Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 05-01-2012, 05:25   #1
Marine Service Provider
 
niel12's Avatar

Join Date: Apr 2011
Location: Jeffreysbay
Boat: 365 Dean Catamaran
Posts: 249
Carbon or Aluminium Mast ?

There's a whole lot of good reasons why one should use a carbon mast i just wonder what the downside is? or is it all the way!
__________________

__________________
niel12 is offline   Reply With Quote
Old 05-01-2012, 05:26   #2
Senior Cruiser
 
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,702
Images: 122
Re: Carbon or aluminium mast?

Quote:
Originally Posted by niel12 View Post
There's a whole lot of good reasons why one should use a carbon mast i just wonder what the downside is?
$$$$$$$$$$$$$$$$$
__________________

__________________
Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
A nation of sheep breeds a government of wolves!

Unprepared boaters, end up as floatsum!.......
delmarrey is offline   Reply With Quote
Old 05-01-2012, 05:48   #3
Do… or do not
 
s/v Jedi's Avatar

Cruisers Forum Supporter

Join Date: Feb 2009
Location: in paradise
Boat: Sundeer 64
Posts: 9,198
Cost and potential lightning damage. I am also wary for UV damage although I never heard of a case.

cheers,
Nick.
__________________
s/v Jedi is offline   Reply With Quote
Old 06-01-2012, 18:13   #4
Registered User
 
Dragon Lady's Avatar

Join Date: Mar 2010
Location: Sydney Australia
Boat: Lavezzi 40, Pourpre
Posts: 949
Re: Carbon or aluminium mast?

Carbon fibre has very little impact resistance, it can crack and be undectable to the human eye. If an aircraft carbon fibre component recieves and impact it must be tested to check for cracking.
Carbon rigs have almost instananious reponse to wind gusts so are great in a race boat but I'm not sure you want that in a cruiser.
Metal fittings will also corrode when put in contact with carbon fibre.
To get the most out of carbon fibre it must be cooked at high pressures and temperatures in an autoclave which costs even more dollars.
Carbon fibre use is growing especially in the aerospace industry where it's high strenghth to weight ratio is highly benificial.
As for UV damage from the sun I have never seen carbon fibre components that are unpainted on external surfaces of aircraft, but you see it all the time on boats.
Also due to the high demand in the areospace industry any carbon fibre used in marine or automotive aplications is almost certainly reject or time expired aerospace stock.
So it’s good stuff if you can afford it.
I hope that answers some of your question.
__________________
Dragon Lady is offline   Reply With Quote
Old 06-01-2012, 19:11   #5
Senior Cruiser
 
Randyonr3's Avatar

Cruisers Forum Supporter

Join Date: Nov 2007
Boat: Beneteau FIRST 42
Posts: 1,836
Re: Carbon or aluminium mast?

there are a good number of carbon fiber masts in production on boats, both race and cruise.. a good look as you walk throu a marina will often show a "unstayed mast.. chances are, its carbon fiber.. saw an older ketch a while with unstayed carbon masts.. and most Cat Boats have Carbon fiber masts..
They have been around a good number of years but often undetectable due to being painted.. a friend of ours has one on his boat and swears buy it.. unlike an aluminium stayed mast, the unstayed carbon mast will "unload" in an unforseen blow, saving the boat from a "knock-down" the tapered top will bend out and dump the unwanted air where an aluminium stayed mast will not..
__________________
Randyonr3 is offline   Reply With Quote
Old 06-01-2012, 19:18   #6
Senior Cruiser
 
maxingout's Avatar

Cruisers Forum Supporter

Join Date: Dec 2006
Location: Fort Pierce, Phoenix
Boat: Privilege 39 Catamaran, Exit Only
Posts: 2,606
Re: Carbon or aluminium mast?

I would not have it on a cruising boat because of lightning strkes. When I was in Singapore, five yachts were struck with lightning within a single week. I would hate being in a thunderstorm worrying about my mast being vaporized by a lightning strike.
__________________
Dave -Sailing Vessel Exit Only

http://SailingUNI.com
http://maxingout.com
http://PositiveThinkingSailor.com
maxingout is offline   Reply With Quote
Old 06-01-2012, 20:22   #7
Senior Cruiser
 
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,702
Images: 122
Re: Carbon or aluminium mast?

