However, in the case of large changes of momentum, such as a spacecraft being launched into orbit, the effect becomes significant the fastest and most fuel-efficient path to orbit is a launch from the equator which curves to a directly eastward heading.
The effect becomes significant the fastest and most fuel-efficient path to orbit is a launch from the equator. This is however. This is in the case of large changes of momentum. This is such as a spacecraft. This spacecraft is being launched into orbit. This equator curves to a directly eastward heading.