The IAD progression is comprised of 20 jumps.  Each jump builds upon the lessons learned in the previous jumps.  The IAD course begins with two jumps where the student's parachute in deployed upon exit from the aircraft.  Once the students parachute is open, they make a solo canopy descent while being guided from the ground by a qualified instructor using a radio.  Following the initial two jumps, students perform 3 practice rip cord pulls.  On subsequent jumps, the student pulls his or her own ripcord deploying the parachute after a pre defined delay giving the student increasing exposure to freefall.