Forums > Windsurfing General

I blame a fisherman for bending my boom

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Created by Tardy Two weeks ago, 1 Oct 2019
Tardy
3140 posts
1 Oct 2019 3:33PM
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I HAD THE biggest catapult today after hitting a submerged fishing bin today ..i was fully powered up and probably doing 50-55 kms /hour
then there it was ...bang all over before I knew it ...funny how the boom bent on both sides ..?

I guess i was lucky it was a alloy boom ..and bent ...i got real sore shoulders and neck ..had a helmet on .

shall i try straighten it ? ...or is it a gonna .....haven't had a good look at it yet ...

i usually use a carbon boom ..but just happen to grab this one cause it was on top ...
bad move I guess ,But it might of softened the blow ...
i remember my face plant ...but with the helmet on it did stop my head from going into the water ...so they have their goods and bads .
**** it hurt .

Imax1
VIC, 2251 posts
1 Oct 2019 5:55PM
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No way to straightening.
Id say it was closer to 60

olskool
QLD, 1524 posts
1 Oct 2019 6:11PM
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Yep now thats a solid hit ! !

Tardy
3140 posts
1 Oct 2019 4:20PM
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Tardy
3140 posts
1 Oct 2019 4:33PM
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Imax1 said..
No way to straightening.
Id say it was closer to 60



yep your right ..just tried ...but its all out of shape ..bent near the head too.....fee uck ed ..

looks like I'm looking for a 160-210 ,i use it for my little ones .

FormulaNova
NSW, 9323 posts
1 Oct 2019 6:36PM
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Tardy said..
Imax1 said..
No way to straightening.
Id say it was closer to 60



yep your right ..just tried ...but its all out of shape ..bent near the head too.....fee uck ed ..

looks like I'm looking for a 160-210 ,i use it for my little ones .


The aluminium they use for booms seems to be hardened in some way, so its unlikely to bend back, although I have had someone bend back the arms of an alloy boom, but not quite that bent as yours!

I wonder if carbon would have broken or just made it even more painful for you?

Tardy
3140 posts
1 Oct 2019 4:43PM
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I recon more painful ...check this shot out ...it's cactus ...


Swindy
WA, 309 posts
1 Oct 2019 4:48PM
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You could go retro and make a Z boom out of it.

Tardy
3140 posts
1 Oct 2019 4:57PM
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whats a Z boom I'm not old enough to remember that one ..LOL

Swindy
WA, 309 posts
1 Oct 2019 5:09PM
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Tardy said..
whats a Z boom I'm not old enough to remember that one ..LOL


Niether am I my grandfather told me about them.

decrepit
WA, 9511 posts
1 Oct 2019 5:33PM
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I think I may have the front end of one in the roof of my shed.

gavnwend
NSW, 1036 posts
1 Oct 2019 7:38PM
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Tardy did you get your stumble on Gopro!.Thats just bad luck hope all good.

Imax1
VIC, 2251 posts
1 Oct 2019 8:40PM
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From a technical box head view about aluminium , which I know a little but enough to get into trouble about ,
The technical meaning of alloy is , a mixture of metals , Now were over that ....,
Aluminium is produced in three ways , cast , which is totally crap , forged , it's great but not used in booms , and extruded .
Boom type material .
There are variants to alloy tube and all have longways strain . Easy to crush, hard to bend.
When anodised , ( rust resistant shell ) , ( boom tube ) , produces an even stiffer tube , a tiny bit , but now hates bending even more . This is done after bending .
To sum up , after extensive waffle , I would not try to straighten bent alloy boom of more than a couple degrees , and even then , would seriously weaken the tube .

Tardy
3140 posts
1 Oct 2019 6:49PM
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gavnwend said..
Tardy did you get your stumble on Gopro!.Thats just bad luck hope all good.


no go pro footage ...but i could reenact it ...maybe I'll hit a manta in shark bay in 6 weeks .HOPE NOT

.i have barnacle scraps on my Patrik .
the board went over it then the fin fetched up ..then face plant time .Just glad i didn't knock out ..

mike I'll bring my end over for ya ... ha.i didn't really like the small diameter arms ...sore hands after a while ..

