My club has adopted an average lap format for its wednesday evening series, to try to reduce the occurrence of slow boats being disadvantaged as the wind inevitably dies.
However, after the first race last night we hit a snag. Even though its a handicap race, some boats of the same class ended up going round for an extra lap by virtue of being in the lead at the time. The only prob with this is that the wind, as predicted died and so the guy who should have won ended up coming almost last.
So, is there a clever way of forcing sailwave to score a competitor who has done more laps automatically higher than another sailing the same class who did fewer laps, even though the corrected times dictate otherwise.
Hope that makes sense.
Chris
(Draycote Water)
I don’t think that Sailwave can be juggled to cope with this.
I would think that it should be a race management judgement call - the RO should signal `shorten course’ while there’s still sufficient wind for the leading boat of a class to complete a lap and for most of the rest to be able to finish that lap. All boats of the same class should sail the same no. of laps.
regards,
Malcolm Osborne
Sedgefield, South Africa
···
----- Original Message -----
From:
chris
To: sailwave@yahoogroups.com
Sent: Thursday, March 31, 2011 8:04 PM
Subject: [sailwave] Average lap format
My club has adopted an average lap format for its wednesday evening series, to try to reduce the occurrence of slow boats being disadvantaged as the wind inevitably dies.
However, after the first race last night we hit a snag. Even though its a handicap race, some boats of the same class ended up going round for an extra lap by virtue of being in the lead at the time. The only prob with this is that the wind, as predicted died and so the guy who should have won ended up coming almost last.
So, is there a clever way of forcing sailwave to score a competitor who has done more laps automatically higher than another sailing the same class who did fewer laps, even though the corrected times dictate otherwise.
Hope that makes sense.
Chris
(Draycote Water)
There is, but the formula is not available in SW.
The problem occurs very often for races ending close to sunset.
The boats have to finish the last lap after the fixed time within reasonable limits. (n laps)
1. You record all times a boat rounds the finish mark
2. You take the entire number of laps sailed before the finish time (n-1)
3. You add a fraction of a lap, as (finish time - time(n-1)) / (time(n) - time(n-1))
4. You may define a time limit according to the lap length, this could be 5 times the lap length divided by the normal boat speed. When no lap is finished before this limit, the decimal part becomes .000
5. If you prefer, you multiply the n.nnn value by the lap length to show a distance.
6. You may also reduce the result to an average time per lap, this is quite easy to enter in SW
Note that Excel allows to calculate this results, you should link a second worksheet to produce result in CSV-format for import in SW
Phil
···
----- Original Message ----- From: "chris" <cgandy@tiscali.co.uk>
To: <sailwave@yahoogroups.com>
Sent: Thursday, March 31, 2011 8:04 PM
Subject: [sailwave] Average lap format
My club has adopted an average lap format for its wednesday evening series, to try to reduce the occurrence of slow boats being disadvantaged as the wind inevitably dies.
However, after the first race last night we hit a snag. Even though its a handicap race, some boats of the same class ended up going round for an extra lap by virtue of being in the lead at the time. The only prob with this is that the wind, as predicted died and so the guy who should have won ended up coming almost last.
So, is there a clever way of forcing sailwave to score a competitor who has done more laps automatically higher than another sailing the same class who did fewer laps, even though the corrected times dictate otherwise.
Hope that makes sense.
Chris
(Draycote Water)
------------------------------------
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Hi Chris
Our sailing club has had this problem ( we don't actually use Sailwave - Yet ) If it is a handicap then the race Officer should finish the race on the leading boat nearest the hour. We sometimes finish where the most number of boats are finishing nearest the hour if the wind conditions look like prevailing.
Regards
Pete UWSC
···
From: sailwave@yahoogroups.com [mailto:sailwave@yahoogroups.com] On Behalf Of chris
Sent: 31 March 2011 19:05
To: sailwave@yahoogroups.com
Subject:
[sailwave] Average lap format
My club has adopted an average lap format for its wednesday evening series, to try to reduce the occurrence of slow boats being disadvantaged as the wind inevitably dies.
However, after the first race last night we hit a snag. Even though its a handicap race, some boats of the same class ended up going round for an extra lap by virtue of being in the lead at the time. The only prob with this is that the wind, as predicted died and so the guy who should have won ended up coming almost last.
So, is there a clever way of forcing sailwave to score a competitor who has done more laps automatically higher than another sailing the same class who did fewer laps, even though the corrected times dictate otherwise.
Hope that makes sense.
Chris
(Draycote Water)
We adapted lap scoring for our Twilight Racing on Wednesday Evenings for the same reason quoted in the original blog, falling wind pressure. We set either a triangle or windward leeward, short course with the start finish in the middle of the windward beat and every competitor has to sail through the start-finish line to have their lap & time recorded. The race time is either 1.25 or 1.5 hours and at the end of the time the recorded times and laps are entered in Sailwave and handicaps applied. We have a mixture of trailer yachts and keelboats and the range of laps can be anything from 1for slower boats to 6 for fast boats which are averaged in Sailwave before the handicap is applied. This format is very popular and is also used for our Winter sailing series.
Cheers
Wayne Nolan
Christchurch NZ
···
On 1 April 2011 11:36, Philippe DE TROY philippe@detroy.org wrote:
There is, but the formula is not available in SW.
The problem occurs very often for races ending close to sunset.
The boats have to finish the last lap after the fixed time within reasonable
limits. (n laps)
- You record all times a boat rounds the finish mark
- You take the entire number of laps sailed before the finish time (n-1)
- You add a fraction of a lap, as (finish time - time(n-1)) / (time(n) -
time(n-1))
- You may define a time limit according to the lap length, this could be 5
times the lap length divided by the normal boat speed. When no lap is
finished before this limit, the decimal part becomes .000
- If you prefer, you multiply the n.nnn value by the lap length to show a
distance.
- You may also reduce the result to an average time per lap, this is quite
easy to enter in SW
Note that Excel allows to calculate this results, you should link a second
worksheet to produce result in CSV-format for import in SW
Phil
----- Original Message -----
From: “chris” cgandy@tiscali.co.uk
To: sailwave@yahoogroups.com
Sent: Thursday, March 31, 2011 8:04 PM
Subject: [sailwave] Average lap format
My club has adopted an average lap format for its wednesday evening
series, to try to reduce the occurrence of slow boats being disadvantaged
as the wind inevitably dies.
However, after the first race last night we hit a snag. Even though its a
handicap race, some boats of the same class ended up going round for an
extra lap by virtue of being in the lead at the time. The only prob with
this is that the wind, as predicted died and so the guy who should have
won ended up coming almost last.
So, is there a clever way of forcing sailwave to score a competitor who
has done more laps automatically higher than another sailing the same
class who did fewer laps, even though the corrected times dictate
otherwise.
Hope that makes sense.
Chris
(Draycote Water)
-!- http://www.yachtsandyachting.com/ -!- http://www.sailing.org/ -!-
http://www.sailwave.com/ -!- On-Line Sailwave
help…http://sailwave.com/help/HTML ~ Mark Townsend’s Sailwave User Guide
is available from http://www.abyc.org/upload/Sailwave_ABYC_User_Guide.pdf
~ Convert to daily digest of emails send blank email to
sailwave-digest@yahoogroups.com ~ To unsubscribe from the SUG please send
blank email to sailwave-unsubscribe@yahoogroups.com Yahoo! Groups Links