Slalom Module - USA Water Ski

Report
2015 AWSA TECH CONTROLLER MAINTENANCE CLINIC
SLALOM MODULE
COURSE
• TC responsible to ensure nothing was changed from last Survey.
• Boat Guides are correct (height out of water), visual on the EC
video.
• Turn buoys/gate dia/height: We use min tolerance, but you
need to view from judges tower to ensure buoys are visible and
visible for skier.
Dia 20 cm (7.8”) and fastened so that they have of
height out of the water (10 cm (3.9”).
• Water/fluid is un-acceptable in a buoy.
• Gate buoy must have at least 16” of elastic to allow buoy to be
flexible (move up/down).
• Turn buoy from boat C/L tolerance –
approx +/- 4 ½” (11.4cm/0.114m).
• Pre-gate tolerance from Gate - approx +/- 1 ft.
• Diagonal distance (from one turn buoy to other one)
approx 9”.
• The average distance from the calculated C/L for all 6 turn
COURSE
Gate Video
• Camera must be 10 feet above water @ 100ft.
(100ft from course C/L). For every addition 10ft away, an
additional 1 ft in height is required. This is due to the angle
looking in to the gate/skier path at 44deg;
not the zoom ratio, that is the 1/3 screen width.
• Gate Video- The gate width must NOT be less than 1/3 of
screen width and the screen width for one gate should not be
less than 6”x8”? (We need to specify the min size allowed)
• SplashEye Gates go full screen (may have to bump down the
resolution on a newer monitor to make sure it physically fills up
the screen)
• Gate Video(captured)is required for Class R (World Records)
Gate Camera Location (Visual Setup) (44 deg from shore)
(How to find where the gate camera should be prior to
survey)
Assuming the shoreline is about 170 feet from the course
centerline -- typical for a slalom course slightly cocked
clockwise in a slalom lake about 300 feet wide -- then you
want to find a point on the shoreline, where when you
examine your location relative to the G1/G2 gate, and the
G3/G4 boat gate, and skier buoy S1, your view has the S1
buoy sitting 2/3-rds of the way through the angle formed by
your line of sight to those two gates, as shown in the picture
next slide (Dave Clark)
EC Video
• EC Video – The far gates (entry/exit) must NOT be less than 1/6
of screen.
• Must be able to see the top of boat (pylon thru course).
• Camera must be level- can not measure the pylon deviation if
not level (Record Checker computer (pixels) is based on
everything straight/square.
• Near Pre-gates are not required to be in the video. Normally
just capture the top of the pre-gates.
• Capture Device- Must be set at 30fps and can not be less than
resolution of 704x480.
• Capture Device- Verify time is correct (match the scoring
program)
• Capture set at high resolution
• Verify Playback prior to start of tournament
• Locate were someone will be watching EC video at all times.
Towers/Tower Judges
• Tower: Ref Rule books for several options, the following are
the requirements that must be meet in all cases.
• Tower must be 10 feet (seat surface) above water @ 100ft.
(100ft from course C/L)
• For every addition 10ft away, an additional 1 ft in height is
required.
• 2-Gate Judges per gate-ALL cases:
• None-Video-2 judges must be at 44deg (must have 4
judges)
• Video-Gates -2 judges at any location where the video is
transmitted to. (this can be the skier judges)
Towers/Tower Judges Cont:
• 3- Tower Judges
• 2- judges between 3-4 on the same side visually
watching with
• 1- judge watching boat video being transmitter live
(anywhere) (this can be the CJ, but NOT the 2 skier
judges)
• 4- Tower Judges
• 2 – judges at 44deg on each end.
• Can not put 1 judge at ea 44 deg and transmit the gate
video down to other judge; Not meeting the 2 tower
judge location, that are visually watching)
Slalom Towers:
Class E: If configuration is acceptable for Class L/R it is also acceptable for Class E.
Number judges in the Conf includes boat judge (which is always required)
Conf #1: 5 Judges: Class E/L/R: Video gate/boat review is not required for this
configuration:
Conf #2: 3 to 4 judges: Class L/R: If the gates video is transmitted to the other tower
judge (J4), the extra judge (J2) is not required. If gate video is not transmitted to the
other tower judge (J4), the extra judge (J2) is required to review gates only.
NOT recommend placing the tower near 2 or 5.
