowage. Rigid floors are better for heavier loads and planing performance; roll‑up floors save space.
• Outboard‑driven RIBs: common for tenders and day RIBs; simple to maintain ashore and easy to remove for storage.
• Inboard or jet‑driven RIBs: used where shallow‑water operations or specific handling characteristics are required, but they add complexity and weight.

Key terminology explained

• Sponson / tube — the inflatable collar around the hull giving buoyancy and lateral stability.
• Transom — the flat stern area where an outboard or other propulsion is mounted.
• Planing hull — a hull designed to rise and skim the water at speed; common on RIBs for rapid transfer.
• Displacement mode — slower, hull‑borne movement typically at low speed and heavy load; relevant for heavier RIBs or in rough seas.

Who needs a RIB?

RIBs are valuable to sailors who prioritise fast, safe transfers, good sea‑keeping in choppy conditions, and a craft lightweight enough to lift or stow on deck. They suit owners of cruising yachts who anchor frequently, liveaboards who need regular shore access, and racing teams that require a quick chase boat. For pure sheltered‑water leisure use or minimal shore access, a simpler inflatable dinghy may suffice.

How sailors compare options

Comparisons should centre on intended use aboard the specific yacht rather than headline length alone. Important factors include capacity and load, hull form, floor type, engine compatibility, stowage and lifting arrangements, and material durability against UV and saltwater.

• Capacity: consider realistic passenger and gear loads rather than idealised numbers.
• Hull and floor: a deeper V and rigid floor suit rougher water and higher speeds; soft floors are lighter and packable.
• Engine fit: check transom height and max shaft length, and remember engine weight adds to transom loads and davit stresses.
• Stowage: will the RIB be carried on davits, slung, inside a garage or towed? Each affects shape and fittings.
• Repairability: preference for materials and fittings that can be patched or replaced while cruising.

Conclusion

RIBs are a practical, high‑performance option for sailors needing a capable tender or utility boat. Choosing the right RIB depends on the yacht's stowage and lifting arrangements, the typical sea conditions encountered, crew numbers and how the boat will be used. Thoughtful comparison of hull form, floor type, propulsion and durability will deliver a tender that supports safe, efficient boat handling and enhances the cruising experience.