Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 14-01-2015, 07:49   #16
Moderator
 
weavis's Avatar

Cruisers Forum Supporter

Join Date: Feb 2014
Location: SEVILLE - MALLORCA
Posts: 10,140
Send a message via Skype™ to weavis
Re: Bow thruster on a catamaran, really?

Quote:
Originally Posted by 2Hulls View Post
If I was the buyer and that was the only difference, I think I'd opt for the non-thruster cat. Then I wouldn't have to defend it whenever asked why in the world did I have such a thing.

They are more defensible on bloated beasts, but then again, so are granite counter tops....

2 Hulls Dave
Quote:
Originally Posted by Group9 View Post
Why a bow thruster on anything?

In my marina, I watch commercial fishermen move huge single engine fishing trawlers maneuver around like they are cars in parking lots without any problems at all from crosswinds.

As mean as it sounds, the need for just about any bow thruster can be negated with superior boat handling skills (and, I say that not having a bow thruster on my 42 sailboat and wishing I did on some days).
Your both absolutely correct.
However part time sailors dont or cant take the time to learn good skills. For the rest of us even knowing the maintenance issues, Its still nice to have the added push or pull on miserable windy days in an enclosed area.

Truth be told? I would buy the one with the thruster......
In my defence, I would not get granite worktops........
__________________

__________________
- Never test how deep the water is with both feet -
10% of conflicts are due to different opinions. 90% by the tone of voice.
Raise your words, not your voice. It is rain that grows flowers, not thunder.
weavis is offline   Reply With Quote
Old 14-01-2015, 07:57   #17
Registered User

Join Date: Apr 2013
Posts: 4,881
Re: Bow thruster on a catamaran, really?

Check out the yards and you will see lots of power boats with big inboards that also have bow thrusters.

As long as you don't become overly reliant on it, it's a nice toy.
__________________

__________________
valhalla360 is offline   Reply With Quote
Old 14-01-2015, 08:46   #18
Registered User
 
Rubikoop's Avatar

Join Date: Feb 2007
Location: St Thomas USVI
Boat: Freedom Express 39 cat ketch
Posts: 751
Re: Bow thruster on a catamaran, really?

I was on a FP cat that had 2 bow thrusters, one in each hull, tied to a single control so they worked together.


Sent from my iPhone using Cruisers Sailing Forum
__________________
Rubikoop is offline   Reply With Quote
Old 14-01-2015, 08:51   #19
Registered User
 
tomfl's Avatar

Join Date: Apr 2012
Location: Florida
Boat: Seawind 1000xl
Posts: 1,959
Images: 10
Re: Bow thruster on a catamaran, really?

I tend to start my analysis by trying to get a good feel for what an owner will be using a boat for and then selecting a boat to meet those needs.

A boat an owner wants to cruise in the Bahamas only anchoring out would be unlikely to need bow thrusters while an arm chair admiral who has a slip in a marina with narrow approach with lots of traffic might make more use of bow thrusters. I know many cruisers who never or almost never have their boat in a slip, and are able to pick an idea wind and current if they do dock. Bow thrusters would not be a realistic option for them.

I also have to wonder just how much a bow thruster would help a part time unskilled skipper. Bow thrusters are not fool proof and they are making better fools every day.

Sent from my SM-G900V using Cruisers Sailing Forum mobile app
__________________
tomfl is offline   Reply With Quote
Old 14-01-2015, 08:54   #20
Registered User
 
ryon's Avatar

Join Date: Feb 2013
Location: Southern California
Posts: 588
Re: Bow thruster on a catamaran, really?

Quote:
Originally Posted by Rubikoop View Post
I was on a FP cat that had 2 bow thrusters, one in each hull, tied to a single control so they worked together.
But did it have bidets in all three heads?
__________________
ryon is offline   Reply With Quote
Old 14-01-2015, 11:01   #21
Registered User
 
Rubikoop's Avatar

Join Date: Feb 2007
Location: St Thomas USVI
Boat: Freedom Express 39 cat ketch
Posts: 751
Re: Bow thruster on a catamaran, really?

No and I think I recall it having 5 heads. The head in the crew quarters might have been removed or was just buried under supplies leaving a mere 4 heads for 5 persons.


Sent from my iPhone using Cruisers Sailing Forum
__________________
Rubikoop is offline   Reply With Quote
Old 19-01-2015, 13:16   #22
Registered User

Join Date: Mar 2013
Boat: 45' CC ketch
Posts: 332
Re: Bow thruster on a catamaran, really?

I know a 50' cat owner who insisted on bow thruster when the boat was built. And he is not an inexperienced cruiser. They already did one extended circumnavigation on their previous cat. Go figure.
__________________
Sea Frog is offline   Reply With Quote
Old 19-01-2015, 13:44   #23
Moderator Emeritus
 
David M's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: San Francisco Bay
Boat: research vessel
Posts: 10,152
Re: Bow thruster on a catamaran, really?

With twin screws and a BT, you can go sideways or pull the vessel laterally.

I used to hold offshore supply vessels alongside oil rigs with twin screws and a BT. This could not be done if it was a single screw with a BT or a twin screw without a BT.

