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What failed that caused you to demast? #193020
10/09/09 09:22 AM
10/09/09 09:22 AM

A
andrewscott
Unregistered
andrewscott
Unregistered
A



I just read about someones bridal tang breaking off... wow.. thats hard to predict.

Got me thinking... maybe we could write up a list of reasons why people demast as a guide of items to inspect more often.
Of course this wont prevent failures in hard to see areas (like a stress crack in a bow tang) but it may help others.

I demasted 2 weeks ago with a beautiful blond on the wire. The cause... my steel ring on top of my furler blew out. I had noticed it had elongated, but failed to replace this $3.00 part.. luckily no other damage happened and a nice power boater towed me about 5 miles to shore...

-- Have You Seen This? --
Re: What failed that caused you to demast? [Re: ] #193022
10/09/09 09:36 AM
10/09/09 09:36 AM
Joined: May 2003
Posts: 4,451
West coast of Norway
Rolf_Nilsen Offline
Carpal Tunnel
Rolf_Nilsen  Offline
Carpal Tunnel

Joined: May 2003
Posts: 4,451
West coast of Norway
Safety splint on the pin holding the shroud went missing, even though it was taped.. 200kgs on the wire wire was lifted into the boat.

Re: What failed that caused you to demast? [Re: ] #193025
10/09/09 09:42 AM
10/09/09 09:42 AM
Joined: Jun 2001
Posts: 3,293
Long Beach, California
John Williams Offline
Carpal Tunnel
John Williams  Offline
Carpal Tunnel

Joined: Jun 2001
Posts: 3,293
Long Beach, California
I lost a shroud - it parted just inside the fitting at the base. It was clear that the aircraft fitting had retained some moisture there and even though the boat was rinsed after each regatta, there was corrosion going on where I couldn't easily see it. Mast came down in slo-mo on the way out the inlet at the Clearwater Sailing Center with a rushing incoming tide. I though I was hot snot for getting under the bridge in one tack without missing a step... kicked a field goal on the drifting boat back through the bridge and caught a reluctant fishing boat for the short tow back. Missed the whole regatta. My standing rigging was about three years old at the time.


John Williams

- The harder you practice, the luckier you get -
Gary Player, pro golfer

After watching Lionel Messi play, I realize I need to sail harder.
Re: What failed that caused you to demast? [Re: John Williams] #193028
10/09/09 09:45 AM
10/09/09 09:45 AM
Joined: Jan 2009
Posts: 5,525
pgp Offline
Carpal Tunnel
pgp  Offline
Carpal Tunnel

Joined: Jan 2009
Posts: 5,525
Old stuff. Put EVERYTHING on a two year replacement schedule.


Pete Pollard
Blade 702

'When you have a lot of things to do, it's best to get your nap out of the way first.

Re: What failed that caused you to demast? [Re: pgp] #193032
10/09/09 09:57 AM
10/09/09 09:57 AM
Joined: Dec 2005
Posts: 321
Albuquerque NM
Banzilla Offline
enthusiast
Banzilla  Offline
enthusiast

Joined: Dec 2005
Posts: 321
Albuquerque NM
We (Hobie fleet 48) have had 2 demastings on H18s this past sailing season. Both were when the shroud anchor pin bolt snapped. These boats are sailed maybe 2 to 3 times a month from Memorial Day into late October always in fresh water.


[b] Sail Like you have a Pair
Re: What failed that caused you to demast? [Re: Rolf_Nilsen] #193049
10/09/09 11:03 AM
10/09/09 11:03 AM
Joined: Aug 2007
Posts: 3,969
B
brucat Offline
Carpal Tunnel
brucat  Offline
Carpal Tunnel
B

Joined: Aug 2007
Posts: 3,969
Seriously Andrew? You need us to help you compile a list? Every component that is involved with keeping you mast vertical is also subject to failure. I've had (or seen others have) the following items break:

Bow tang
Wires
Clevis pins / ring dings
Through-hull anchors

Other than the mast hounds, that's all there is keeping a H16 mast vertical. So, I'd say it's ALL subject to failure. Each boat model will have its own list, since the components are slightly different, but the basic idea is, if it's a part that's involved in holding up the mast, expect that it will fail at some point and should be routinely inspected.

Mike

Re: What failed that caused you to demast? [Re: brucat] #193053
10/09/09 11:42 AM
10/09/09 11:42 AM

A
andrewscott
Unregistered
andrewscott
Unregistered
A



Originally Posted by brucat
Seriously Andrew? You need us to help you compile a list?


