RE: [Cal_Boats] More rudder talk please (Dave)

Was there a difference in size? Mine is wider. I am worried it will stall. RandyCal 2 29 Out Patient Channel Islands Ca Sent on a Sprint Samsung Galaxy Note® 3 From: "david dobbs tm… [at] yahoo.com [Cal_Boats]" <Ca… [at] yahoogroups.com> Date: 08/04/2015 1:18 PM (GMT-08:00) To: Ca… [at] yahoogroups.com Subject: RE: [Cal_Boats] More rudder talk please Chris,When I ordered a rudder Foss sent me an elliptical, and it's an improvement. The 29 and 31 rudders are very similar so better ask which one they make for your 31.David Dobbs, Cal 29 411 Sent from Yahoo Mail for iPad On Aug 3, 2015, 5:28:24 PM, 'Charlie Husar' hu… [at] gmail.com [Cal_Boats] wrote: Chris, the Foss in CA makes the older model rudders. I’ve bought two for CAL 25s, and have been pleased with the products. I paid about $900 for each one which included shipping (cross country). I am guessing you are in the $1200-1300 range. Do not know about ellipicals for your model boat. The CAL 25s do not allow them as a one design. Is you present rudder warped in any way? I reskinning might do it. Take CareCharlieAnnapolis From: Ca… [at] yahoogroups.com [mailto:Ca… [at] yahoogroups.com] Sent: Monday, August 03, 2015 7:25 PM To: Ca… [at] yahoogroups.com Subject: [Cal_Boats] More rudder talk pleaseHello all, My Cal 31 is on the hard for scheduled bottom paint etc. nd what do you know........ the rudder has cracks in it. The yard sanded them to get a better look and it does not look good. They are horizontal which is strange to me.I am in the market for a new rudder.I have heard talk of Foss rudders but when I Google them, I get 2 companies. One in Florida and one in Cali. I am sorry if this topic has been covered recently but I would like to hear about dealings with either of these companies. Also: Any cost estimates?ThanksChrisPoulsbo, WACal31

Randy, I noticed no difference in the rudder thickness. As for the aspect ratio (mean chord : length) of the two rudders, I made some quick drawing measurements and the math shows: Elliptical: 1:3 Original: 1:3.35 The area of the elliptical rudder is ~ 16.5% greater than the original. The above results are estimates only. I really don't know what that is telling me, other than there will be some performance differences. Reading up on this stuff seems to tell me that a higher aspect is preferred for reaching, elliptical rudders are better for downwind or motoring, and more surface area means more drag. I found nothing in the PHRF Schell Regression Formula that takes rudder metrics into account. The reason I bought the elliptical rudder in the first place was because of the existing mold for it. There was no mold for the original. Michael Sent from Yahoo Mail on Android From:"saylorran sa… [at] yahoo.com [Cal_Boats]" <Ca… [at] yahoogroups.com> Date:Tue, Aug 4, 2015 at 6:35 PM Subject:RE: [Cal_Boats] More rudder talk please (Dave) Was there a difference in size? Mine is wider. I am worried it will stall. Randy Cal 2 29 Out Patient Channel Islands Ca Sent on a Sprint Samsung Galaxy Note® 3 From: "david dobbs tm… [at] yahoo.com [Cal_Boats]" <Ca… [at] yahoogroups.com> Date: 08/04/2015 1:18 PM (GMT-08:00) To: Ca… [at] yahoogroups.com Subject: RE: [Cal_Boats] More rudder talk please Chris, When I ordered a rudder Foss sent me an elliptical, and it's an improvement. The 29 and 31 rudders are very similar so better ask which one they make for your 31. David Dobbs, Cal 29 411 Sent from Yahoo Mail for iPad On Aug 3, 2015, 5:28:24 PM, 'Charlie Husar' hu… [at] gmail.com [Cal_Boats] wrote: Chris, the Foss in CA makes the older model rudders. I’ve bought two for CAL 25s, and have been pleased with the products. I paid about $900 for each one which included shipping (cross country). I am guessing you are in the $1200-1300 range. Do not know about ellipicals for your model boat. The CAL 25s do not allow them as a one design. Is you present rudder warped in any way? I reskinning might do it. Take Care Charlie Annapolis From: Ca… [at] yahoogroups.com [mailto:Ca… [at] yahoogroups.com] Sent: Monday, August 03, 2015 7:25 PM To: Ca… [at] yahoogroups.com Subject: [Cal_Boats] More rudder talk please Hello all, My Cal 31 is on the hard for scheduled bottom paint etc. nd what do you know........ the rudder has cracks in it. The yard sanded them to get a better look and it does not look good. They are horizontal which is strange to me. I am in the market for a new rudder. I have heard talk of Foss rudders but when I Google them, I get 2 companies. One in Florida and one in Cali. I am sorry if this topic has been covered recently but I would like to hear about dealings with either of these companies. Also: Any cost estimates? Thanks Chris Poulsbo, WA Cal31