Zipstop Configuration Worksheet - HEADRUSH ZSIR150-20A Installation, Operation & Maintenance Manual

8.13 zipSTOP Configuration Worksheet

Use this worksheet in conjunction with the braking distance charts at the back of this manual. Worksheet
must be completed in metric. Read the zipSTOP Brake assembly configuration notes and definitions before
completing the worksheet. Distances calculated by this worksheet are based on a flat line with no outside
influences such as wind, friction etc. Actual braking distances can vary from these values. Always determine
actual braking distances by completing unmanned test runs on final zip line installation prior to putting the
installation into operation.
1 Select Redirection Ratio and go to braking distance chart for selected Redirection Ratio.
If Redirection Ratio = 1:1, enter 1
If Redirection Ratio = 2:1, enter 2 (model ZS125-08 only)
2 Enter maximum expected rider arrival speed (ASmax)
Enter minimum expected rider arrival speed (ASmin)
3 Enter maximum anticipated rider weight
4 Enter minimum anticipated rider weight
5 Determine pivot height
Minimum pivot height = 1.0 m (40")
6 Enter buffer zone length
7 Go to braking distance chart for selected Redirection Ratio and Model Number. Reference the metric
charts available on pages 60 & 62.
8 From relevant chart determine the braking distance for maximum anticipated rider
weight (RWmax) and speed
9 Add pivot height to give maximum braking distance
BDmax = BD1 + PH
10 Check maximum braking distance + buffer zone does not exceed maximum zipSTOP
Braking Line extension.
Line Extension (LEX) = (BDmax + BZ) / RR
LEX must be less than or equal to 12.
11 From relevant chart determine braking distance for minimum anticipated rider weight
12 Add pivot height to give minimum braking distance.
BDmin = BD2 + PH
13 Check stopping distance is not below the 'BDmin' line. Distances below this line will
result in a severe deceleration for the rider
14 Calculate braking range:
BR = BDmax – Bdmin
15 Calculate Reset Point (Arrest Zone Start Point):
RP = BDmax + BZ
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RR =
ASmax =
ASmin =
RWmax =
RWmin =
PH
BZ
BD1 =
BDmax =
LEX =
(see Note 1)
BD2 =
BDmin =
Above BD-
Y / N
min line?
BR =
RP =
33