Length of your slack/long/highline, either meters or feet

Total height of drop in middle of slackline with slacker, same units as above

Weight of slacker, either lbs or kg (both work)

For use with rope multiplier system

Estimated: 3" ball bearing=95%, 1.5" bushing=75%

I'D, GriGri, Eddy or whatever. Should be ~60-75% MPD=~95%

Should be 4-25%, unless using Spider Silk

- Line Tension
- Line Stretch w/ Slacker (%)
- Line Stretch w/ Slacker (Length)
- Mechanical Advantage Efficiency
- Theoretical MA
- Efficiency Loss MA
- Line Length (un-stretched)
- Minimum Pulley Throw (length)
- Minimum Pulley Rope Length
- Pull Force Simple MA
- Pull Force Multiplied MA

Static force with non-moving slacker in middle of line (lbs or kg, whichever you used for slacker weight)

Stretch of slackline with slacker %

Stretch of slackline with slacker length

Efficiency of pulley system with brake

Highest possible mechanical advantage with system

Actual mechanical advantage with pulley system and brake loss

Minimum length of slackline required for final (stretched) length

Minimum amount of pulley length required to tension line to desired length

Minimum length of static rope required for desired tension/length

Force required to tension system (at brake)

Force required to tension system (multiplied 3:1 after brake)