clsalo

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Gear

  • Main Canopy Size
    170
  • Main Canopy Other
    Storm
  • Reserve Canopy Size
    176
  • AAD
    Cypres

Jump Profile

  • Home DZ
    Skydive Orange
  • License
    D
  • License Number
    30018
  • Licensing Organization
    USPA
  • Number of Jumps
    549
  • Years in Sport
    5

Ratings and Rigging

  • AFF
    Instructor
  1. Nastyn8: You are incorrect in your dismissal of using ground speed for horizontal separation. In your example of an 80 mph airspeed into an 80mph headwind, a second group exiting the plane would indeed drift the same path as the previous group (assuming constant winds and skydivers). The only separation between groups would then be based on the path the first group took after deploying their parachutes. For your second example using the boat and dropping sticks into the water, X seconds after dropping the second stick into the water it will be in the same place that the first stick was X seconds after it was dropped into the water. The only reason the sticks do not hit each other is because the first stick continues to move. A different example in the boat with no "ground" speed would be dropping a metal sphere into the water such that it lands on the bottom of the river and then dropping a second similar object into the water. Assuming constant movement of the water, the second object will hit the first. If the boat had some forward upstream speed relative to the "ground", then the second object would land upstream of the first with the separation distance as a product of the forward speed and the time between dropping the two objects.