Conf 3:
Class E requires 3 judges, the Boat Video is NOT required to be transmitted to shore.
Class L/R requires 4 Judges, Boat Video MUST be transmitted to an individual judge who
may be the CJ. ( PER IWWF Requirements)
Ropes/handle checker:
• All ropes should be pre-stretched and adjusted as close to actual as possible.
• Approximately 20 inches of rope stuffed into the line will shorten it one (1) inch.
When stuffing rope pieces into a line, be sure and cut the ends at an angle to
lessen the stress rise created by a straight cut.
• If Multiple ropes are being used, they MUST be same make/model for that
division.
• 3 different Slalom Lines
• Standard – meets the all specification
• Mid youth- (7mm) This is like the older 12 std
• , meets all specification put is not preferred for anything shorter than 38off.
Optional in Class C, E & L for B1, B2, G1, G2, W6 and above only.
• Light Line- (5mm)Does NOT meet IWWF specification; Used only in Class C or
E for B1,B2,G1,G2,W6 and above up to 35ft off.
NOTE in Class L.
Ropes/handle checker:
Standard rope spec
• Weight per foot, maximum = 23 g/m (.250 oz.)
• Breaking Load, minimum = 817 kg (1,800 lbs.)
• Elongation at 115 kg (250 lbs.) tensile load, 2.6% +/- 0.4%
(Note: Adult skier applies approx. 1000 lbs)
• The gauge length shall be set at 5.5 kg (12 lbs.) tensile load
• IWWF states (Request has bee submitted deleting)
• Number of Strands = 12
• Minimum Number of Yarns each strand = 60
Towline measurement: Pic showing that the measurement taken from inside 12m loop
that goes on the pylon
Ropes/handle checker:
• Tournament Handles: must be close to actual (1.5m). There
is a min distance for tournament handle but not for skier
supplied handles.
• Handle checker: Mark the max distance from inside of the
handle to the loop inside edge. Use a steel tape measure
and use a second tape measure to re-verify. (Tape measure
have been found to be incorrect).
• Handle Length 150cm, max = 1.525m
• Handle checker: use a 2 ½” block to hold handle end.
• This is for measuring curved handle.
• Make handle checker in destructible. Use actual weight
(#44) in lieu of scale if feasible.
Ropes/handle checker:
• Tolerance: The current tolerance are PRE-TOLERANCE, used
by MFG and TC measuring.
• We are now using this same tolerance as POST TOLERANCE.
(handles will be checked after skiing)
• Handles will stretch a min ¼” after skiing.
• Handle- found out-of-tolerance: it is the TC responsibility to
re-verify. Recheck using a tape measure and recheck handle
checker to ensure that nothing moved.
• Nat’l Records- Handle will remain attached to rope, but the
handle will be checked after returning to doc.
• Ropes will stretch out of tolerance if measured after skiing,
wait approx. 45 min – 1 hr for measuring rope/handle for a
record.
• AT NO TIME should a HANDLE be checked without another
official verifying when reported by the doc starter as being
out of tolerance.
10.07 Boat Path
The boat path is intended to be a straight line along the centerline of the course. In no
case shall any part of the towboat deviate outside the bounds of the boat gates. The
bounds of the boat gates shall be defined by the center of the attachment point of each
buoy.
Maximum deviation of the boat on approach to each buoy/gate is 20 cm (8 inches)
toward the side of the skier buoy. The Total Cumulative Deviation (the algebraic sum of
the individual deviations) is to be evaluated based on the score for the pass, as follows:
Score
Limit
Score
Limit
0.25 - 1.00
20 cm
3.25 - 4.00
40 cm
1.25 - 2.00
28 cm
4.25 - 5.00
45 cm
2.25 - 3.00
35 cm
5.25 - 6.00
49 cm
BOAT: 1) It is required to install a black approx 5 cm wide strip up the middle of the
windshield if there’s no C/L on windshield OR
2)Two marks or small posts can be mounted on each side of windshield at 20 cm from
C/L OR
3) RECOMMED installing a small pole (PVC) to pylon approx. 2 ft above pylon:
Help in reviewing EC video to determine if boat deviations more than 20 cm.
DRIVERS: Most drivers start out on 1 ball side, starting out with a negative deviation.
Capture Devices
• 4 channel DVR is a good device for capture all video (ECOR 9604F. Recommend output to a 30” TV/monitor.
