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Zero feedback steering?

Posted: Fri Jan 04, 2008 2:59 pm
by RickJ
I'm thinking I may need to get a new steering unit for my '97 :macx:. I've been reading the previous threads, and am leaning towards the Uflex Rotech (sold as Ultraflex in the UK).

However, I'm not sure of the benefits (or otherwise) of a zero feedback version. I can see the advantages of being able to leave the helm and know it's going to stay where you left it, but are there any downsides? I know it would prevent use of an autopilot operating directly on the rudder linkage, but that's not on my wish-list :!:

I've also seen varying recommendations on optimum cable length, with 10' seeming to be the most popular. The units on sale over here seem to start at 3.5 or 4 mtr minimum (11'8" or 13'4") - are longer lengths likely to be a problem? I guess preventing it dangling down in the berth space is the biggest issue.

Any thoughts welcome.

Cheers
Rick

Posted: Fri Jan 04, 2008 3:17 pm
by James V
You may have some problems because of the motor size.

I like the extra play it allows me some leadway on any jerking on the stering system.

Posted: Fri Jan 04, 2008 4:45 pm
by Compromise
I just replaced my old 'X' steering rack and cable with the 'M' rack and pinion steering. To date I'm very pleased with it.
Cable length is 10 feet. Original 'X'length is 8ft I believe.
I don't worry about cramping the rear birth as we don't use it for sleeping. Mainly a catch all!

zero feedback

Posted: Fri Jan 04, 2008 5:10 pm
by waltpm
How big a job was it to replace the 97 x steering with the M steering.

Posted: Fri Jan 04, 2008 5:23 pm
by nedmiller
Hi Rick,
We have zero feedback steering that was put in by the P.O. so we have never sailed a Mac without it. We had sailed another kind of boat before that didn't have wheel steering and really like the feedback that the tiller constantly gave us. With the zero feedback steering system, you really do get ZERO feedback from the wheel. I constantly oversteered at first and still do more zigzagging than I think I should. Perhaps if I had learned to control the Mac with regular steering first it would have been easier. That's the only disadvantage to me.
You also cannot turn the wheel with the motor or rudders. Ours is so strong that even with the motor up and attached, it stays exactly where you put it. It is, therefore, great for setting a course and then popping into the cabin to get a soda. If conditions are constant, it's like an auto pilot! We often just lay in the cockpit without holding the wheel. Even with minor changes in wind, you only have to touch the wheel once in a while. When we had the boat with the tiller, someone had to hold on to it every minute! I didn't like that at all... but sailing in gusty winds sure was easier!
Ned

Posted: Sat Jan 05, 2008 1:52 am
by RickJ
James V wrote:You may have some problems because of the motor size.
Hi James - I'm not clear how or why the motor size affects things. I take it you mean as in "large size" not "small size" :?:

Cheers

Posted: Sat Jan 05, 2008 7:44 am
by Highlander
I have the No feed back twin rack syatem on my boat one cable to each the rudders & one to the eng. I sail with the eng. conected , in the down possition because the big hydro foil on the eng acts as a second winged C/B , anyway its works great almost like an auto pilot once you have set a coarse you can just sit back & relax, steer with the sails ! it holds its own coarse you do loose the feed back from the rudders but I'm not racing & you soon learn to feel the boats movement better ! & learn how to adjust to each his own ! , on the bigger boats with the huge wheel I dont think they get that much feed back !! Eric !!!! would know for sure, not sure their is with hydraulic systems either !!

J.

Posted: Sat Jan 05, 2008 9:30 am
by James V
The stearing system on a M is put on thousands of power boats and the play is built in. I was wondering if somebody has any info on this.

Re: zero feedback

Posted: Sat Jan 05, 2008 10:49 am
by Compromise
waltpm wrote:How big a job was it to replace the 97 x steering with the M steering.
Ours is an '02. I don't think the steering is any different than the previous boats other than the rudder brackets being stainless steel.
Not a big job at all. Equal to changing out the original system!

Posted: Sat Jan 05, 2008 11:00 am
by kmclemore
Wow. So much to learn.

I thought zero-feedback steering was when the captain didn't yell at people.

Posted: Sat Jan 05, 2008 1:02 pm
by James V
I thought that it was an autopilot.

Re: zero feedback

Posted: Sun Jan 06, 2008 3:18 am
by RickJ
Compromise wrote:
waltpm wrote:How big a job was it to replace the 97 x steering with the M steering.
Ours is an '02. I don't think the steering is any different than the previous boats other than the rudder brackets being stainless steel.
Not a big job at all. Equal to changing out the original system!
The X steering was upgraded on the '98 (I think) model to a rack unit. This involved making the console taller to accomodate. On these boats you can easily swap in the M steering, but on 96-97 boats there's no room. You have to stick with a "hub-style" helm unit.

From other posts it seems the Uflex Rotech can be fitted as a direct replacement, and has a high-quality multi-gear system in the hub. Search the board for "Uflex".

Cheers. Rick

Posted: Sun Jan 06, 2008 5:13 am
by RickJ
OK, I give up :x

How do you get the steering wheel off :?:

It's the original chrome 16" wheel ('97 X), the hub has a black plastic cover that looks as though it should prise off, but even hammering a knife in under the edges won't shift it. Even after that I'm not sure how you get the wheel off the helm shaft.

Or should I just cut my losses, saw if off, and get a nice new wheel as well :?: :)

Posted: Sun Jan 06, 2008 5:39 am
by Catigale
Look around the edge for a setscrew that holds it in, otherwise you just snap it off. Use a piece of wood to prevent marring.

Posted: Sun Jan 06, 2008 7:23 am
by beene
otherwise you just snap it off.
I don't think I like the sounds of that. :|

G