bent boom

> 10 years ago
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HAIL
HAIL
SA
1160 posts
SA, 1160 posts
14 Mar 2007 10:44pm
had good winds all monday and it just happened to be a public holiday! gotta love that! de rigging my gear i noticed that the starboard side of my 14 month old NP X3 boom had a quite large upward bend in it. i swore alot then got on the phone to onboard and orded me a north silver!! GIVE THAT A GO! does anyone know wat would have caused an upward bend in my boom?
curac
curac
WA
1160 posts
WA, 1160 posts
14 Mar 2007 9:59pm
a big stack,
maybe holding onto when getting washed in surf
plev
plev
QLD
181 posts
QLD, 181 posts
14 Mar 2007 11:23pm
I have found that running into Australia at speeds of 25kts plus while hooked in will seriously deform all booms. Yet to find one that will handle it.
drjukka
drjukka
QLD
258 posts
QLD, 258 posts
14 Mar 2007 11:41pm
Gee Demons,

14 months out of a boom - that's great!!

My average is about 3-4 months!! Including North Silver, Chinook, Pro Limit, Pryde - aluminium or carbon (Al seems to be more resilient then C).

Plev is right - most likely damage is from a big stack/catapault - not immmediately apparent.

The best boom I have ever had was a Hydrodynamix that lastest 9 seasons (Finally let go in the shipping channels in the middle of Port Phillip Bay off Port Melbourne) - but the manufacturer of them is not willing to give a demo of the new models as I only do slalom and speed - no waves!! despite my trashing several booms a year!

- J


firiebob
firiebob
WA
3182 posts
WA, 3182 posts
14 Mar 2007 11:08pm
Boy drjukka, I thought I was king boom breaker, I can get 10 months

Mine always break from fatigue, and same as you I mainly slalom etc.
I finally went for the C, feels heaps better, just hope the cost to life ratio works out. I didn't need to read you get a better run from Al

Anyway, fingers crossed.
md74
md74
QLD
1064 posts
Harrow
Harrow
NSW
4521 posts
NSW, 4521 posts
15 Mar 2007 3:22pm
I've seen 4 broken booms in the last 4 weeks at my local spot, and all a fatigue failure just inside the head,

My current boom is just over 12 months old. Does this mean I should replace it before I end up doing a 2km swim with my gear?
sonic
sonic
QLD
756 posts
QLD, 756 posts
15 Mar 2007 2:32pm
14 MONTHS!I am lucky if i get 6 months...always breaking around the head, i work my gear hard but do not abuse it, to be honest 14 months is good, be warned if its bent it may be fatigued and will go without warning and can have some pretty sharp edges around you and your kit.....how heavy are you?do you sail one way more than the other?, i hear some of the guys fins at sandy point bend one way because of the down wind stresses, i am thinking sailing up wind would continually put extra pressure on the boom. By the way the x3 boom always cracks around the head but as the aluminium goes straight through its apparently"only cosmetic".
firiebob
firiebob
WA
3182 posts
WA, 3182 posts
15 Mar 2007 1:37pm
Yeh Harrow, that's where mine used to break, so I switched to Chinook with nylon head. Then they started breaking the arms next to the head, I think it's caused by flexing, work hardens like bending a spoon back & worth

If I have a boom for awhile, I get nervous going too far out, as I like going a fair way up & down the coast. Had some bloody long swims & walks
curac
curac
WA
1160 posts
WA, 1160 posts
15 Mar 2007 1:49pm
wow, i'm surprised to hear that so many people go through so many booms.
personally i am pretty good with booms. but i tend to trash boards.

a mate of mine always breaks masts.

i guess it depends on your style
HAIL
HAIL
SA
1160 posts
SA, 1160 posts
15 Mar 2007 11:05pm
well it sounds like i am well off! there is no way i could afford that many new booms!! my feeling is that it would have been one of my attempted duck gybes that went wrong? but it doesnt matter i have a new boom which should last for a little bit more!! hopefully.
Paul Kelf
Paul Kelf
WA
678 posts
WA, 678 posts
17 Mar 2007 7:51pm
quote:

The best boom I have ever had was a Hydrodynamix that lastest 9 seasons (Finally let go in the shipping channels in the middle of Port Phillip Bay off Port Melbourne) - but the manufacturer of them is not willing to give a demo of the new models as I only do slalom and speed - no waves!! despite my trashing several booms a year!

drjukka,
I just checked our correspondence files and what was actually said was that you were willing to TEST our slalom booms.
At that time we were looking for people to TEST our latest skinny wave booms, the slaloms were already tested and on the market.
We also directed you to the retailer in Coloundra, some retailers will DEMO gear.

We will Demo any of our products and we have just about one of everything in the van at all times, including a custom Z-Boom.
The only catch is you have to be in WA and be at the same beach as us, or arrange to pick up the gear you want to Demo.

Now to the reason that Hydro boom lasted so long: It was 32mm diameter and that makes a huge difference to the strength and stiffness, about 25% more than any small diameter boom.
If you are over about 80 kg then you will probably bend and break reduced diameter alloy booms pretty reguarly, fact of life!
The simple answer for heavy weights is to go back to 32mm booms.

Paul
greenleader
greenleader
QLD
5283 posts
QLD, 5283 posts
18 Mar 2007 12:18am
i haven't bent a boom in 28 years ya clumsy clods!
NotWal
NotWal
QLD
7436 posts
QLD, 7436 posts
18 Mar 2007 12:20am
I tried straight booms once. Bent booms are better.
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