Three Ways to See the Physics for Yourself
Braking, cornering, and impact each put different forces on a partially loaded tank. Run your own numbers for each one, with your own tank, your own liquid, and your own fill level.
Braking Surge Force Calculator
What happens during an emergency stop. Enter your tank capacity, liquid density, fill level, road surface, and axle configuration to see estimated surge force and total braking demand, with and without Surge Busters installed. Work in imperial or metric units, and save your results as a PDF. Results are estimates for education and planning.
Run the Calculator →
Center-of-Gravity & Rollover Stability: What's the Right Question?
Why a parked truck's center of gravity doesn't predict whether it rolls over, and what actually happens once the liquid starts moving in a turn. Real reference numbers across three liquids, plus the full dynamic model behind them.
See the Center-of-Gravity ModelCollision Scenarios
A bridge abutment, another truck, or a passenger car produce very different deceleration from the same 70 mph impact. See how the numbers compare, and where Surge Force fits into a collision rather than a controlled stop.
See the Collision ComparisonGet Started
Three different forces. Three different moments. One product addressing all of them.
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