Straighten a bent boom

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OceanBlue64
OceanBlue64
VIC
980 posts
VIC, 980 posts
23 Mar 2009 10:31pm
Is it possible to straighten a bent boom and not loose too much strength or cause a weak spot?
The bend isnt too severe this time and, as I cant afford a new boom at this point in time, I want to do what I can to save this one.
Has anyone any success and if so, how did they bend it back without kinking it?
WindWarrior
WindWarrior
NSW
1019 posts
NSW, 1019 posts
23 Mar 2009 10:53pm
If the bend is not too bad you would be better off leaving it.
When you try to straighten it you normally end up causing a weak spot which will break.
If the initial impact that bent the boom wasn't enough to break it, attempting to manipulate it back into shape probably will.
Sorry to rain on your parade, buy yourself a new arm if you are trying to save coin but breakage is most likely inevitable.
frant
frant
VIC
1230 posts
VIC, 1230 posts
24 Mar 2009 6:55am
Pat, I usually leave the bent arm as is if it is not kinked. I always buy the same boom so from two new booms can usually make a third boom and then a spare arm by sleaving and joining the broken arms (3 usually can make 1) when the third boom breaks for a fourth boom. My last crash resulted in two broken boom arms and a bent tail piece so I am in for a new one.
OceanBlue64
OceanBlue64
VIC
980 posts
VIC, 980 posts
24 Mar 2009 8:51am
frant said...

Pat, I usually leave the bent arm as is if it is not kinked. I always buy the same boom so from two new booms can usually make a third boom and then a spare arm by sleaving and joining the broken arms (3 usually can make 1) when the third boom breaks for a fourth boom. My last crash resulted in two broken boom arms and a bent tail piece so I am in for a new one.


This boom was already made from 2 different booms I managed to trash a couple of months ago. I had to shim the boom head as the arms were of a slightly smaller diameter than the original. The bend is a little too much to sail with so I may just try to bend it back just a little to at least a point where I can use it, otherwise I wont be sailing for at least another month. Not sure I could cope with that! lol
frant
frant
VIC
1230 posts
VIC, 1230 posts
24 Mar 2009 4:29pm
OceanBlue64 said...

frant said...

Pat, I usually leave the bent arm as is if it is not kinked. I always buy the same boom so from two new booms can usually make a third boom and then a spare arm by sleaving and joining the broken arms (3 usually can make 1) when the third boom breaks for a fourth boom. My last crash resulted in two broken boom arms and a bent tail piece so I am in for a new one.


This boom was already made from 2 different booms I managed to trash a couple of months ago. I had to shim the boom head as the arms were of a slightly smaller diameter than the original. The bend is a little too much to sail with so I may just try to bend it back just a little to at least a point where I can use it, otherwise I wont be sailing for at least another month. Not sure I could cope with that! lol

I have still got one arm that has been sleeved from two. Boom was a 162cm so you can use that if it works and straightening doesn't.

Bondalucci
Bondalucci
VIC
1580 posts
VIC, 1580 posts
25 Mar 2009 1:05am
Don't even try to straighten it........


Just do what I do and sail it as it is!!!!!!


Here's mine

jp747
jp747
1553 posts
1553 posts
24 Mar 2009 11:44pm
if i remember precisely give it to Haggar and he'll reinvent the twisted boomor was it heafter a wonderfull cataloop
Krisiz1
Krisiz1
WA
331 posts
WA, 331 posts
25 Mar 2009 1:22pm
You can straighten booms by using 1 of 2 methods

1. Rig up with boom upside down and perform similar catapault on opposite tack.

2. (seriously) Gently bend in wheel arch of your van using the tyre as the fulcrum. I have done this twice successfully.1 boom still in use by mate I sold it to!
Yousurf
Yousurf
WA
165 posts
WA, 165 posts
25 Mar 2009 1:34pm
They are meant to be bent. You would have to rig your sail completely flat if you wanted to use a straight one.
Wet Willy
Wet Willy
TAS
2317 posts
TAS, 2317 posts
25 Mar 2009 7:35pm
Ask Nebbian's mate about the broomstick trick
Sailhack
Sailhack
VIC
5000 posts
VIC, 5000 posts
25 Mar 2009 10:02pm
I bent a boom at near right angles! Sailed it back in with the sail flapping due to untying the outhaul (fear of battens breaking), anyways used a mates bull-bar to straighten and voila! near-straight boom.

I know what cold-forming aluminium tube does, so I'm not too confident it will last, luckily the bend was straight up, and not out or down, might give me some breathing space...
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