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Clearway Distance Formula:
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Clearway Distance is the difference between takeoff distance available (TODA) and takeoff run available (TORA). It represents the additional distance beyond the runway that is available for aircraft takeoff operations.
The calculator uses the Clearway Distance formula:
Where:
Explanation: The equation calculates the additional distance available beyond the runway for aircraft to clear the 35-foot obstacle during takeoff.
Details: Accurate Clearway Distance calculation is crucial for aircraft performance planning, runway design, and ensuring safe takeoff operations, especially for aircraft operating at maximum takeoff weight.
Tips: Enter Distance to Clear 35 ft Obstacle and Takeoff Run in Clearway in meters. Both values must be valid positive numbers, with D35 greater than or equal to TClearway.
Q1: What is the purpose of Clearway in aviation?
A: Clearway provides additional area beyond the runway that is free of obstacles, allowing aircraft to achieve the required obstacle clearance height during takeoff.
Q2: How is Clearway Distance different from Stopway?
A: Clearway is used for takeoff operations while stopway is used for aborted takeoffs. Clearway must be free of obstacles, while stopway must be capable of supporting aircraft weight.
Q3: What are typical Clearway Distance requirements?
A: Requirements vary by aircraft type and airport category, but typically range from 60-300 meters depending on the aircraft's performance characteristics.
Q4: When is Clearway Distance most critical?
A: Clearway Distance is most critical for aircraft operating at maximum takeoff weight, in high temperature conditions, or at high elevation airports.
Q5: How does Clearway affect aircraft performance calculations?
A: Adequate Clearway Distance allows for reduced runway length requirements and enables aircraft to operate with higher takeoff weights under specific conditions.