Acceleration is the rate of change of an object’s velocity over time. In aircraft design, acceleration is a crucial parameter as it affects the aircraft’s performance and safety. The formula for acceleration is:
SI units for acceleration are meters per second squared (m/s²). In aircraft design, acceleration is often expressed in terms of gravitational acceleration, denoted as “g,” where 1 g is approximately equal to 9.81 m/s² at the Earth’s surface. So, an aircraft experiencing 2 g acceleration is subject to twice the force of gravity in a particular direction.