Quote:
Originally Posted by maxingout View Post
I would not have it on a cruising boat because of lightning strkes. When I was in Singapore, five yachts were struck with lightning within a single week. I would hate being in a thunderstorm worrying about my mast being vaporized by a lightning strike.
Were you saying they all had carbon masts???
__________________
Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
A nation of sheep breeds a government of wolves!

Unprepared boaters, end up as floatsum!.......
delmarrey is offline   Reply With Quote
Old 06-01-2012, 20:43   #8
Registered User
 
ozskipper's Avatar

Join Date: Aug 2010
Location: NSW Australia
Boat: Traditional 30
Posts: 1,981
Re: Carbon or aluminium mast?

I dont think the cost vs benefit weighs up for a cruising boat. Unless you're going to add high performance sails to the equation (added cost compared to good old dacron). Then whats next? Cutting the toothbrushes in half to save weight? lol.

Cruisers carry so much extra weight that weight saving for the sake of carbon would only make a very very very slight difference to performance imho. Those extra dollars spent getting a point of percent extra speed could be much better used on other toys.

Obviously,as other people mentioned, it may fall off a bit earlier in a puff, but that is about the only real benefit I can see for a cruiser.

((I would spend the money on beer, good times and women-then waste the rest ;-) ))
__________________
Cheers
Oz
...............
ozskipper is offline   Reply With Quote
Old 06-01-2012, 23:21   #9
Senior Cruiser
 
maxingout's Avatar

Cruisers Forum Supporter

Join Date: Dec 2006
Location: Fort Pierce, Phoenix
Boat: Privilege 39 Catamaran, Exit Only
Posts: 2,606
Re: Carbon or aluminium mast?

Quote:
Originally Posted by delmarrey View Post
Were you saying they all had carbon masts???
They did not have carbon masts, and the masts survived of course. My point was that FIVE MASTS WERE STRUCK WITHIN 1 WEEK in our small cluster of cruising yachts heading north through the Malacca Straits at the beginning of monsoon. If those masts had been carbon fiber, the masts would likely have been history, and the cruisers would have had a real problem replacing the masts. Cruising season would be over for them unless they planned to push on in power boat mode using only their engine. I have known of 2 yachts with carbon fiber masts in which the masts were destroyed by lightning. I would not want to be cruising in the massive thunderstorms of the monsoon with a carbon fiber mast.
__________________
Dave -Sailing Vessel Exit Only

http://SailingUNI.com
http://maxingout.com
http://PositiveThinkingSailor.com
maxingout is offline   Reply With Quote
Old 06-01-2012, 23:45   #10
Eternal Member
 
wolfenzee's Avatar

Join Date: Feb 2008
Location: Port Ludlow, WA (NW corner of Puget Sound)
Boat: 30' William Atkin cutter
Posts: 1,496
Send a message via ICQ to wolfenzee
Re: Carbon or aluminium mast?

I am quite happy wth my wood mast 47' cambered and taper, 3piece laminated Sitka spruce. Strong and flexible also eliminates electrolysis problems with rigging. Not to mention less of a lightning rod.
__________________
"It is better to die living than live dieing" (Tolstoy para-phrased by Jimmy Buffet)
"Those who think they know everything piss off those of us who do"
wolfenzee is offline   Reply With Quote
Old 07-01-2012, 05:16   #11
Do… or do not
 
s/v Jedi's Avatar

Cruisers Forum Supporter

Join Date: Feb 2009
Location: in paradise
Boat: Sundeer 64
Posts: 9,198
Quote:
Originally Posted by wolfenzee
I am quite happy wth my wood mast 47' cambered and taper, 3piece laminated Sitka spruce. Strong and flexible also eliminates electrolysis problems with rigging. Not to mention less of a lightning rod.
Have you ever seen a wooden mast hit by lightning? Pray you're not around when it happens, because it is violent and dangerous. Wooden masts can use a lightning rod more than an alumunium mast. There is no statistic showing that wooden masts are skipped by lightning more often than other masts.

