Interesting thoughts.
I know nothing 'bout the physics, but a swept wing jet will stop in 'bout 250 yards if popped into a field with the gear up (not remembering the chute)
Also, one should remember that a parachute ride in a 30 kt wind might sting a bit!
Tried it, didn't like it much but flew the next day and have no injuries so I guess it works ;-))