Emergency takeoff charts for fighter aircraft

An important aspect of flight planning is calculating the performance of the aircraft In particular, the ground performance which consists of takeoff distance, rotation velocity (V_ROT) and rejected takeoff (RTO) distance and velocity (V_AB) and varies dramatically with the available runway length and aircraft weight. Recently, an effort has been made to prepare for emergency scenarios in which part of the runway is unavailable for takeoff. Ground performance data has been used to create 'takeoff charts' which present the takeoff risk as a function of two parameters: (i) The available runway; (ii) Aircraft weight. The risk is calculated by evaluating the difference between the rotation velocity and the rejected takeoff velocity for each weight and available runway length. Charts have been produced for fighter aircraft across various Israeli airbases. The charts present a fusion of multiple parameters into a single all-in-one tool (per aircraft per airbase). This way the decision makers are provided with an immediate evaluation of the risk at emergency takeoffs from partially available runways and with an assessment of the maximum aircraft weight for a safe takeoff from a given runway length.