APPENDIX
PerfectPass All Buoy Timing
Version 4 IWSF Approved 2001
The All Buoy Timing Method (ABT) eliminates the need for a fall button. In Tournament Use, after a
skier falls or misses during a pass, the boat is timed to the next set of boat gates. Because the boat
travels only a relatively short distance before the time is measured, the boat speed does not change
significantly. Thus the time is an accurate measure of the speed of the boat while pulling the skier.
If the skier runs a full pass, the full course time is used to determine if the boat speed was within
tolerance. For scores less than six, a chart showing the timing tolerances for each buoy score is used.
This method uses the cumulative time from the gates up to the last ball scored. With this approach,
only one segment time is required.
After each pass, the PerfectPass system briefly displays the Full Course Time and then the two
separate segments as in this 34.2 mph example.
[ 0.0 16.95 OK ]
then
[ 7.13 9.82 OK ]
If the
score was less than six, then the ABT sub-menu is entered via the Down Key. The times are displayed
in pairs preceded by the score identification and a colon. (Press any key to take you to the next set
of scores).
For example:
if the score were four and a quarter, you would scroll through the ABT
times until the 4 ID is found which would appear as: “
4: 12.50 5: 15.19
” The time of 12.50 would be
called in. For a score of one and a half the display showing “
0: 1.77 1: 4.45
” is used and only the
4.45 time is reported. All of the existing rules for optional and mandatory rerides are applied to the
ABT times
. (The guide is to always refer to the time segment corresponding to the score. Example: If
the score starts with a 4 you look at the time following the 4 and call in that time only.
Magnets:
A minimum of eight magnets and two Smart Timers are required to run ABT, a course with
ball one magnets had eight magnets already, two are on the entrance and exit gates and two Smart
Timers are required for the jump event, so for many sites the equipment necessary to use ABT
already exists.
PerfectPass All Buoy Timing
36mph/58kph
IWSF approved method 4
score
score id.
fast in
actual
slow in
0 to 0.5
0:
1.64
1.68
1.71
1 to 1.5
1:
4.15
4.22
4.28
2 to 2.5
2:
6.67
6.77
6.84
3 to 3.5
3:
9.20
9.31
9.41
4 to 4.5
4:
11.73
11.86
11.97
5 to 5.5
5:
14.25
14.40
14.53
6
16.00
16.08
16.16
