+1 on #2 (Make sure what you connect it the other end to is strong enough. We had an old Morgan steer like crazy because the entire hull was flexing! We had to glass in a lot of extra stiffening)
I read somewhere about a linear drive that ripped itself off the mounting shelf. These things generate quite a bit of power. Marek From: Della Barba, Joe via CnC-List Sent: Wednesday, September 7, 2016 09:58 To: cnc-list@cnc-list.com Cc: Della Barba, Joe Subject: Re: Stus-List Octopus on a Landfall 38 When I used to install them I would make a mount that was in the same plane as the rudder quadrant. This made the motion of the drive in the horizontal plane only. This is IMHO best if you have the room. We would get an aluminum plate fabricated that would bolt onto the rudder quadrant if there was no room for an additional steering arm for the pilot, which was usually the case. It never hurts to do some prototyping and see if you can just hold the thing in place and run it through the range of motion it will need. You can hook the power leads to a battery or just leave it turned off and allow the helm to drag it back and forth. The solenoid should bypass the cylinder when not powered on. Two more hints: 1. Make SURE the autopilot limit is programmed so it can’t hit the rudder stops. This can usually be programed in when you set it up. 2. Make sure what you connect it the other end to is strong enough. We had an old Morgan steer like crazy because the entire hull was flexing! We had to glass in a lot of extra stiffening. Joe Coquina From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Richard N. Bush via CnC-List Sent: Wednesday, September 07, 2016 08:55 To: cnc-list@cnc-list.com Cc: Richard N. Bush Subject: Re: Stus-List Octopus on a Landfall 38 I can speak to this...although I have a 37, not a Landfall 38, the issues which Fred addresses are the same; pinched stern and zero wiggle room below decks...are the same; it was tough getting ours to fit and took several attempts and placements before we finally settled on a location; on my boat the octopus drive sits in the stern area, just aft of the quarter berth and on a slant (I believe the technical term is cattywampus) which doesn't look like it will match at all with the radial drive; but once adjusted, it does a marvelous job and steers true! It's a lot of effort but with it not to have the mechanism on the wheel. Richard s/v Bushmark4; C&C 37 CB; Ohio River, Mile 584.4 Richard N. Bush 2950 Breckenridge Lane, Suite Nine Louisville, Kentucky 40220-1462 502-584-7255 -----Original Message----- From: Frederick G Street via CnC-List <cnc-list@cnc-list.com> To: cnc-list <cnc-list@cnc-list.com> Cc: Frederick G Street <f...@postaudio.net> Sent: Wed, Sep 7, 2016 8:07 am Subject: Re: Stus-List Octopus on a Landfall 38 Paul — regardless of tiller arm or radial drive (NOT quadrant — thanks, Chuck Gilchrest! :^), the geometry of the drive to the rudder post is the same: you need to mount the drive pin X inches from the center of the rudder post. So the angle through which the drive has to rotate is the same. The biggest issue with the Octopus drive on the Landfall 38 (besides the fact that there's no room around the steering area) is the fact that the rod that Octopus uses as the ram actually extends out past the mounting base when the drive is retracted, which limits the mounting locations as the stern pinches in so much on the LF38. The 1212LAM12 (or the version with the remote pump, the 1212LAR12) would be my choice, as well; I’ve been looking at this issue of below-deck drives for my boat for years, and I really like the Octopus drives. I’ve sold several to people on the list; I just haven’t gotten around to doing it myself. :^) Anyway, the geometry is fine for the Octopus drive, if you can find the room, along with a mechanically-inclined very small person with very long arms to do the install… — Fred Fred Street -- Minneapolis S/V Oceanis (1979 C&C Landfall 38) -- Bayfield, WI This list is supported by the generous donations of our members. If you like what we do, please help us pay for our costs by donating. All Contributions are greatly appreciated!
_______________________________________________ This list is supported by the generous donations of our members. If you like what we do, please help us pay for our costs by donating. All Contributions are greatly appreciated!
