"Is the mystery of DB Cooper about to be solved? FBI reveals it has new suspect 40 years after America’s most elusive fugitive parachuted from a hijacked plane"
And that plane was a 727 which is rather unique in civil aviation since it's the only jet with a rear exit door.
Therefore if the jet is flying low and slow, makes skydiving from this particular aircraft once it's depressurized possible compared to a side exit aircraft size of a 777
