Re: [RkyMtnHigh] Incident comparison
In reply to:
A friend of mine and I are both interested in doing atleast one BASE..he says Angel Falls, I say Twin Falls..
But I'm curious if the incidents are much higher or equal to that of skydiving incidents.
BASE jumping varies from more dangerous to much more dangerous.
The danger relates to what happens if you have a bad exit (unstable exits off cliffs lead to wall-strikes and fatalities, while it's impossible to hit many bridges in freefall), where you are compared to the object on opening (not dealing with a 180 opening after a short delay from a cliff or even a 90 on the wrong cliff will cause a wall strike and perhaps fatality, while bridges and long delays put you farther from other obstacles), and what the landing area is like (size, obstacles, outs. You may have a 30x90' landing area surrounded by a boulder field, railroad tracks with a cliff on one side and drop-off on the other, a reasonable landing area surrounded by trees with no outs, or acres of golf-course). Very low objects make slow openings more dangerous and decrease the time you have to deal with things (I won't freefall cliffs below 300' or static line ones under 200' for that reason).
The legal bridge in Idaho is an ideal place for a first jump because you can have a bad exit, can't hit it on opening, have a long time to deal with line twists that would fly you into the bridge or a rock pile, can land in the water if you have problems, and have a large putting green-smooth landing area. While probably the safest jump you can make, it's still more dangerous than the average skydive because you don't have a reserve and can still hurt yourself if you land on the rock pile.
Jumping a 3000' cliff would be more dangerous (people die in norway after unstable exits), especially with a tight landing area in the jungle.
If you don't want to take a water landing, the bridge day landing area looks tight. While 876' is higher than 490', I don't think altitude beyond 400' makes a jump safer unless it's giving you more tracking time or helping to fly to a better landing area (neither of which is applicable here).
This all relates to the recommended experience for BASE jumping. While you can safely jump the bridge without a lot of experience, you'll probably want to jump other objects where 200 or even 500 parachute flights are not a bad idea. It'll be easier to resist temptation if you don't start early, and more experience with skydiving equipment will make gear problems less likely.