The astronauts would wait until the appropriate liftoff time that would put them into an orbit close to the CSM, then launch. The pilot would attempt to hold a constant heading, and at pre-determined times during the burn he would adjust the pitch to pre-determined angles. This controlled the vertical and horizontal velocity of the LESS and consequently the orbit that it would enter: the engine would be shut down at a pre-determined time when they should have reached the correct orbit.