• (EC, Gates, Boat Video is used) Can be purchased $320.00
• Splasheye- Same but it as auto gate playback.
• Splasheye also has an option using EC input to auto track boat
path; Purchased approx. $1000.00- 2000.00.
• Computer is standard equip that can be purchased at local
store or from Splasheye.
• Loreto Video Program as Slalom Gate Program. This program can
be purchased for approx $2000.00 which includes Slalom Gates,
Trick Timer and Video Jump.
• Computer is also standard equip that can be purchased at
local stores.
• Next few pic show an example of DVR and Splasheye setup
44 Ch DVR to a 30 in Flat Screen TV (Both Gates, EC and Boat Video
Splasheye –Slalom Gates
Splasheye –Review of Gates
SURVEY
• General Module covered some basic, listed below are specific to Slalom Survey
• 1st Verification of Site that has not been survived for record tournament, it is
recommended to do a 3 point survey.
This takes out any error due to the swimmer moving the buoy, plus the spread sheet
will indicate if there was a sighting error.
• AWSA Spread sheets uses all the boat guides to determine the boat C/L. I recommend
NOT to input the Pre-Gates until you verify everything, then input the Pre-Gates.
If ONE boat guide is out of line, it will shift the boat C/L over, and may show several
buoys out of tolerance, it is very IMPORTANT to visually look at a course prior to
surveying. I have actually moved boat guides to line up with the others prior to
surveying.
• Other Spread sheets just uses the Entry/Exit Gates to determine the boat C/L. If 1 of
the 4 gate buoy is off, it will show several interior boat guides off. Again visually verify
prior to moving a much of buoys.
• Next slides show example of 2 types of spread sheets, in addition Emmanuel Lion’s
Homologation Report as Survey Data Sheet.
Buoy
Tar get :
----P1
P2
G1
G2
G3
G4
S1
S2
G5
G6
G7
G8
S3
S4
G9
G10
G11
G12
S5
S6
G13
G14
G15
G16
P15
P16
TNL
TFR
A- C
-----
Segment
----G- S1
S1- 2
S2- 3
S3- 4
Angl e and Di
- - - - -- - - - - - - St at i on A
Deg Mi n Sec
---- ---- --14
39
48
13
52
22
19
30
50
18
16
13
23
57
8
22
31
30
15
55
20
47
31
55
39
9
32
37
2
8
91
21
33
91
5
43
88
59
36
139
21
58
147
52
19
150
6
3
164
30
3
165
58
4
172
50
54
166
30
0
170
59
24
172
0
12
173
20
10
174
17
17
176
22
7
177
0
3
359
0
0
158
16
24
-----
---- ---
s t anc e I nput Val ues
-------- -- ------- ---EDM
St at i on
Di s t
Deg Mi n
----- - - - -- - - 168. 140
167. 860
114. 470
113. 830
88. 540
87. 850
85. 200
58. 280
51. 660
50. 460
29. 380
27. 150
16. 820
55. 910
49. 060
47. 770
85. 560
84. 820
82. 100
127. 690
124. 910
124. 350
151. 310
150. 800
205. 460
Her e
205. 250
76. 000
132. 000
-----
--C
Sec
---
- - - - -- - - - - - -
Di agonal Di s t anc es and Er r or s
