Cruisers Forum
 


Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on Cruisers Forums. Advertise Here
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 02-01-2022, 04:44   #1
Registered User

Join Date: Feb 2016
Location: Grenada, West Indies
Boat: Moody 47
Posts: 121
2 x electronic autopilots or one and a Hydrovane?

Hi all,

Boat we are interested in has 2 x electronic autopilots (1 x Raymarine and 1 x Cetrec) already installed, as well as hydraulic steering. Also has a semi skeg hung rudder.

If we get this boat we would be looking at doing a circumnavigation eventually and so want redundancy in the autopilot system etc .

Was thinking of buying a Hydrovane and fitting that, but been thinking with 2 x separate autopilot systems would I be bale to save a shed load of money by just buying a spare hydraulic pump to allow for a completely spare system.

Not too bothered about the power consumption argument as will look at solar panels as well as upgrading the battery bank anyway.

As for the spare rudder argument, would a Hydrovane really work in the event of rudder loss on a 47ft centre cockpit boat?

Thanks

DTD
davethedog is offline   Reply With Quote
Old 02-01-2022, 05:00   #2
Moderator Emeritus
 
tkeithlu's Avatar

Cruisers Forum Supporter

Join Date: Feb 2012
Location: Carrabelle, Florida
Boat: Fiberglas shattering 44' steel trawler
Posts: 6,084
Re: 2 x electronic autopilots or one and a Hydrovane?

OK, a hydrovane steers the boat independent of the rudder and the electrical system, so it is redundancy for both types of failure.

Then given a budget limit of some sort, is one of those two failures the next most likely OMG moments on a circumnavigation? If so, then it's a good investment, if not, put the money elsewhaere. It might be that upgrading the electrical sources, such as a backup genset or separate battery banks, would be better OMG insurance than having a hydrovane. It might be that a spare sail or taking a course in celestial navigation would be a better investment.

So, I suggest that you look not at just the steering, but the whole task, compare that with the money available, and if then a hydrovane is top of the list, proceed with it.
__________________
Never let anything mechanical know that you are in a hurry.
tkeithlu is offline   Reply With Quote
Old 04-01-2022, 09:06   #3
Registered User

Join Date: Feb 2016
Location: Grenada, West Indies
Boat: Moody 47
Posts: 121
Re: 2 x electronic autopilots or one and a Hydrovane?

Thanks for the reply, as will have plenty of solar panels, generator, upgraded alternator as well as a large AGM battery bank so am erring towards 2 x electronic (and totally separate) autopilots.

Can always see ow it goes for a bit then add a Hydrovane if needs be, but thinking whatever boat we go for next may be on the upper limit at 47ft.

DTD
davethedog is offline   Reply With Quote
Old 04-01-2022, 10:11   #4
Registered User

Join Date: Nov 2010
Location: BC
Boat: O'Day 40
Posts: 1,084
Re: 2 x electronic autopilots or one and a Hydrovane?

I wonder how often lightening strikes damage electrical systems and how often rudders fail?
__________________
Trying to make new mistakes.
bcboomer is offline   Reply With Quote
Old 04-01-2022, 10:51   #5
Registered User
 
sv_pelagia's Avatar

Join Date: Apr 2013
Location: British Columbia
Boat: Sceptre 41
Posts: 1,960
Re: 2 x electronic autopilots or one and a Hydrovane?

Quote:
Originally Posted by bcboomer View Post
I wonder how often lightening strikes damage electrical systems and how often rudders fail?
It only takes once....

We had partial failure of seals in our hydraulic steering ram (~20% remaining) in a gale.

Our Hydrovane could not deal with seas etc (it requires main rudder to be fixed in position).

Fortunately, our autopilot (with 20% ram) was able to keep us on course with bare poles for next 24 hrs (100+nm off Northern California).

(We were about to disconnect hydraulics and use emergency rudder - - not Hydrovane - - when we discovered enough working that autopilot could handle bare poles. l

S%@t happens.
sv_pelagia is offline   Reply With Quote
Reply

Tags
autopilot, hydrovane

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Two Autopilots vs One Autopilot and a Windvane? Sevi Auxiliary Equipment & Dinghy 44 26-10-2015 06:41
Crew Available: India to east, One woman, one set of wheels, one world ruby1984 Crew Archives 4 14-03-2014 03:43
Care and feeding of hydraulic autopilots Dockhead Marine Electronics 1 01-04-2011 07:43
MOB, Charplotters and Autopilots chala Health, Safety & Related Gear 11 13-04-2010 18:39
Autopilots and collisions Brent Swain Health, Safety & Related Gear 4 02-11-2006 06:09

Advertise Here


All times are GMT -7. The time now is 21:39.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.