Red server Race 2 - Cancel Explanation - euphoria vs DZArg

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euphoria
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Red server Race 2 - Cancel Explanation - euphoria vs DZArg

Post by euphoria »

Submission Type: C

1. Your registered Boat Name: euphoria

2. Race Day: 3

3, Group: Red

4. Race: 2

5. Time: 19.29

6. Rule(s) applicable: 10 and 16.1

7. Boat(s) involved: euphoria and DZ Arg

8. Description:
I tack to pass on port ahead of DZ Arg near the mark.
He luffs around the mark and hits me.
If he did not luff, I would have passed ahead of him with no problem.

Please pay attention to the following detail with time references from my attached replay:
From 19:27.80 to 19:29.39 DZ Arg is luffing slowly as much as 5.9 degrees!
Without this luff, it would not have been a tight situation.
While he luffed, it was too late for me to go the other way without creating a collision with my stern.
Even with his initial luff, if he held his course after, I could have avoided contact, if necessary by swinging my stern.
From my replay he is breaking rule 16.1 because he didn't give me room to keep clear.
When he finally luffed hard around the mark, there was nothing I could do.
The initial luff of 5.9 degrees is not an avoiding action, hence 16.1 applies and case 50 is not applicable.

How to know the exact size of luff?
By placing the camera in the editor directly behind the boat with both the stern and mast in the center of the screen.
Max FOV (10) to find the angle as accurate as possible.
Zooming in and out to confirm center position and direction of the camera.
See the two screens below, showing the luff was from Yaw 46.30 to 40.35:

DZ Arg 1.png
DZ Arg 1.png (532.07 KiB) Viewed 2037 times
DZ Arg 2.png
DZ Arg 2.png (439.35 KiB) Viewed 2037 times

9. Print Screen attached: N/A

10. Replay attached (recommended):
MLS 13-8.Replay.Gbx
(3.07 MiB) Downloaded 249 times

Here the replay with camera added to read the heading:
MLS 13-8 Details.Replay.Gbx
(3.07 MiB) Downloaded 257 times
Toppen
Posts: 629
Joined: Tue Oct 16, 2018 1:02 pm

Re: Red server Race 2 - Cancel Explanation - euphoria vs DZArg

Post by Toppen »

Facts :
Euphoria was clear ahead and leeward of DZ near topmark
Euphoria tacked from starboard to port in front of DZ after passing the layline (end of his tack at 19:29:10)
DZ luffed slowly at 19:27:80 until 19:29:30, then luffed hardly for trying to pass between Euphoria and topmark
There was a contact between both boat at 19:30:40 and Euphoria received RRS10 from DZ
Euphoria asked to cancel, DZ accepted and protested against Euphoria
No penalty turn done

Conclusion :
Euphoria would have kept clear if DZ had held his course
DZ changed his course hardly, and should be DSQ for breaking RRS16.1

MLS Protest Committee
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