They have also caused issues and even fatalities when inducing two canopy out situations at times where jumpers have opened their main canopies very low or other complications .
Modern AAD 's since they were introduced with the CYPRES1 in 1991 have saved hundreds of lives .
AAD have also caused issues and even fatalities when inducing two canopy out situations at times where jumpers have opened AAD 's main canopies very low or other complications .
Modern AAD 's since they were introduced with the CYPRES1 in 1991 have saved hundreds of lives .