two blade folding

Do all cal 29 sailboats back poorly? I have a 2 blade folding prop. and the boat has no control in reverse.My boat has an atomic 4 and tiller steering.Has any one tried the indigo marine 3 blade prop? HELP!!!

Friend of mine put the Indigo 3-blade on his Catalina 30. Made a big difference in backing performance, better acceleration and less prop walk. He has an Atomic 4 and tiller also. td From: Ca… [at] yahoogroups.com on behalf of glen thorpe Sent: Mon 7/21/2008 12:46 AM To: Ca… [at] yahoogroups.com Subject: [Cal_Boats] two blade folding Do all cal 29 sailboats back poorly? I have a 2 blade folding prop. and the boat has no control in reverse.My boat has an atomic 4 and tiller steering.Has any one tried the indigo marine 3 blade prop? HELP!!! DISCLAIMER: Important Notice ************************************************* This e-mail may contain information that is confidential, privileged or otherwise protected from disclosure. If you are not an intended recipient of this e-mail, do not duplicate or redistribute it by any means. Please delete it and any attachments and notify the sender that you have received it in error. Unintended recipients are prohibited from taking action on the basis of information in this e-mail.E-mail messages may contain computer viruses or other defects, may not be accurately replicated on other systems, or may be intercepted, deleted or interfered with without the knowledge of the sender or the intended recipient. If you are not comfortable with the risks associated with e-mail messages, you may decide not to use e-mail to communicate with IPC. IPC reserves the right, to the extent and under circumstances permitted by applicable law, to retain, monitor and intercept e-mail messages to and from its systems.

--- In Ca… [at] yahoogroups.com, "Downing, Thomas" <Thomas.Downing@...> wrote: > > Friend of mine put the Indigo 3-blade on his > Catalina 30. Made a big difference in backing > performance, better acceleration and less prop > walk. He has an Atomic 4 and tiller also. > > td HELP!!! Any fixed blade prop will back better than a folding prop. Maybe the prop is not opening fully. We went for a sunset sail Saturday evening. Because I had all neophytes aboard, I put the main up in the slip. When we backed out of the slip, which is normally an upwind slip at Cabrillo Marina, the wind was coming down the channel and abeam of us. The main wasn't out far enough to luff, because the boom had to clear the concrete post the supports the dock. As a result, the bow swung the wrong way and I had to back out of the channel about 200 yards before we could get to a point where I had room to turn around. I was backing the Cal 40 with a breeze about 5 to 7 knots pushing the main the wrong way. The two blade Martec prop backed us out against the wind, and against the main's push, with no trouble. Mike Kennedy Conquest Cal 40 # 96 > > > > >

Mike Kennedy wrote - Any fixed blade prop will back better than a folding prop. SNIP - Not true. The Gori props I sell are 2 and 3 blade folding, and out perform a fixed prop in ahead AND astern, due to their large blade area. The 3 blade Gori has a deeper pitch in astern than in ahead, resulting in outstanding performance. They also can be operated in "overdive" in ahead, with the boat at hull speed, and lowered engine rpm. This saves fuel, and wear and tear on the engine and entire drive train. Joe DeMers Sound Marine Diesel LLC www.soundmarinediesel.com

--- In Ca… [at] yahoogroups.com, "Joe DeMers" <jedsail@...> wrote: > > Mike Kennedy wrote - > > Any fixed blade prop will back better than a folding prop. > > SNIP - > > Not true. The Gori props I sell are 2 and 3 blade folding, and out perform a > fixed prop in ahead AND astern, due to their large blade area. OK. The most common racing props are Martec and Gori and a couple of others have been designed to avoid the Martec's problems. Still, I think any fixed prop the same size will back better than a folding prop. My point was that I have never had a problem with the Martec backing. Besides, the last time I looked at a Gori prop it was feathering and not folding. Am I misrememberng ? Mike Kennedy Conqest Cal 40 # 96 > >