Sparky
WA, 935 posts
1 Oct 2019 8:33PM
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Tardy said..

gavnwend said..
Tardy did you get your stumble on Gopro!.Thats just bad luck hope all good.



no go pro footage ...but i could reenact it ...maybe I'll hit a manta in shark bay in 6 weeks .HOPE NOT

.i have barnacle scraps on my Patrik .
the board went over it then the fin fetched up ..then face plant time .Just glad i didn't knock out ..

mike I'll bring my end over for ya ... ha.i didn't really like the small diameter arms ...sore hands after a while ..


When you reenact it use the same bent boom upside down. Just saying...

MarkSSC
QLD, 358 posts
1 Oct 2019 10:55PM
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Imax1 said..
From a technical box head view about aluminium , which I know a little but enough to get into trouble about ,
The technical meaning of alloy is , a mixture of metals , Now were over that ....,
Aluminium is produced in three ways , cast , which is totally crap , forged , it's great but not used in booms , and extruded .
Boom type material .
There are variants to alloy tube and all have longways strain . Easy to crush, hard to bend.
When anodised , ( rust resistant shell ) , ( boom tube ) , produces an even stiffer tube , a tiny bit , but now hates bending even more . This is done after bending .
To sum up , after extensive waffle , I would not try to straighten bent alloy boom of more than a couple degrees , and even then , would seriously weaken the tube .


Like yourself, I am no metallurgist but I am guessing that the material they alloy (mix) with the aluminium is copper. The copper alloy stops the metal from being easy to bend and adds in some corrosion resistance. These alloys are commonly used for aircraft structures. Other alloys, such as magnesium, are also used. Magnesium adds strength and is very light, however it corrodes quickly in salt water. Aluminium alloys can be bent bit the radius of the bend is critical. Additionally, if you keep bending it, back and forth, it will crack and break along that line.

NordRoi
279 posts
1 Oct 2019 10:59PM
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The worst story I've heard was a friend of mine. He was saling at mach 1 and he hit something and planted.

The something was a a big box, like 4 X 4 square meters...
The something in the box were osters.

The dude had over 50 stiches over is helbow, and harms.

Stupid "fisherman"...

Mark _australia
WA, 19559 posts
2 Oct 2019 1:39AM
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I want to know what a fishing bin is?

Mastbender
1933 posts
2 Oct 2019 1:57AM
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Mark _australia said..
I want to know what a fishing bin is?




Me too, maybe a floating bait tank/barge?

Tardy
3140 posts
2 Oct 2019 3:48AM
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Mastbender said..

Mark _australia said..
I want to know what a fishing bin is?





Me too, maybe a floating bait tank/barge?


yep you got it ,plastic ...about 1 metre by 1metre with lid on with the water over lapping the lid ...so you can only see it when your right on top of it .
sun in my eyes heading into the wind ,
i did have a 3 hour session in perfectly flat water ,so can't complain ...

sparky ..great idea , lol

FormulaNova
NSW, 9323 posts
2 Oct 2019 7:03AM
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Tardy said..
Mastbender said..

Mark _australia said..
I want to know what a fishing bin is?





Me too, maybe a floating bait tank/barge?


yep you got it ,plastic ...about 1 metre by 1metre with lid on with the water over lapping the lid ...so you can only see it when your right on top of it .
sun in my eyes heading into the wind ,
i did have a 3 hour session in perfectly flat water ,so can't complain ...

sparky ..great idea , lol


Where are these things located, i.e. where were you sailing? Do they have marker buoys on them to show where they are?

I ran over a kiteboard once because you couldn't see the stupid thing floating upside down as its colour just blended with the water, which was surprising as I think it was a dark red or brown.

Tardy
3140 posts
2 Oct 2019 6:03AM
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looks like it was off a troller ,it was just blown in ...had shells growing on it ,so it had been at sea a long time ..

lucky there wasn't a kiter connected to the board you hit , did you stop in a hurry ...

I had a 40 pointer on ,it was like a anchor been thrown out and connected to your rear footstrap...bloody sore knee and shoulder today ,

FormulaNova
NSW, 9323 posts
2 Oct 2019 10:00AM
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No, the kiteboard was floating upside down. The kiter was about 20 metres downwind, fiddling with his kite. I was pretty angry that he had just left his board floating around like that, but I am guessing he was a beginner and struggling with his kite.. which happens.

