🚤 Hydrofoil Water Ski Stabilization System

2000 kg Boat Configuration - Buoyant Feeler Control

The feeler foil "skis" on the water surface, using buoyancy feedback to maintain constant ride height

Ride Height (h): 50 mm
Main Foil Angle (α): 0.31°
Lift Force: 19620 N
Lift Coefficient (Cₗ): 0.231
System State: EQUILIBRIUM
Boat Mass:
2000 kg (19,620 N weight)
Foil Area:
1.0 m² total (2 × 0.5 m² foils)
Design Speed:
25 knots
Linkage Ratio (R):
-3.0 rad/m
Height Stiffness:
1.45 MN/m

🌊 Wave Disturbances

⚙️ Speed Controls

🎨 Component Legend

Hull Platform (2000 kg)
Main Foil (0.5 m² each, generates lift)
Feeler "Water Ski" (buoyancy sensor)
Torsion Spring (restores neutral angle)
Linkage (transmits feeler position to foil)

⚙️ Water Ski Control Principle:

Feeler Too High (out of water): Linkage reduces main foil α → Less lift → Boat descends

Feeler Too Low (submerged): Buoyancy pushes feeler up → Linkage increases main foil α → More lift → Boat rises

Equilibrium: Feeler skis at water surface, maintaining constant ride height

Response: Self-correcting mechanical feedback with ~0.23s settling time