cheers,
Nick.
__________________
s/v Jedi is offline   Reply With Quote
Old 07-01-2012, 10:01   #12
Senior Cruiser
 
delmarrey's Avatar

Cruisers Forum Supporter

Join Date: Mar 2003
Location: Now in Blaine, WA
Boat: Modified Choate 40
Posts: 10,702
Images: 122
Re: Carbon or aluminium mast?

Quote:
Originally Posted by s/v Jedi View Post
Have you ever seen a wooden mast hit by lightning? Pray you're not around when it happens, because it is violent and dangerous. Wooden masts can use a lightning rod more than an alumunium mast. There is no statistic showing that wooden masts are skipped by lightning more often than other masts.

cheers,
Nick.
Yep! trees hit by lightning - Google Search
__________________
Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful! ........
A nation of sheep breeds a government of wolves!

Unprepared boaters, end up as floatsum!.......
delmarrey is offline   Reply With Quote
Old 09-01-2012, 13:58   #13
pbr
Registered User

Join Date: Jan 2009
Posts: 186
Re: Carbon or aluminium mast?

Carbon saves about 1/3 of the weight which can reduce pitch and roll in a cruising boat. In my experience, carbon masts dont seem as susceptable to lightining hits as aluminum. I have over a dozen on boats I have rigged and over twenty years never heard of one being hit.
__________________
pbr is offline   Reply With Quote
Old 09-01-2012, 14:08   #14
Eternal Member
 
wolfenzee's Avatar

Join Date: Feb 2008
Location: Port Ludlow, WA (NW corner of Puget Sound)
Boat: 30' William Atkin cutter
Posts: 1,496
Send a message via ICQ to wolfenzee
Re: Carbon or aluminium mast?

Quote:
Originally Posted by delmarrey View Post
I never wen masts were impervious to lightning....just metal conducts electricity better. Regardless of that point I prefer the materiel for a mast
__________________
"It is better to die living than live dieing" (Tolstoy para-phrased by Jimmy Buffet)
"Those who think they know everything piss off those of us who do"
wolfenzee is offline   Reply With Quote
Old 09-01-2012, 14:21   #15
Registered User

Join Date: Jan 2009
Location: Holland, France
Boat: 33ft sloop
Posts: 1,091
Images: 5
Re: Carbon or aluminium mast?

Quote:
Originally Posted by s/v Jedi View Post
Cost and potential lightning damage. I am also wary for UV damage although I never heard of a case.

cheers,
Nick.
Vraag het Jan Jongert! No good!

Carbon has a tendency to give in on that particular moment that you could not calculate. Some masts work for years others break down at first sail.
Carbon has no tell-tales. It brakes and when it can leave bad marks. On you and your ship alike. They are light and stiff. It is the stiffness that attract the racers. Next to that, a carbon mast needs to have a special environment to make. The curing process as well as the matrix materials are utterly important. It seldom pays, save for yachts like Mirabella. Or TP/52' s and boardracers. For a regular boat it is not needed.
__________________

__________________
MacG is offline   Reply With Quote
Reply

Tags
mast

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
Installing Mast Boot with No Mast Collar ? MikeTurner Deck hardware: Rigging, Sails & Hoisting 1 12-10-2011 09:40
Anatomy of a Stuck Pump Face Seal - Carbon Side sdowney717 Engines and Propulsion Systems 6 30-09-2011 17:20
Mast Down on Ranger 23 sarafina Deck hardware: Rigging, Sails & Hoisting 2 06-09-2011 22:44
Aluminium Mast Manufacturer in USA mfleury Deck hardware: Rigging, Sails & Hoisting 3 05-09-2011 21:45
Mast Came Down, Must Repair Acedude Construction, Maintenance & Refit 7 30-08-2011 14:01



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 06:17.


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.