I thought of this more as a general discussion to help others, and newer sailors... not really a list for me but i did hope to learn a thing or 2 perhaps

Re: What failed that caused you to demast? [Re: ] #193056
10/09/09 11:51 AM
10/09/09 11:51 AM
Joined: Dec 2001
Posts: 5,590
Naples, FL
waterbug_wpb Offline
Carpal Tunnel
waterbug_wpb  Offline
Carpal Tunnel

Joined: Dec 2001
Posts: 5,590
Naples, FL
The hole that the shrouds attach to on the top of the mast stretched out almost to failure (saw a crack at the bottom). Didn't lose the mast, but could have it the weather was bad.

I noticed it at disassembly after retiring from Macho Man. We retired because our upper rudder pintle broke outside the inlet for the Clearwater Sailing Center (in the middle of an Opti race course, too). Turned out this part wasn't welded on both sides, and was prone to failure (looked like a clean, sudden break)

So, I guess the rudder sacrificed itself to save the mast?


Jay

Re: What failed that caused you to demast? [Re: ] #193057
10/09/09 11:52 AM
10/09/09 11:52 AM
Joined: Jul 2008
Posts: 129
Austin, TX
BoK Offline
member
BoK  Offline
member

Joined: Jul 2008
Posts: 129
Austin, TX
Andrew,
That was me you were talking about.

We didn't dismast... smile As a matter of fact, the mast is still up. I've got to get out and unstep it this afternoon.



Bo Kersey
Corsair 31-1D 276
Re: What failed that caused you to demast? [Re: BoK] #193060
10/09/09 11:57 AM
10/09/09 11:57 AM
Joined: Nov 2005
Posts: 1,203
uk
TEAMVMG Offline
veteran
TEAMVMG  Offline
veteran

Joined: Nov 2005
Posts: 1,203
uk
Some boats shackle the spinny block to the shoud base replacing the clevis pin with the shackle. Repeated use of the spinny sheet seems to slowly undo the shackle over time.

Common in Dragoons [and older Pacifics apparently]


Paul

teamvmg.weebly.com
Re: What failed that caused you to demast? [Re: waterbug_wpb] #193061
10/09/09 11:58 AM
10/09/09 11:58 AM

A
andrewscott
Unregistered
andrewscott
Unregistered
A



Originally Posted by waterbug_wpb
I noticed it at disassembly after retiring from Macho Man. We retired because our upper rudder pintle broke outside the inlet for the Clearwater Sailing Center (in the middle of an Opti race course, too).


Those opti's have no business being out in the gulf and in the clearwater / sand key pass... they take up the entire pass with 30 kids, and that pass can get insane waves and tides in different directions.

2 weeks ago the opt's stopped all traffic for 15 minutes in crazy tides while i was there.

This past Mini Machoman i crewed for Catman. we were trapped with a spin out and the opti chase boats cut us off accross our bow and bullhored us to get out of their race. We were not in their race and when we yelled "WE are in a race" they said BS!!!


Re: What failed that caused you to demast? [Re: ] #193064
10/09/09 12:02 PM
10/09/09 12:02 PM
Joined: Dec 2001
Posts: 5,590
Naples, FL
waterbug_wpb Offline
Carpal Tunnel
waterbug_wpb  Offline
Carpal Tunnel

Joined: Dec 2001
Posts: 5,590
Naples, FL
Originally Posted by andrewscott
we were trapped with a spin out and the opti chase boats cut us off accross our bow and bullhored us to get out of their race. We were not in their race and when we yelled "WE are in a race" they said BS!!!



I did about 5 macho man races when I owned my N20. I think 4 of those races ended up going through an Opti race course right there at the inlet. For the most part, they left us alone. Once the PRO boat drove up on us, but didn't give us a hard time because we ripped through one side of the course while the boats were on the other side...

Personally, I'm glad to see boats out there racing, and will gladly duck them if I think I'm going to be a problem on their course. Mainly, though, I'm happy to show off multi-speed for those guys, who I hope will eventually become multi-sailors...


Jay

Re: What failed that caused you to demast? [Re: ] #193070
10/09/09 12:11 PM
10/09/09 12:11 PM
Joined: Apr 2008
Posts: 921
Alachua, FL
Mugrace72 Offline
old hand
Mugrace72  Offline
old hand

Joined: Apr 2008
Posts: 921
Alachua, FL
Originally Posted by andrewscott

This past Mini Machoman i crewed for Catman. we were trapped with a spin out and the opti chase boats cut us off accross our bow and bullhored us to get out of their race. We were not in their race and when we yelled "WE are in a race" they said BS!!!


