Offheading table
I was quite bored today at work so I decided to make a table where I calculated the speed and direction of the canopy after opening based on the offheading angle and wind strengh. Note: this has nothing to do with calculating probable offheading when jumping in different winds. It was meant to be mostly for jumping a wire antennas. Few comments:
120 degree sector is assumed between wires (so most 3 wired antennas)
2 m/s canopy speed in deep brakes.
Wind offset means the deviation, in degrees of wind direction from 0 degree line (straight line between wires)
Offheading - is the deviation, in degrees, of the canopy flight path from the 0 degree line (to either side)
Canopy direction - is the resulting deviation of the flight path of the canopy from the 0 degree line.
Resulting canopy speed - is the velocity of the canopy in the "canopy direction"
There are pre-entered few values of offheadings, from 60 degree up to 180. Obviously under 60 degree offheading is not dangerous because you won't hit the wire.
On the left side there's calculated perpendicular distance to the wires assuming perfect on heading opening based on distance (tracked) from the tower.
Anyway, i don't know if it's of any use or not, but I decided to share it anyway. It may bring some peace of mind for someone, or make others think more before jumping. Feel free to use it, share it and do whatever you like. You can change the values to fit to your needs. Offheading has to be bigger then wind offset, other wise some caluclations may be wrong.