------- ---- ---- -------- -- ----Ac t ual
I deal
Er r or OK
Li m
-------------------29. 397
29. 347
0. 050
0 . 147
46. 876
47. 011
- 0. 135
0 . 235
47. 048
47. 011
0. 037
0 . 235
47. 016
47. 011
0. 005
0 . 235
Si ght i ng
Er r or s
-------OK Val ue
--------0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
0
0. 000
-----0. 000
Tr ans f or med
Coor di nat es
------------X- Pos
Wi dt h
--------- 54. 93
1. 222
- 55. 04
1. 110
0. 02
1. 284
0. 03
1. 274
27. 10
1. 153
27. 05
1. 149
27. 09
11. 457
67. 97
11. 481
68. 10
1. 091
68. 06
1. 149
108. 96
1. 061
108. 96
1. 178
108. 98
11. 583
149. 97
11. 454
149. 90
1. 099
149. 95
1. 183
190. 94
1. 167
190. 97
1. 136
190. 97
11. 511
231. 98
11. 426
232. 00
1. 149
231. 96
1. 124
259. 00
1. 305
258. 97
1. 256
313. 95
1. 151
314. 05
1. 123
34. 97
35. 598
228. 93
30. 302
----------Av er ages
11. 485
Der i v ed Up and Down Cour s e Di
+/ G2/ G4/ G6 Si de
I dl
Li m
Leng
Er r or OK
-- -------------27 . 135
27. 024
0. 024 0
41 . 205
41. 010
0. 010 0
41 . 205
40. 899
- 0. 101 0
41 . 205
40. 990
- 0. 010 0
Wi dt h Er r or s f r om Bes t Fi t
Cent er l i ne ( er r or i s wi de
i f pl us , nar r ow i f mi nus )
I deal
+/ - Li m Er r or OK
------ - - - - -- - - - - - - 1. 150
0. 115
0. 072 0
1. 150
0. 115 - 0. 040 0
1. 250
0. 063
0. 034 0
1. 250
0. 063
0. 024 0
1. 150
0. 115
0. 003 0
1. 150
0. 115 - 0. 001 0
11. 500
0. 115 - 0. 043 0
11. 500
0. 115 - 0. 019 0
1. 150
0. 115 - 0. 059 0
1. 150
0. 115 - 0. 001 0
1. 150
0. 115 - 0. 089 0
1. 150
0. 115
0. 028 0
11. 500
0. 115
0. 083 0
11. 500
0. 115 - 0. 046 0
1. 150
0. 115 - 0. 051 0
1. 150
0. 115
0. 033 0
1. 150
0. 115
0. 017 0
1. 150
0. 115 - 0. 014 0
11. 500
0. 115
0. 011 0
11. 500
0. 115 - 0. 074 0
1. 150
0. 115 - 0. 001 0
1. 150
0. 115 - 0. 026 0
1. 250
0. 063
0. 055 0
1. 250
0. 063
0. 006 0
1. 150
0. 115
0. 001 0
1. 150
0. 115 - 0. 027 0
Angl e:
45. 53
1. 53 0
Angl e:
45. 24
1. 24 0
---------------0
( Mi ni mum 11. 48)
s t anc es and Comput ed Er r or s
G1/ G3/ G5 Si de
Thr u Sk i er By s
Leng
Er r or OK
Leng Er r or OK
-------------- -------27. 081
0. 081 0
27. 070
0. 070 0
41. 004
0. 004 0
40. 880 - 0. 120 0
40. 855
- 0. 145 0
41. 007
0. 007 0
40. 945
- 0. 055 0
40. 986 - 0. 014 0
Ed Brazil Slalom Installation Program.
This is a program that Ed Brazil wrote that is great for
installing a slalom course.
2.0 =VERTICAL HT OF INSTRUMENT (M)
2.3 =INTERIOR & PREGATE WIDTH
ITEM
G1
G2
G3
G4
G5
G6
G7
G8
G9
G10
G11
G12
G13
G14
G15
G16
S1
S2
S3
S4
S5
S6
P1PRE
P2PRE
P17AFT
P18AFT
CLVID
LTWR
RTWR
SPARE
SPARE
SPARE
SPARE
SPARE
*ACTUALLY MEASURED*
*****STAKEOUT INFO*****
DEGREES DEGREE
SLOPE ANGLES
ANGLES
SLOPE
DECIMAL HORIZ.
VS. THEO AXIS
VERSUS COURSE
ERROR
DIST DEG MIN SEC DECIMAL
DEG MIN SEC ITEM
DIST.
