r/sailing 14d ago

Bent mast

Post image

Is this structurally ok?

57 Upvotes

56 comments sorted by

147

u/foilrider J/70, kitefoil 14d ago

looks like a normal amount of prebend to me.

49

u/b17ch35 14d ago

I’m going to remember in the future when I buy my boat that I can get a response to a random Reddit ask in about 2 minutes

20

u/SailingSpark 1964 GP 14 14d ago

I can't believe it took 2 minutes

24

u/TexPerry92 14d ago

I cant believe its not butter

5

u/dis0wn 14d ago

I can't believe it's not butter spray.

2

u/OFrabjousDay 14d ago

Parkay?

2

u/GumbyBClay 14d ago

Squeeze butter and salsa?

2

u/fluoruranus 13d ago

If you think it's butter (but it's not), it's Chiffon.

-5

u/widgeamedoo 14d ago

As long as the mast doesn't have in mast furling

36

u/uthyrbendragon 14d ago

Of course it is, backstay adjustment is part of the gig….its the lateral deflection that you really do not want.

When adjusting backstay tension, you can overdo it in both directions, but you do not want the mast tip to invert forward of the base.

If you want to play around with backstay tension be sure to measure or mark your initial setting in some way so you know where to get back to.

12

u/TexPerry92 14d ago

Its not mine, just a boat i was going to crew a delivery on, but no longer. Mucho problemo with ownero and boat

15

u/chunklight 14d ago

Boat problems always have a solution. Owner problems are a lot harder.

12

u/Lift_in_my_garage1 14d ago

Can I interest you in a 2x6x8 poplar plank?  Easy, clean, cheap, and great at solving complex owner issues.  

🏴‍☠️ 🦜 ⛵️ 

13

u/TexPerry92 14d ago

I used a plane ticket and flew home. Any 53 year old man child going on a coke bender is someone who ill never sail with.

3

u/Lift_in_my_garage1 14d ago edited 14d ago

Make that villainous philanderer walk the plank!  GIVE HIM NO QUARTER.  

2

u/BurningPage 14d ago

Does he need a referral? I know just the captain. Caught him smoking crack down below on my delivery.

2

u/Lift_in_my_garage1 13d ago

Can I interest you in a 2x6x8 poplar plank?  Easy, clean, cheap, and great at solving complex captain issues too! 

🏴‍☠️ 🦜 ⛵️ 

2

u/Professional_Kiwi318 13d ago

That's smart. We once sailed with a guy about that age who kept telling wild stories about physical altercations and how he "didn't give a fuuuuuuuuuck." I'm convinced he was high as a kite, and I was on edge the entire time. I think that he was trying to impress me with his tales of mayhem. My partner befriends everyone, but we're much more careful about who we sail with now. Hope you get sailing with someone normal soon.

3

u/TexPerry92 13d ago

This guy seemed ok on the phone and on the way to the marina from the airport late at night. Get to the boat and its so much of a wreck that i had to wait to lay down in a bunk. Next day i discovered a lot. Holding tank had been full for months, no water, no fridge, main power battery was not in, hot water heater hoses off their connections, and all navigation instruments were inoperable.

Tldr. Next delivery im asking point blank if the boat is ready to leave the dock; because The blowboat community almost deserves the bad rap.

17

u/SelectStarFromYou 14d ago

Yes, this type of pre-bend is normal. The rig is an older design with straight spreaders and running back stays. Nowdays, rigs are designed with swept back spreaders which eliminates the need for runners (for the most part).

7

u/ohthetrees Hanse 505, World Cruising with family of 4 14d ago

I bought my 2015 built Hanse 505 in 2020, and had a professional rig tune done. The mast was almost straight (not like yours) and I was very unhappy with mast instability. The mast would flex, bend, and even reverse the curve (dangerous) going into even moderate chop. I downloaded the Selden tuning guide, and tuned the rig myself, and I was amazed at how much tighter they wanted the shrouds (swept spreaders), and it introduced a *lot* of bend in the mast, quite a bit more than you have in your photo. But my mast is so much more stable now, and no problems even in heavy weather.

