Rejected Takeoff Speed Analysis for Airbus A380
Project Overview
Analyzed the critical decision speed (VRTO) for rejecting takeoff in an Airbus A380 to ensure safe stopping distances under varying conditions. This analysis is vital for flight safety, as it determines the point at which a pilot can safely reject takeoff without exceeding runway limits.

Figure 1: Airbus A380 Preparing for Takeoff
Credit: FlightGlobal
Why Rejected Takeoff Speed (VRTO) is Important
Rejected takeoff speed, or VRTO, is a critical parameter in aviation safety. It represents the maximum speed at which a pilot can safely decide to abort takeoff while ensuring the aircraft stops within the available runway length. This calculation plays a pivotal role in mitigating risks such as engine failure, adverse weather conditions, or sudden obstacles on the runway.
The importance of VRTO lies in its universal application across all aircraft operations. Every pilot calculates and uses VRTO during pre-flight preparations to ensure safe decision-making in emergency scenarios. Modern aviation relies heavily on computational systems to calculate these values precisely, incorporating factors like aircraft weight, runway conditions, and weather data in real-time.
This analysis demonstrates the impact of computational tools in aviation, where speed, precision, and accuracy are paramount. By integrating these calculations into pre-flight checks, pilots can operate with confidence, knowing they have a clear plan for critical moments during takeoff.
Key Results

Figure 2: Latest Decision Point for Rejected Takeoff
The intersection of the blue and red curves represents the critical solution for rejecting takeoff. This point occurs at approximately 1506 meters, where the takeoff velocity equals the maximum velocity to stop safely with the maximum takeoff weight (MTOW).

Figure 3: Speed Profiles for Takeoff and Landing
This graph illustrates the velocity profiles for takeoff and landing under varying weight conditions. The blue curve shows takeoff velocity with MTOW, while the orange and brown curves represent landing velocities with MTOW and zero fuel weight, respectively.
Tools and Skills Used
- MATLAB Simulations
- Aircraft Motion Analysis
- Critical Decision Speed Calculations
Learn More
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