This past weekend I scored a regatta and Sailwave v.2.00, build 3, seems to have calculated incorrect US Portmsouth Yardstick corrected times. I can't figure out how or why, but the errors seem consistent across platforms and SW versions. The errors caused wrong places for each race and wrong total scores.
We had 87 boats in 9 fleets -- 6 one-design fleets (places only), 2 PHRF TOT (16 boats) and one Portsmouth (3 boats, 420, FJ & Laser, using DPN ratings). The RC gave us elapsed times for the USPN fleet.
Setup time was limited, as we had to download entrants from a Regatta Network file after registration closed, before importing into Sailwave. (There was also a mapping problem to fix.)
The USPN formula is CT = ET/HC * 100. DPNs are 420: 97.7, FJ: 98.0, Laser: 91.1. Sailwave seems to have calculated CTs with ratings of 420: 85.6-86.0, FJ: 85.7, Laser: 84.8.
I've gone through the results, audited them and compared with an Excel spreadsheet, which yields different (correct) CTs. I don't understand what's going on. Any hints?
-rt_/)
Worth checking that the elapsed times are shown correctly in Sailwave?
Also that Sailwave thinks that the results are elapsed times?
You could put upload the .blw to the Files section so we could look at it, too.
HTH
Mike
Lancing SC
We had 87 boats in 9 fleets -- 6 one-design fleets (places only), 2 PHRF TOT (16 boats) and one Portsmouth (3 boats, 420, FJ & Laser, using DPN ratings). The RC gave us elapsed times for the USPN fleet.
Setup time was limited, as we had to download entrants from a Regatta Network file after registration closed, before importing into Sailwave. (There was also a mapping problem to fix.)
The USPN formula is CT = ET/HC * 100. DPNs are 420: 97.7, FJ: 98.0, Laser: 91.1. Sailwave seems to have calculated CTs with ratings of 420: 85.6-86.0, FJ: 85.7, Laser: 84.8.
I've gone through the results, audited them and compared with an Excel spreadsheet, which yields different (correct) CTs. I don't understand what's going on. Any hints?
-rt_/)
Thanks, Mike. I think I've figured out what went wrong. In downloading the competitors file, I didn't precviously notice that there was no field for Portsmouth h'cap; the numbers showed up in the PHRF TOT field. I believe Sailwave was applying the PHRFTOT formula (with its A & B factors) instead of the USPN formula. That would have a huge effect on time correcitons.
Lesson for the future: When you have both Portsmouth & PHRF TOT fleets, make sure you have the right h'caps in the right fields.
-rt_/)
--- In sailwave@yahoogroups.com, "fairwindrt" <fairwindrt@> wrote:
>
> We had 87 boats in 9 fleets -- 6 one-design fleets (places only), 2 PHRF TOT (16 boats) and one Portsmouth (3 boats, 420, FJ & Laser, using DPN ratings). The RC gave us elapsed times for the USPN fleet.
>
> Setup time was limited, as we had to download entrants from a Regatta Network file after registration closed, before importing into Sailwave. (There was also a mapping problem to fix.)
>
> The USPN formula is CT = ET/HC * 100. DPNs are 420: 97.7, FJ: 98.0, Laser: 91.1. Sailwave seems to have calculated CTs with ratings of 420: 85.6-86.0, FJ: 85.7, Laser: 84.8.
>
> I've gone through the results, audited them and compared with an Excel spreadsheet, which yields different (correct) CTs. I don't understand what's going on. Any hints?
> -rt_/)
>
Worth checking that the elapsed times are shown correctly in Sailwave?
Also that Sailwave thinks that the results are elapsed times?
You could put upload the .blw to the Files section so we could look at it, too.
HTH
Mike
Lancing SC