1. What is Full Strength Pavement Distance?

Full Strength Pavement Distance (FS) refers to the length of runway pavement designed to support the full weight of an aircraft during takeoff and landing operations, particularly in cases of aborted takeoff scenarios.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( FS \) — Full Strength Pavement Distance (m)
• \( DAS \) — Distance to Accelerate and Stop (m)
• \( SW \) — Stopway Distance (m)

Explanation: This formula calculates the required pavement strength distance by subtracting the stopway distance from the total distance needed for acceleration and stopping.

3. Importance of FS Calculation

Details: Accurate FS calculation is crucial for runway design and safety, ensuring that aircraft have sufficient reinforced pavement for emergency situations such as aborted takeoffs.

4. Using the Calculator

Tips: Enter Distance to Accelerate and Stop and Stopway Distance in meters. Both values must be valid positive numbers, with Stopway Distance not exceeding Distance to Accelerate and Stop.

5. Frequently Asked Questions (FAQ)

Q1: What is the purpose of Full Strength Pavement?
A: Full Strength Pavement provides structural support for aircraft during critical operations, particularly in emergency situations where maximum braking is required.

Q2: How does Stopway Distance differ from Full Strength Pavement?
A: Stopway is an area beyond the runway that can be used for stopping in an emergency but may not have full pavement strength, while Full Strength Pavement is specifically designed to support aircraft weight.

Q3: When is this calculation most important?
A: This calculation is critical during runway design, expansion projects, and safety assessments for airports handling large aircraft.

Q4: Are there regulatory requirements for FS?
A: Yes, aviation authorities like ICAO and FAA have specific requirements for full strength pavement distances based on aircraft categories and airport classifications.

Q5: How does aircraft weight affect FS requirements?
A: Heavier aircraft require longer full strength pavement distances due to increased braking forces and structural load requirements during aborted takeoffs.