DIST
ANGLE
Y
X
Y1
X1
-0.005
36.130
48
7
36
170.630
6 G1
8
36
170.613
36.1351 170.602
-137.783 100.602
1.25
0.00
-0.006
35.444
40
26
35
169.150
3 G2
27
35
169.153
35.4508 169.141
98.102
-137.784
-1.25
0.00
0.017
42.226
35
13
42
149.550
36 G3
12
42
149.581
42.2099 149.567
-110.783 100.487
1.15
27.00
0.001
41.551
5
33
41
148.020
1 G4
33
41
148.047
41.5501 148.033
98.187
-110.784
-1.15
27.00
0.002
55.217
2
13
55
122.400
56 G5
12
55
122.337
55.2156 122.321
-69.783 100.463
1.15
68.00
-0.027
54.563
48
33
54
120.450
27 G6
35
54
120.456
54.5908 120.440
98.163
-69.784
-1.15
68.00
0.012
74.021
17
1
74
104.540
33 G7
0
74
104.501
74.0092 104.482
-28.783 100.439
1.15
109.00
-0.025
73.628
42
37
73
102.300
13 G8
39
73
102.293
73.6535 102.273
98.139
-28.784
-1.15
109.00
0.020
96.957
24
57
96
101.180
13 G9
56
96
101.175
96.9368 101.155
12.217 100.415
1.15
150.00
0.006
97.103
12
6
97
98.900
49 G10
5
97
98.893
98.872
97.097
98.115
12.216
-1.15
150.00
0.003
117.931
51
55
113.600 117
41 G11
55
113.642 117
117.928 113.624
53.217 100.391
1.15
191.00
-0.004
118.476
35
28
111.660 118
50 G12
28
111.614 118
118.48 111.596
98.091
53.216
-1.15
191.00
-0.001
133.188
18
11
137.680 133
23 G13
11
137.675 133
133.19 137.660
94.217 100.367
1.15
232.00
0.000
133.853
9
51
136.020 133
9 G14
51
136.006 133
133.853 135.992
98.067
94.216
-1.15
232.00
-0.003
140.348
54
20
157.420 140
6 G15
21
157.442 140
140.352 157.430
121.217 100.451
1.25
259.00
-0.023
141.037
12
2
155.800 141
33 G16
3
155.858 141
141.059 155.845
97.951
121.216
-1.25
259.00
-0.012
38.396
46
23
38
141.400
29 S1
24
38
141.399
38.408 141.385
87.837
-110.790
-11.50
27.00
0.009
57.811
40
48
57
130.930
7 S2
48
57
130.967
57.8021 130.951
-69.777 110.813
11.50
68.00
-0.005
71.838
18
50
71
92.360
35 S3
50
71
92.411
92.389
71.8431
87.789
-28.790
-11.50
109.00
-0.011
96.287
12
17
96
111.430
50 S4
17
96
111.455
96.2972 111.437
12.223 110.765
11.50
150.00
-0.008
121.227
36
13
102.600 121
3 S5
14
102.634 121
121.234 102.615
87.741
53.210
-11.50
191.00
0.010
130.408
30
24
145.460 130
55 S6
23
145.397 130
130.399 145.383
94.223 110.717
11.50
232.00
0.000 -27.542
30 P1PRE
32
27
217.431
27.5416 217.422
-192.783 100.534
1.15
-55.00
0.000 -27.001
5 P2PRE
0
27
216.379
27.0014 216.370
98.234
-192.784
-1.15
-55.00
0.000 -150.347
51 P17AFT
20
202.782 150
150.347 202.772
176.217 100.319
1.15
314.00
0.000 -150.915
55 P18AFT
54
201.653 150
150.915 201.643
98.019
176.216
-1.15
314.00
0.000 -14.391
26 CLVID
23
14
400.345
14.3906 400.345
99.498
-387.784
0.00
-250.00
0.000 -29.322
20 LTWR
19
29
100.717
29.3223 100.717
49.323
-87.813
-50.00
50.00
0.000 -115.521
15 RTWR
31
165.365 115
115.521 165.365
71.246 149.230
50.00
209.00
0.000 -36.266
57 SPARE
15
36
169.659
36.2659 169.647
-136.783 100.352
1.00
1.00
0.000 -36.266
57 SPARE
15
36
169.659
36.2659 169.647
-136.783 100.352
1.00
1.00
0.000 -36.266
57 SPARE
15
36
169.659
36.2659 169.647
-136.783 100.352
1.00
1.00
0.000 -36.266
57 SPARE
15
36
169.659
36.2659 169.647
-136.783 100.352
1.00
1.00
0.000 -36.266
57 SPARE
15
36
169.659
36.2659 169.647
-136.783 100.352
1.00
1.00
*****CALCUL ANGLE OF SLAL CL VS X AXIS DEG USING LEFT/RIGHT MARKERS*****
RM DEG= 143.037 RM RAD= 2.496
LM RAD= 0.625
LM DEG= 35.794
RM DIST= 164.968
LM DIST=169.868
DEG= 35.761
INVTAN= 0.624
TAN= 0.720
-0.033
*****SLALOM CL VS X-AXIS DEG=
*****CALCUL COORDINATES OF LEFT ENDGATE CENTER******
99.352
Y0=
-137.784
X0=
DIFF RAD=
1.872
INSTRUCTIONS: Place two markers were you want the boat center line (approx 25-30M off shore).