Same thing happened to us. They were really pricks about it. Their boats were at the other end of their course and we went across one corner of their area. Barbie told them to F-OFF which I think they did.


Jack Woehrle
Hobie Wave #100, Tiger Shark III
HCA-NA 5022-1
USSailing 654799E
Alachua FL/Put-In-Bay
Re: What failed that caused you to demast? [Re: Mugrace72] #193075
10/09/09 01:02 PM
10/09/09 01:02 PM
Joined: Aug 2007
Posts: 3,969
B
brucat Offline
Carpal Tunnel
brucat  Offline
Carpal Tunnel
B

Joined: Aug 2007
Posts: 3,969
Good point, I understand Andrew. All I really meant to say is, everything in the "system" is vulnerable. And, after reading some of the responses, there can be surprises, so this is a great thread.

As for the Optis... It's not the 30 Optis that you have to worry about, or even the 4-5 RC boats. It's the 20 coach/parent boats... Of course, with all those power boats available, surely someone offered to tow you in? wink

As someone who runs a lot of kid events, including Optis, I'm very surprised they wouldn't be taking them under tow through a narrow pass, especially with heavy current.

I can also tell you that we tend to be very protective of our racing circles, and you'd be amazed at what morons will do to a race course. "Look at all the cute boats..."

Mike

Re: What failed that caused you to demast? [Re: brucat] #193079
10/09/09 01:18 PM
10/09/09 01:18 PM
Joined: Sep 2005
Posts: 1,187
38.912, -95.37
_flatlander_ Offline
old hand
_flatlander_  Offline
old hand

Joined: Sep 2005
Posts: 1,187
38.912, -95.37
Quote
What failed that caused you to demast?
my wallet & brain grin ego and testosterone won out.


John H16, H14
Re: What failed that caused you to demast? [Re: Mugrace72] #193088
10/09/09 02:53 PM
10/09/09 02:53 PM
Joined: Nov 2005
Posts: 5,582
“an island in the Pacifi...
hobie1616 Offline
Carpal Tunnel
hobie1616  Offline
Carpal Tunnel

Joined: Nov 2005
Posts: 5,582
“an island in the Pacifi...
Broken shackle that was part of a Harken three sheeve block for an Aussie system.

Enlarged the hole in the block and used a Schaffer stamped steel shackle. Lasted ten years.


US Sail Level 2 Instructor
US Sail Level 3 Coach
Re: What failed that caused you to demast? [Re: hobie1616] #193095
10/09/09 04:27 PM
10/09/09 04:27 PM
Joined: Dec 2007
Posts: 1,430
california
F-18 5150 Offline
veteran
F-18 5150  Offline
veteran

Joined: Dec 2007
Posts: 1,430
california
H-18 shroud anchor pin thru hull lip. $16 part did $500 in damage.


Richard Vilvens
Brand Ambassador
PSA Capricorn USA
R.Vilvens@yahoo.com
Fairfield, Ca
F-18 5150

http://www.capricornsailing.com/
Re: What failed that caused you to demast? [Re: F-18 5150] #193099
10/09/09 05:08 PM
10/09/09 05:08 PM
Joined: Dec 2003
Posts: 1,066
Wellington, FL-Singer Island, ...
cyberspeed Offline
old hand
cyberspeed  Offline
old hand

Joined: Dec 2003
Posts: 1,066
Wellington, FL-Singer Island, ...
Had a dolphin Striker cable snap on a 12' wide boat, which caused the boat to fold in half, causing the mast to come down.

Beat that...


craig van eaton
Supercat 20
TEAM CYBERSPEED
www.TeamCyberspeed.com
Endurance Series
www.SailSeries.com
Re: What failed that caused you to demast? [Re: TEAMVMG] #193100
10/09/09 05:11 PM
10/09/09 05:11 PM
Joined: May 2005
Posts: 108
Coral Gables, Fl
ferminj Offline
member
ferminj  Offline
member

Joined: May 2005
Posts: 108
Coral Gables, Fl
Lost pin in shackle holding spinn block to sidestay tang, mast came down in slow mo narowly missing competitors. Now everythings taped.

Re: What failed that caused you to demast? [Re: ] #193124
10/09/09 11:59 PM
10/09/09 11:59 PM
Joined: Jun 2001
Posts: 493
Minnesota
Jeff Peterson Offline
addict
Jeff Peterson  Offline
addict

Joined: Jun 2001
Posts: 493
Minnesota
What is the correct term for losing the mast?

I learned the term as "de-mast", but when I read an old sailing book years later, they used the term "dis-mast".



Jeff Peterson
H-16 Sail #23721
Big Marine Lake, MN
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