Thanks Gary. My RSA gives +6 for a fixed two-blade prop, and other guys in my club think a folding prop is worth even more than that. There's at least one RSA (NCPHRF I think) that gives +12.
Thanks also for the info on the mast step. I'll go with three cross-members if I can, while still getting a pump into that sump and not covering up a keel bolt. Otherwise two non-rotting, non-deflecting cross-members made out of fiberglass board, and properly designed and installed, ought to be better than the original setup, and certainly better than my current two cross-members. Cheers, Randy ----- Original Message ----- From: "Gary Nylander via CnC-List" <cnc-list@cnc-list.com> To: "cnc-list" <cnc-list@cnc-list.com> Cc: "Gary Nylander" <gnylan...@atlanticbb.net> Sent: Sunday, November 13, 2016 1:11:26 PM Subject: Re: Stus-List Propeller Our PHRF rules give you 3 seconds/mile for a fixed prop. I didn’t think that was enough, so went with a flex-o-fold. On the mast step, I have three cross members under the oak block (which looks just like yours) but do not have that big oak block assembly at all. I think some previous owner built that thing to make up for the lack of support and the fact that the fiberglass guys at the factory didn’t seal the bottom of the cross members, which do a great job of wicking up any stray water in the bilge. Gary #593 From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of RANDY via CnC-List Sent: Saturday, November 12, 2016 11:38 AM To: cnc-list <cnc-list@cnc-list.com> Cc: RANDY <randy.staff...@comcast.net>; Robert Gallagher <trys...@gmail.com> Subject: Re: Stus-List Propeller Thank you Rob. The primary use of my boat is club racing on a relatively small lake. Generally I only motor ten minutes to get out of the marina, and ten minutes to get back in, a couple times a week. No cruising, no punching through chop. For me right now the most important thing is making the boat as fast as possible - minimizing weight, minimizing drag, maximizing (sail) power, etc. My competitors in my PHRF fleet all have folding props, so I need to level that playing field :) Cheers, Randy ----- Original Message ----- From: "Robert Gallagher via CnC-List" < cnc-list@cnc-list.com > To: "cnc-list" < cnc-list@cnc-list.com > Cc: "Robert Gallagher" < trys...@gmail.com > Sent: Saturday, November 12, 2016 8:41:06 AM Subject: Re: Stus-List Propeller JMHO.... The best all around prop for the 30MI with an A-4. http://www.atomic4.com/propeller.html If you are a hard core racer, this might not be the prop for you. Otherwise, this will yield easier docking, more punch through a chop, higher RPM (good for the engine in many ways), higher causing speed, all while still providing reduced drag under sail. Sorry if that sounds like a sales pitch but I was so impressed by that little prop that I talk it up every chance I get. Just be very careful about using it without a zinc. They tell you that if you go zinc less there will be no barnacle growth on the prop. If you end up in a 'hot' marina the prop will act as your zinc...they replaced my prop but now they have more detailed warranty with regards to this. Good Luck, Rob 88 30MKIII Hamunam _______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated! _______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
_______________________________________________ This list is supported by the generous donations of our members. If you wish to make a contribution to offset our costs, please go to: https://www.paypal.me/stumurray All Contributions are greatly appreciated!