The left marker will start the entry/exit gate (Critical).
The right marker is just for alingment (Not necessary the exit gate).
F9 calculates all the required angles/distance and errors/fix.
The calculated Xo distance is how far down the baseline the left marker is located.
The calculated Yo distance is how far out the left marker is off the baseline.
The calculated slalom centerline vs X baseline axis degree: Angle is from the left side of baseline (angle of boat path to baseline).
Fix=Left/Right of the waterperson when looking directly at the transit from behind the buoy(not necessary up and down the course).
Fix=Towards/Away is the distance that the waterperson needs to go when looking directly at the transit from buoy.
Slalom Check List: (Required for TC Report)
1) Tournament name/Code of Competition (AWSA sanction # 15S120R)/Site
Code/GPS #for Site/Type of Tournament (Nat’l/International)/Rounds #/ Cash
Prize Tournament or not.
2) Boat Manufacture
3) Speed Control Manufacture/software version.
4) Arrangement for checking skies (no longer required for safety to check)
5) Verified slalom ropes and tournament handles
6) Arrangement for checking skiers handles w 44#
7) Slalom timing (All buoy) , Speed Control mapped.
8) Judges towers arrangement correct
9) Gate Video display and recording
10)Boat Video Transmitting and recording
11)EC Video display correct and recording
12)Slalom Course (type)
13)Slalom course is within tolerance and survey within 90 days
14)Slalom buoy size are correct and visible in sun/shade
RECORDS- Slalom
General Module covered some basic for records, listed below are specific to Slalom
Records
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Measure handle/rope
Verify boat path is good, prior to submitting.
EC Video of last 2 passes only
Boat Video for last 2 passes for Elite (MM/OM/OW)
Entry Video for last 2 passes for Elite (MM/OM/OW)
Survey
Record application complete
Email TC Chairmen(s)
Upload all data to a file on Adrive, Verify everything is uploaded
and notify TC Chairmen(s) that files have been uploaded.
SLALOM NATL RECORD – BOAT PATH VERIFICATION
All slalom record boat path are examined using a Video Overlay Program developed by Bob Corson (Slalom Record
Checker).
1) An End Course Video (electronic/digital file recommended) is required with the Entry/Exit gate (with min exit gate
1/6 of screen, 1/3 recommended), buoy/boat level in the video, and captured at 30fps; record application and the
survey are required. The EC video is required for all passes, but only the last 2 passes will be examined.
2) The boat C/L is based on the 4 entry/exit gate buoys from the survey data.
3) Load the AVI (EC video) and select starting frame when the boat is at the gates and the last frame when the boat is
exiting the gates.
4) Capture approximately 482 to 508 frames for a completed pass.
Example would be for 34.2mph @30 fps = 508 frames are captured. 36mph @30fps=482 frames are captured.
5)The boat path (pylon) is examined when the skier is approximately 4 meters in front of the turn buoy to he/she is at
the turn buoy.
6) Approximately 9 frames/sample points are taken at the turn buoy (approx. 0.5 m apart) to determine the
maximum deviation. These all are dependent on the line length and boat speed.
7) These all are dependent on the line length and boat speed.
8) Maximum deviation at any buoy is 20cm (8 inches).
9) Plus (+) means that the boat is towards the turn buoy;
Negative (-) means that the boat is away from the turn buoy.
10) The Total cumulative deviation (algebraic sum of the individual deviations) is based on the score as identified in
table of the rule book. Example: Score 3 buoy
#1 deviation =+18cm; #2 deviation = -10cm; #3 deviation = -2cm;
Total cum dev = +6 (Allowed for score of 3 is +35cm).
11) Boat Position- The following is an example to where the boat is when measuring the deviation. Again, all is
dependent on line length and boat speed. The program determines the position based on selecting the line length,
the starting and stop position on the entry/exit gates. The following example is not exact distance.
34mph/41off: Boat Position#1 sample (first) = 0.5m in front of boat guide.
Boat Position#9 sample (last) = 3.5m after boat guide.
30mph/38off: Boat Position#1 sample (first) = 0.5m after the boat guide.
Boat Position#9 sample (last) = 4.5m after boat guide.
Wakeup, this completes the SLALOM Section

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