Many passenger vessels have twin azipods with a BT or twin screws with a BT. This does not mean the operators are amateurs. It does mean the ship is more maneuverable in docking situations and can also eliminate the cost of hiring one or two tugs, depending.
__________________
David

Life begins where land ends.
David M is offline   Reply With Quote
Old 19-01-2015, 15:10   #24
Registered User
 
tomfl's Avatar

Join Date: Apr 2012
Location: Florida
Boat: Seawind 1000xl
Posts: 1,959
Images: 10
Re: Bow thruster on a catamaran, really?

The question isn't does a bow thruster make a boat more manageable, rather is the added weight, power requirements, required maintenance, cost, ect a reasonable trade off for what a bow thruster brings. If you only sail afternoons or weekends and have to move your boat sideways thrusters may make sense. If you are cruising from anchorage and only dock once every couple of years for a haul out and bottom job the boat bucks may be better spent elsewhere.

Sent from my SM-G900V using Cruisers Sailing Forum mobile app
__________________
tomfl is offline   Reply With Quote
Old 19-01-2015, 15:44   #25
Registered User
 
FamilyVan's Avatar

Join Date: Nov 2014
Posts: 1,779
Re: Bow thruster on a catamaran, really?

Quote:
Originally Posted by David M View Post
With twin screws and a BT, you can go sideways or pull the vessel laterally.

I used to hold offshore supply vessels alongside oil rigs with twin screws and a BT. This could not be done if it was a single screw with a BT or a twin screw without a BT.

Many passenger vessels have twin azipods with a BT or twin screws with a BT. This does not mean the operators are amateurs. It does mean the ship is more maneuverable in docking situations and can also eliminate the cost of hiring one or two tugs, depending.
Absolutely. I like having options. Cats are pretty maneuverable, but Cats are even more maneuverable with thrusters. I'll take Hamilton Jets and a thruster- provided some one else is paying (install and maintenance).

Many of these big Cats are so expensive, they aren't really for the do it yourself boaters, they are toys for people with deep pockets. If your dropping a $1 000 000 on a toy, why not drop $1 015 000 on a toy you don't look like a dufus docking.
__________________
FamilyVan is offline   Reply With Quote
Old 19-01-2015, 20:32   #26
TOT
Registered User
 
TOT's Avatar

Join Date: Jul 2013
Location: Singapore
Boat: Lagoon 450
Posts: 273
Re: Bow thruster on a catamaran, really?

Mmmm if you put bow thrusters on a +50 ft monohull power boat with twin screws, nobody says a word, put them on a cat and look what happens....

Strange world...
__________________
TOT Team
TOT is offline   Reply With Quote
Old 19-01-2015, 20:38   #27
Registered User

Join Date: Sep 2009
Location: Mackay,QLD, Australia
Boat: planning a approx 45ft cat
Posts: 3,651
Images: 3
Re: Bow thruster on a catamaran, really?

Mate of mine has one on a Lagoon 440. Not because he wanted one but the vessel he purchased second hand had one fitted as well as a roller boom furling main. Life is tough sometimes.
__________________
downunder is offline   Reply With Quote
Old 19-01-2015, 22:55   #28
Registered User

Join Date: Jul 2013
Location: San Diego, CA
Posts: 3,157
Re: Bow thruster on a catamaran, really?

Quote:
Originally Posted by TOT View Post
Mmmm if you put bow thrusters on a +50 ft monohull power boat with twin screws, nobody says a word, put them on a cat and look what happens....

Strange world...
Yup.


Then they drag granite countertops and bidets into it as well!! Oh, the humanity!
__________________
socaldmax is offline   Reply With Quote
Old 19-01-2015, 22:57   #29
Moderator
 
weavis's Avatar

Cruisers Forum Supporter

Join Date: Feb 2014
Location: SEVILLE - MALLORCA
Posts: 10,140
Send a message via Skype™ to weavis
Re: Bow thruster on a catamaran, really?

Quote:
Originally Posted by socaldmax View Post
Yup.


Then they drag granite countertops and bidets into it as well!! Oh, the humanity!
OK........... you talked me into to it......... I will take all three.
__________________
- Never test how deep the water is with both feet -
10% of conflicts are due to different opinions. 90% by the tone of voice.
Raise your words, not your voice. It is rain that grows flowers, not thunder.
weavis is offline   Reply With Quote
Old 19-01-2015, 23:17   #30
Senior Cruiser
 
Jim Cate's Avatar

Cruisers Forum Supporter

Join Date: May 2008
Location: cruising SW Pacific
Boat: Jon Sayer 1-off 46 ft fract rig sloop strip plank in W Red Cedar
Posts: 11,465
Re: Bow thruster on a catamaran, really?

So, having never tried this out at all, what happens when you use a thruster where its outwash hits the other hull? Would that not tend to negate the desired net thrust somewhat?

Jim
__________________

__________________
Jim and Ann s/v Insatiable II , lying Port Cygnet, Tasmania once again
Jim Cate is online now   Reply With Quote
Reply

Tags
catamaran

Thread Tools
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
Bow Thruster bottleinamessage Propellers & Drive Systems 33 11-11-2011 02:21
Bow Thruster and/or Windlass Battery Type? S/V Illusion Electrical: Batteries, Generators & Solar 13 23-08-2009 17:29
Bow thruster lbarnes Propellers & Drive Systems 7 24-08-2008 08:10
Bow Thruster for CSY 44 Capt'n Harry Monohull Sailboats 7 04-09-2007 10:17
What No Bow Thruster Pura Vida Off Topic Forum 3 02-05-2007 19:23



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 20:06.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.