An advanced aerodynamic augmentation system for sails and marine wind-propulsion. Enhances lift, reduces drag, and improves propulsion efficiency across a wide range of sailing vessels.

Stability-Oriented Aerodynamic Venting for Safer, Easier Sailing
The Vellox AeroSail Vent System is an airflow-balancing technology designed to make sailing smoother, more predictable, and significantly safer.
By moderating pressure across the sail and reducing sudden heel spikes, AeroSail improves handling in gusting conditions and reduces capsize-risk scenarios.
This is sailing made calmer — and more accessible for sailors of all ages.
Key Advantages
- Reduces heel/roll variation in gusts
- Less force on sheets & helm during tacking
- Easier autopilot handling → fewer corrections
- More comfortable + safer for family & senior sailors
- Supports stable cruising instead of speed-pushing
- Reduces risk factors leading to knockdown/capsize events
Designed For
- Family cruising vessels
- Senior or mobility-limited sailors
- Long-distance solo sailors on autopilot
- Training fleets & sailing schools
- Recreational cruisers prioritizing comfort & safety
Safety & Stability Improvements vs Standard Sails
| Outcome Area | Typical Improvement |
|---|---|
| Heel Angle Variability in Gusts | 10–30% reduction |
| Sheet Load Shock Spikes | 12–25% reduction |
| Autopilot Workload | Noticeable drop in course-correction frequency |
| Sail Handling & Balance | More forgiving control feel |
| Capsize-Risk Scenario Contributors | Meaningfully reduced |
| Comfort for All Skill Levels | Substantially improved |
These outcomes reflect stability-oriented aerodynamic venting behavior observed in similar controlled-flow technologies.
Why It Matters
Most sailors don’t seek maximum speed —
they seek control, comfort, and safety.
AeroSail reduces the forces that lead to uncontrolled heel, fatigue, and capsize-risk, allowing more people to sail longer, safely, and with greater enjoyment.
Safe. Stable. Enjoyable sailing — for everyone.
Vellox AeroSail — Patent Pending