--- In Ca… [at] yahoogroups.com, "mtkennedy1" <mtkennedy1@...> wrote: > > --- In Ca… [at] yahoogroups.com, "Joe DeMers" <jedsail@> wrote: > > > > Mike Kennedy wrote - > > > > Any fixed blade prop will back better than a folding prop. > > > > SNIP - > > > > Not true. The Gori props I sell are 2 and 3 blade folding, and out > perform a > > fixed prop in ahead AND astern, due to their large blade area. > > OK. The most common racing props are Martec and Gori and a couple of > others have been designed to avoid the Martec's problems. Still, I > think any fixed prop the same size will back better than a folding > prop. My point was that I have never had a problem with the Martec > backing. Besides, the last time I looked at a Gori prop it was > feathering and not folding. Am I misrememberng ? I looked at the Gori site and it is folding. I was thinking of another prop. Mike Kennedy Conqest Cal 40 # 96 > > > > > >

Gori props cost more than my boat, they better back up! --- On Mon, 7/21/08, mtkennedy1 <mt… [at] cox.net> wrote: From: mtkennedy1 <mt… [at] cox.net> Subject: [Cal_Boats] Re: two blade folding To: Ca… [at] yahoogroups.com Date: Monday, July 21, 2008, 8:05 AM --- In Cal_Boats@yahoogrou ps.com, "mtkennedy1" <mtkennedy1@ ...> wrote: > > --- In Cal_Boats@yahoogrou ps.com, "Joe DeMers" <jedsail@> wrote: > > > > Mike Kennedy wrote - > > > > Any fixed blade prop will back better than a folding prop. > > > > SNIP - > > > > Not true. The Gori props I sell are 2 and 3 blade folding, and out > perform a > > fixed prop in ahead AND astern, due to their large blade area. > > OK. The most common racing props are Martec and Gori and a couple of > others have been designed to avoid the Martec's problems. Still, I > think any fixed prop the same size will back better than a folding > prop. My point was that I have never had a problem with the Martec > backing. Besides, the last time I looked at a Gori prop it was > feathering and not folding. Am I misrememberng ? I looked at the Gori site and it is folding. I was thinking of another prop. Mike Kennedy Conqest Cal 40 # 96 > > > > > >

I'll second Joe's opinion on the Gori.... We've had a 2 blade Gori on our Cal 29 for about a year now, it backs extremely straight. We had crazy prop-walk with the fixed blade that came on our boat. The Gori is slightly different diameter and pitch than the old fixed (13x9 now vs 12x12). I saw a martec 2 blade on a boat at the yard the other day and from what I can tell, the Gori is also WAY better built, very solid. The blades swing with each other using gear teeth at the pivot point. The Gori IS expensive, but in my opinion you get what you pay for. Richard Anderson Cal 2-29 On Jul 21, 2008, at 8:05 AM, mtkennedy1 wrote: > --- In Ca… [at] yahoogroups.com, "mtkennedy1" <mtkennedy1@...> wrote: > > > > --- In Ca… [at] yahoogroups.com, "Joe DeMers" <jedsail@> wrote: > > > > > > Mike Kennedy wrote - > > > > > > Any fixed blade prop will back better than a folding prop. > > > > > > SNIP - > > > > > > Not true. The Gori props I sell are 2 and 3 blade folding, and out > > perform a > > > fixed prop in ahead AND astern, due to their large blade area. > > > > OK. The most common racing props are Martec and Gori and a couple of > > others have been designed to avoid the Martec's problems. Still, I > > think any fixed prop the same size will back better than a folding > > prop. My point was that I have never had a problem with the Martec > > backing. Besides, the last time I looked at a Gori prop it was > > feathering and not folding. Am I misrememberng ? > > I looked at the Gori site and it is folding. I was thinking of another > prop. > > Mike Kennedy > Conqest Cal 40 # 96 > > > > > > > > > > > > > >