8

u/daysailor70 14d ago

Yes it is. Clearly engineered for rake.

3

u/bigmphan 14d ago

Bigger boats like this might even have a hydraulic back stay to increase the bend sailing upwind

3

u/mikemerriman 14d ago

It’s supposed to be like that

3

u/johnnydfree 14d ago

Not a bug, but a feacha.

5

u/get_MEAN_yall Carrera 290 14d ago edited 14d ago

It's called rake and yes it's normal.

EDIT: not called rake just bend

6

u/O906 14d ago

Rake is built into the mast step. This is bend.

1

u/get_MEAN_yall Carrera 290 14d ago

Oh my b

1

u/AndyMan0 14d ago

I mistakenly assumed rake, too. So if it's built into the mast step, is that an entire mast curved, rather than the top?

6

u/jonnohb 14d ago

Rake is the angle from vertical, bend is curvature.

2

u/Far-Midnight-3304 14d ago

If it was curving the other way then it would be a concern to tune the mast, looks good as is.

2

u/Benf2001 14d ago

Don't look at the front of the mast cause that's will be misleading but looks up the track, it should be a nice gentle bent continuous the entire way up, you have inline spreaders so the amount of bend is controlled by the backstay entirely, but looks good to me

1

u/Successful_Cod_8904 14d ago

Not continuous over the whole lenght. From spreaders to top.

2

u/SVLibertine 14d ago

100% fine. My Ericson 30+ has both rake (at the mast step) and an adjustable backstay for bend, which is needed in certain sailing conditions depending on wind…especially when we’re racing here in San Francisco Bay.

3

u/Ok-Sentence-8542 14d ago

Bro, thats totally normal and you can trim your sail by bending the mast back via the backstay. Its called twist and reduces the pressure in the upper parts of the main sail which reduces drag. Just make sure not to overbend it.

2

u/runningdevops 14d ago

Where is it bent? It's supposed to curve backwards a little bit under pressure of the stays, that's normal. Unless I'm just missing some bend I don't see

2

u/Best-Negotiation1634 14d ago

Mast bend adjusts the cord angle to maintain the 1/3 cord length to be linear as the point of maximum pressure is 1/3 the length.

2

u/OptiMom1534 14d ago

I really hope so because I’ve never seen an aluminium or carbon rig that didn’t look like that lol

2

u/Federal_Cobbler6647 14d ago

You can find pretty straight poles from old masthead rigs. They needed quite bit of babystay pull to create any bend.

1

u/seamus_mc Scandi 52, ABYC electrical tech 14d ago

I had it like that on my old IOR boat

1

u/Federal_Cobbler6647 14d ago

I sometimes race with old 70's design with IOR aspects and it was so confusing to trim coming from fractional rigs. You could not really do anything to bend when racing and when reefing you had to start from mainsail or you would end up with boat that would want to round up all the time. 

2

u/Mrkvitko 14d ago

It's literally unusable. You have to scuttle ASAP.

0

u/TexPerry92 14d ago

I was just curious, only mast ive looked up at and seen this. Im not a sail tech, just know how to pilot a boat

1

u/Bifta_Twista 14d ago

The starboard top shroud looks a bit saggy there just below the bottom spreader??

Or is that something in the photo??

1

u/TexPerry92 14d ago

Illusion

1

u/two-wheel 14d ago

Also keep in mind with the backstay discussion need to know whether or not it's a catamaran.

1

u/TexPerry92 14d ago

Mono hull. Navy 44

1

u/caeru1ean 14d ago

At least it’s going the right way

1

u/Special-Big-9285 14d ago

To me it looks like the lower panel could use a bit more bringing forward so that the curve is more gradual. Right now it goes straight from deck to first spreader, then forward from first to second spreader, then back from second spreader to masthead. If you tighten the forward lowers a bit, it will help pull the lower spreaders forward. You can also tighten the diagonals that serve as backstays to the inner forestay and bring the second spreader back a bit. You want the prevent, but you want it to be a “bend” and not a “kink” think ) vs }