Intact Abort

There are four types of intact abort modes:

•  Return to launch site

•  Transatlantic landing

•  Abort to orbit

•  Abort once around.

The RTLS (return to launch site) will require flying downwards with the help of propellants to return directly to a landing site or near the launch site.

The TLL (transatlantic landing) abort is designed to permit an intact landing on the other side of the Atlantic Ocean

The ATO (about to orbit) mode is designed to allow the vehicle to achieve a temporary orbit that is lower than the nominal orbit. This mode requires less performance and permits time to evaluate problems

The AOA (abort once around) would permit the vehicle to fly once around the Earth and make a normal entry and landing.