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The Perfect Choice for Shallow and Inland Waters
Hydro Hull M3

Planing Hull Design
Low Drag for Effortless Gliding

Enhanced Stability
Anti-Roll Design for a Steady Ride
Flat-bottom boats have a wide hull that provides high initial buoyancy, countering rocking from weight shifts. However, without a curved hull, they respond directly to waves, causing even minor swells to rock the boat and reduce passenger comfort.
Firm Grip on the Water
Even in calm conditions, flat-bottom boats struggle to stay steady. Without fins or flow-control structures, they are hard to control and prone to tipping if weight shifts beyond a critical point.
The M3’s wide hull provides a large water-contact area and excellent initial stability, while its streamlined shape helps cut through waves. Its advanced hull, formed using proprietary hydraulic molding, integrates flow-guiding fins and simplified structures into a single design for a smooth, stable ride.
During turns, longitudinal strakes act like ice skates, allowing the M3 to firmly “grip” the water, giving the captain car-like control. This planing hull combines the glide efficiency of a flat-bottom boat with the directional stability of a V-hull, delivering confidence and peace of mind on every trip.

One-Piece Hull Flow Design
Integrated Construction for Enhanced Longitudinal Strength
This curved design allows the boat to “grip” more water during turns, increasing reactive force to reduce sideways slip and shrink the turning radius. The lightweight M3 hull also benefits from improved longitudinal strength, sharing K-Boat’s signature advanced forming techniques.
Spray-guard chines below the waterline further enhance balance, channeling waves outward like hydrofoils and keeping passengers dry in a protected zone. Combined with the hull’s longitudinal ridges, the M3 glides smoothly and stably across the water, delivering a relaxed and natural ride.
Hull Types & Performance Comparison
Category | Flat-Bottom | Deep-V | Hydro Hull M3 |
---|---|---|---|
Hull Type | Planing | Displacement | Planing |
Performance | Fast acceleration Hard to control |
Slow acceleration Low top speed |
High top speed Easy to handle |
Recovery | Easy to exceed critical point | Hard to exceed critical point | Hard to exceed center-of-gravity limit |
Wave Resistance | Poor | Moderate | Moderate |
Tracking | Poor | Good | Good |