Chockstone Forum

      Sponsored By
      ROCK
   HARDWARE

Chockstone Photography

Australian Landscape Prints

Chockstone Forum - For Sale

Buy and Sell Used Climbing Gear Please do not post retail SPAM.

Topic Date User

rope jump 28-Apr-2007 At 2:22:39 PM TonyB

Message

At 250m you should be close to terminal velocity (no pun intended). Together with the fact that that the rope's total surface area is several times that of a human, air friction on the rope should gives an even lower terminal velocity, and more quickly reached terminal velocity, than a free jumper. At 125m your maximum fall speed shouldn't be a lot less. 250m of rope will give twice the deceleration distance that 125m gives. I would hence expect that the loading on the rope would be less for a 250m jump than for a 125m jump.

It would be interesting to time each jump, including the time for the rope to take up slack, as well as the time to stop falling. You could try throwing the rope over with a dummy attached (again, no pun intended).