The bow ramp is the entire reason the boat exists. It is also the component that breaks first, weighs more than people expect, and constrains the cabin layout aft. The format choice (hydraulic vs manual) and the geometry (single piece vs split, bow door vs forward-folding) drive both the user experience and the long-term reliability of the asset.
Hydraulic vs manual
Manual ramps are practical up to about 10m LOA. The ramp is a single composite panel hinged at the deck and counterbalanced with gas struts. A crew of one can deploy it in under 30 seconds. The mechanism is essentially uncrunchable; failure modes are the gas struts (replace every 3 to 5 years) and the latch (annual inspection).
Hydraulic ramps are mandatory above 10m because the panel weight gets unmanageable. Deployment takes 8 to 14 seconds depending on the system. The mechanism is a pair of double-acting cylinders driven by an electric pump. Failure modes are more numerous: pump motor, hose chafe, seal failure, valve sticking. None are catastrophic individually, but the cumulative maintenance load is real.
Budget for a hydraulic-ramp system is usually 60,000 to 120,000 EUR depending on size and finish.
Single panel vs split
A single-panel ramp is structurally cleaner but constrains the bow geometry. The cabin (or windscreen, on an open beach lander) has to sit aft of the hinge line, which costs interior length.
A split ramp (bow doors that swing outward, with a folding lower threshold) recovers some of the forward cabin volume at the cost of more hinges, more seals, and more potential leak paths. Split ramps are more common on the limo-format beach landers above 12m where cabin volume is the binding constraint.
Bow doors with no folding threshold (some smaller Castoldi-style designs) are quicker to deploy but require a deeper draft at the bow because guests step over the door sill rather than down a ramp.
Sea-state limits
Most ramps have a documented maximum deployment sea state. Typical numbers:
- Beaufort 2 (waves to 0.5m): routine deployment, no issues
- Beaufort 3 (waves to 1.0m): deployment possible with careful boat-handling
- Beaufort 4 (waves to 1.5m): approaches the design limit; risk of guest injury during transit on/off the ramp
- Beaufort 5+: do not deploy
The limit comes from two factors: the ramp itself slamming on the beach as the boat surges fore-aft in the swell, and the trip hazard for guests stepping across an unstable transition. Both worsen sharply above Beaufort 4.
Ramp width
A guest ramp needs to be at least 800mm clear width for comfortable single-file boarding. Wheelchair access requires 1,000mm. Crew-only ramps can run as narrow as 600mm. Most production beach landers in the 10 to 12m bracket settle on 900 to 1,100mm.
Hinge geometry
The hinge line is the single point of structural concern. It carries the full weight of the ramp, the load of guests stepping across it, and the slamming load when the bow rises against the beach. Builders address this with one of three approaches:
- Stainless pin and bushing. Cheap, simple, replaceable. Wears in 3 to 5 years of regular use. Best for boats that see seasonal heavy use then winter storage.
- Bronze sleeve bearing. More expensive, longer life (8 to 12 years), tolerates salt better. Standard on most upper-end builds.
- Sealed cartridge bearing. Premium spec; 15 year life with annual greasing. Found on Wajer, Hodgdon, and a few others.
Ask which the boat has and what the replacement procedure looks like; on some designs the entire ramp comes off, which is a yard-only job.
Specification questions
Before contract:
- Maximum deployment sea state, documented by the builder.
- Deployment time from helm command to ramp-down-and-locked.
- Hinge bearing type and serviceability (in-water vs lift-out).
- Bow shoe replacement procedure and interval against your expected beach pattern.
- Failsafe for hydraulic ramp loss-of-pressure (manual override mechanism, if any).