It left my new board with a nice gouge that went for about 40cm near the tail, but luckily it didn't seem to penetrate the divinycell layer. I just filled it later. I figure that this would happen with a new board some day, so at least it wasn't too bad.

djl070
WA, 276 posts
2 Oct 2019 8:14AM
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FormulaNova said..

Tardy said..

Imax1 said..
No way to straightening.
Id say it was closer to 60




yep your right ..just tried ...but its all out of shape ..bent near the head too.....fee uck ed ..

looks like I'm looking for a 160-210 ,i use it for my little ones .



The aluminium they use for booms seems to be hardened in some way, so its unlikely to bend back, although I have had someone bend back the arms of an alloy boom, but not quite that bent as yours!

I wonder if carbon would have broken or just made it even more painful for you?


Speaking from experience it is more painful on the hip pocket





MagicRide
187 posts
2 Oct 2019 1:20PM
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You'd be out a lot more money if that was a carbon boom. Bet your pocket book is thanking you now.

Mark _australia
WA, 19559 posts
2 Oct 2019 4:53PM
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^^^ that looks like carbon to me and at least that is repairable, but alloy is not ever repairable.


FormulaNova
NSW, 9323 posts
2 Oct 2019 7:10PM
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djl070 said..
FormulaNova said..

Tardy said..

Imax1 said..
No way to straightening.
Id say it was closer to 60




yep your right ..just tried ...but its all out of shape ..bent near the head too.....fee uck ed ..

looks like I'm looking for a 160-210 ,i use it for my little ones .



The aluminium they use for booms seems to be hardened in some way, so its unlikely to bend back, although I have had someone bend back the arms of an alloy boom, but not quite that bent as yours!

I wonder if carbon would have broken or just made it even more painful for you?


Speaking from experience it is more painful on the hip pocket







I'm impressed that the back-end stayed intact. I broke the head on a chinook boom, and the tailpiece followed and snapped like a twig.

At least with the Chinook, once I put a new head on it, and reinforce the tailpiece, it should be good to go. I am tempted to make a mod to the tailpiece and make it either a touch longer or with it a bit more beefed up.

djl070
WA, 276 posts
3 Oct 2019 9:37AM
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MagicRide said..
You'd be out a lot more money if that was a carbon boom. Bet your pocket book is thanking you now.


It is carbon , as Mark pointed out it can be repaired, ali can't.

Maddlad
WA, 383 posts
3 Oct 2019 1:56PM
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I had an idiot fisherman trawling through the river on Monday with a long line out the back of his boat, right through those of us who were foiling. I was going hard up wind on the foils as he went in front of me. I realised very late he had a line out the back at about head height and had to crash on purpose to avoid hitting it. What did they do after seeing me crash to avoid their trawling line? Nothing, just kept on going...****ing fishermen..

AUS 808
WA, 229 posts
5 Oct 2019 10:10AM
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djl070 said..

FormulaNova said..


Tardy said..


Imax1 said..
No way to straightening.
Id say it was closer to 60





yep your right ..just tried ...but its all out of shape ..bent near the head too.....fee uck ed ..

looks like I'm looking for a 160-210 ,i use it for my little ones .




The aluminium they use for booms seems to be hardened in some way, so its unlikely to bend back, although I have had someone bend back the arms of an alloy boom, but not quite that bent as yours!

I wonder if carbon would have broken or just made it even more painful for you?



Speaking from experience it is more painful on the hip pocket






That looks familiar :-)
As Mark says, carbon booms are repairable ;-)

MagicRide
187 posts
5 Oct 2019 11:38AM
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Tardy said in his post he was using an alloy boom. So Tardy, could you reiterate this for us. After all, this is your boom. Thx!

By the way I had an alloy boom as well Tardy that bent in that exact spot. I would of thought the carbon boom would have just snapped and broke in 2 pieces with enough force. My experience with alloy is it bends when a blunt force attacks it. So that pic looks like the behavior of alloy bending in my own opinion. Based on your description, you slammed that boom down hard at full speed. Looking closer at your boom tail, that looks like alloy to me.



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"I blame a fisherman for bending my boom" started by Tardy