The Gori¹s do fold, and are amazing. I have a Flex-O-Fold (geared folder) that has wonderful thrust in reverse and significantly less prop walk than my fixed prop did. I also re-sized to a 15X13 from a 12X12, so that certainly helped. I believe that the mass of the blades makes a huge difference. Wilkie From: mtkennedy1 <mt… [at] cox.net> Reply-To: <Ca… [at] yahoogroups.com> Date: Mon, 21 Jul 2008 15:01:14 -0000 To: <Ca… [at] yahoogroups.com> Subject: [Cal_Boats] Re: two blade folding --- In Ca… [at] yahoogroups.com <mailto:Cal_Boats%40yahoogroups.com> , "Joe DeMers" <jedsail@...> wrote: > > Mike Kennedy wrote - > > Any fixed blade prop will back better than a folding prop. > > SNIP - > > Not true. The Gori props I sell are 2 and 3 blade folding, and out perform a > fixed prop in ahead AND astern, due to their large blade area. OK. The most common racing props are Martec and Gori and a couple of others have been designed to avoid the Martec's problems. Still, I think any fixed prop the same size will back better than a folding prop. My point was that I have never had a problem with the Martec backing. Besides, the last time I looked at a Gori prop it was feathering and not folding. Am I misrememberng ? Mike Kennedy Conqest Cal 40 # 96 > >

You just have to visualize the reverse as a thruster pushing the stern to port. Once you get the hang of it you can really navigate in and out of some really tight places providing you do not have to go straight back in the wind. Good luck PS get upwind slip! ----- Original Message ----- From: glen thorpe To: Ca… [at] yahoogroups.com Sent: Sunday, July 20, 2008 9:46 PM Subject: [Cal_Boats] two blade folding Do all cal 29 sailboats back poorly? I have a 2 blade folding prop. and the boat has no control in reverse.My boat has an atomic 4 and tiller steering.Has any one tried the indigo marine 3 blade prop? HELP!!! __________ Information from ESET NOD32 Antivirus, version of virus signature database 3284 (20080721) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com

Glenn, Welcome to the list and please tell us where you are located? You are reffering to prop walk. All props walk the stern one way or the other. I have a 2 bladed Martec and Atomic 4 as well. I like to get the boat moving in reverse and then slip it into neutral to correct the walk. I have backed my boat down long fairways and the people always ask me how I can do it. It really works and others have tried it and agree to it. Randy Cal 2-29 Out Patient Channel Islands Ca --- On Sun, 7/20/08, glen thorpe <gl… [at] yahoo.com> wrote: From: glen thorpe <gl… [at] yahoo.com> Subject: [Cal_Boats] two blade folding To: Ca… [at] yahoogroups.com Date: Sunday, July 20, 2008, 11:46 PM Do all cal 29 sailboats back poorly? I have a 2 blade folding prop. and the boat has no control in reverse.My boat has an atomic 4 and tiller steering.Has any one tried the indigo marine 3 blade prop? HELP!!!

I am from Marina del Rey California. This is my second Cal (my first was a Cal 25). I appreciate your advice on the prop walk issue, I will give your technique a try. --- On Mon, 7/21/08, Randy Alcorn <sa… [at] yahoo.com> wrote: From: Randy Alcorn <sa… [at] yahoo.com> Subject: Re: [Cal_Boats] two blade folding To: Ca… [at] yahoogroups.com Date: Monday, July 21, 2008, 9:26 PM Glenn, Welcome to the list and please tell us where you are located? You are reffering to prop walk. All props walk the stern one way or the other. I have a 2 bladed Martec and Atomic 4 as well. I like to get the boat moving in reverse and then slip it into neutral to correct the walk. I have backed my boat down long fairways and the people always ask me how I can do it. It really works and others have tried it and agree to it. Randy Cal 2-29 Out Patient Channel Islands Ca --- On Sun, 7/20/08, glen thorpe <glenhove2@yahoo. com> wrote: From: glen thorpe <glenhove2@yahoo. com> Subject: [Cal_Boats] two blade folding To: Cal_Boats@yahoogrou ps.com Date: Sunday, July 20, 2008, 11:46 PM Do all cal 29 sailboats back poorly? I have a 2 blade folding prop. and the boat has no control in reverse.My boat has an atomic 4 and tiller steering.Has any one tried the indigo marine 3 blade prop? HELP!!!