Viper 640 PHRF

Started by Jason Hyerstay, April 19, 2011, 07:55:18 PM

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Doug Mroz

APPEAL APPEAL APPEAL!!! Be relentless. We had to do that here in PHRF MA and finally got the viper rating changed. I had to be relentless/border line pain in the a-- to make head way. You have to understand most PHRF organizations are made up of volunteers. They will not do anything unless you make a big enough stink about it. They will gladly take your money tho when it comes time to renew. Keep that in mind and keep appealing/writing emails. You want them to be so sick of you they finally change it just so you will stop.

Jason Hyerstay

#91
I compiled a matrix from the 2016 US Sailing PHRF Book that just came out, with Melges 24, Viper 640, VX One, Rocket 22, and Melges 20 all compared to the J/70.

Let me know if you see any mistakes. I hope this helps!

Edit: Updated with newest version of the file:

http://lcyc.info/files/PHRF%20Sportboat%20Matrix.pdf
Jason Hyerstay - Streetwise - Viper 640 #195 - Lake Champlain Yacht Club, Shelburne, Vermont, USA, https://lcyc.info

John Leyland

Hey Jason,

Just for reference, BC Sailing does a standard base rating and then applies credits or penalties so in OD trim we rate 108 with a 9 second credit for having an outboard vs. the Melges 24 at 99.  We don't have any J70's or Melges 20's.

Cheers,
John
Viper 191 - "Moistened Bint"
Vancouver, BC

John Leyland

I've also taken a look at the Sports Boat Measurement System (SMS) used by the Australian Sports Boat Association.  It has the Viper at 0.778 and a Melges at 0.800 which near as I can figure out is about 15 seconds/mile difference.  The J70 is 0.726 and VX One is 0.771.

See http://www.asba.org.au/current-sms-ratings/
Viper 191 - "Moistened Bint"
Vancouver, BC

Tim Carter

Sounds like 70's are much faster Down Under than they are here??   Gravity difference??  LOL
Lt Coast Gov

John Leyland

What's interesting is the rule is for sport boats between 5.8m and 8.5m that have a minimum rating (Time Correction Factor) of 0.755 and J70's do not rate high enough under the rule but have been allowed.  The VX One apparently has to add an extension to meet minimum length.
Viper 191 - "Moistened Bint"
Vancouver, BC

Jason Hyerstay

We did scoring on both SMS and PHRF for about three years, but stopped. The sample size for J/70s in Australia is too small for a reliable rating, IMO. PHRF is just easier and I'm on our PHRF committee, so we have pretty reasonable sportboat ratings.
Jason Hyerstay - Streetwise - Viper 640 #195 - Lake Champlain Yacht Club, Shelburne, Vermont, USA, https://lcyc.info