Mast reinforcement

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Kemosabi
Kemosabi
69 posts
69 posts
27 May 2009 3:51am
I see some talk about reinforcing the lower part of windsurfing masts and this sounds like something I should be concerned about. What's the best way to handle this?
If there's a thread I've missed, I'm happy to read that instead of re-hashing old info.
Thx.


FYI:
Got both Minis fully operational now... Good tires, bearings, sails, etc.
My 14 year old daughter got to sail for the first time yesterday. I took her for a ride and spent some time explaining everything, then she sailed by herself for the rest of the afternoon. She handled the craft safely and we had a great time. Talk about a proud daddy! Next time I won't leave the camera at home.
Hiko
Hiko
1229 posts
1229 posts
27 May 2009 7:11am
Good news Kemosabi!!!
Paul [Landyacht ] has mentioned this in the threads somewhere but in essence it was 600mm [2 feet] of either aluminium tube slit at the top for a short way in a cross to avoid the hard spot and held in with silcone
The alternative is to use softwood planed to a taper and well rounded at the top
This is what I have done but yet to try it out as the yacht is not finished
I am no where near as fast as you with the building Great job!!!!
cisco
cisco
QLD
12365 posts
QLD, 12365 posts
27 May 2009 11:52am
Ditto kemosabi, sailing solo is one thing but having company is a lot more fun. Congratulations!

Making sure the mast reinforcing is long enough to go past gooseneck or bottom of the sail is probably a good idea. Cheers Cisco
Hiko
Hiko
1229 posts
1229 posts
27 May 2009 10:08am
Yes that is a good idea I have actually done that mine is about a metre long
landyacht
landyacht
WA
5921 posts
WA, 5921 posts
27 May 2009 7:42pm
they have the gist of it, its there to compensate for the fact that the mast was originally designed for a windsurfer. on some early masts I shoved some whacking great heavy pipe up there, then john and wayne built their yachts and just used the lightweight windsurfer mast extensions( not mast tops)
they then proceeded to beat me so I started making lighter mast reinforcers.
if you have none the mast will eventually snap at the mast step base, or the rowlock.
having the stiffener in the mast also led to gradually shortening the mast step from the original 500mm down to 250mm
sn
sn
WA
2775 posts
sn sn
WA, 2775 posts
27 May 2009 7:54pm
I have the top 1500mm of a broken mast glued into my mast with silastic.

Its probably a bit heavier than it needs to be- but it seems to be doing the trick.
landyacht
landyacht
WA
5921 posts
WA, 5921 posts
28 May 2009 3:49pm
thats quite a good system too, as the mast starts soft then stiffens with sheeting
Kemosabi
Kemosabi
69 posts
69 posts
29 May 2009 3:59am
By "Silastic" do you mean silicone adhesive?
I don't have any old windsurf masts, so it looks like I need to use wood or aluminum tube.

Are there any good places to sail on the south island of NZ? I'm contemplating a trip in the next few months.
kiwi307
kiwi307
488 posts
488 posts
29 May 2009 5:38am
Kemosabi said...

By "Silastic" do you mean silicone adhesive?
I don't have any old windsurf masts, so it looks like I need to use wood or aluminum tube.

Are there any good places to sail on the south island of NZ? I'm contemplating a trip in the next few months.


Hi, there are some gret spots, drop me a PM and I will sort you an itinerary. A bit cold at the moment though, daytime temps are getting up to around 9 degrees c tops some days!
landyacht
landyacht
WA
5921 posts
WA, 5921 posts
29 May 2009 6:14pm
Any clubs down that way these days, maybe a few old rivals
kiwi307
kiwi307
488 posts
488 posts
30 May 2009 5:04am
landyacht said...

Any clubs down that way these days, maybe a few old rivals


I have to be careful how I answer this, as I have been out for a while, there were only 2 clubs really in the Mainland, Nelson and Christchurch, neither appear to be active any more, but it's possible they still exist, a long way from their former glory.
Most of the people you knew are long gone Paul
landyacht
landyacht
WA
5921 posts
WA, 5921 posts
30 May 2009 7:51pm
how about you make it your mission to find them for us, I need to save up for a holiday somewhere new
sn
sn
WA
2775 posts
sn sn
WA, 2775 posts
1 Jun 2009 8:04pm
Kemosabi said...

By "Silastic" do you mean silicone adhesive?


Yep- it was silicone sealant/ adhesive of some sort (cant remember which type)

The 1.5m of mast top is an interference fit at the base when pushed up into the main mast, so I just pushed the 1.5m section most of the way in, and pumped the silastic into the gap, then pushed the 1.5m section all the way in so the bottom of the full mast, and the short section were flush.
kiwi307
kiwi307
488 posts
488 posts
2 Jun 2009 6:48am
landyacht said...

how about you make it your mission to find them for us, I need to save up for a holiday somewhere new


You had better give me some names! Pegasus in ChCh had over 100 members in it's heyday, Tasman (Nelson) over 50 and Timaru had about 10 or so.
All gone
Hiko
Hiko
1229 posts
1229 posts
2 Jun 2009 6:59am
I believe there are some active homebuilders in Dunedin but dont know any names
landyacht
landyacht
WA
5921 posts
WA, 5921 posts
2 Jun 2009 3:03pm
Hiko said...

I believe there are some active homebuilders in Dunedin but dont know any names

get onto it fellas

Kemosabi
Kemosabi
69 posts
69 posts
3 Jun 2009 12:11am
Thanks for the info. Now it's just a matter of finding the right diameter tube for the masts I'm using.

-------------------------------------------
The south island intrigues me the most, but I'll probably start out in Auckland and work my way down from there.

Looks like there's an active group at Ohope beach. Do most of you NZ fellas sail there?
kiwi307
kiwi307
488 posts
488 posts
3 Jun 2009 3:49am
Ohope is where the most strength has come from in the last 15 or so years. A close beach, and a few long time enthusiasts (Clem for one) has held it together.
Usual story elsewhere, the key people drifted off and the thing fell to bits. The Auckland club remains, but big city and not many places to sail has always made it more difficult, key people keep it alive.
There is good sailing at 90 mile beach in the far north.
For scenery the south island is hard to beat.
Landsailor
Landsailor
7 posts
7 posts
3 Jun 2009 4:56am
The Auckland Club Web site has a sailing calender.

www.landsailing.co.nz

We have a few active members that sail most scheduled club days, some that only turn up for the major events.

Club days are open to anyone - even arm chair ex NZLYA Presidents
kiwi307
kiwi307
488 posts
488 posts
3 Jun 2009 7:32am
Landsailor said...

The Auckland Club Web site has a sailing calender.

www.landsailing.co.nz

We have a few active members that sail most scheduled club days, some that only turn up for the major events.

Club days are open to anyone - even arm chair ex NZLYA Presidents


Could even add in here "armchair" ex ALYC president, secretary etc etc! You also don't know what has been done under your radar. It's a long way from here to most of the sailing days! But you will see me back at some level! Thanks John, glad to have stirred you into action
hills
hills
SA
1622 posts
SA, 1622 posts
3 Jun 2009 9:11am
Welcome to the forum John, its great to see we have such strong NZ representaion. It would be great if some of you could post some photos of your sailing sites around NZ, so us Aussies can start making our travel plans!
Kemosabi
Kemosabi
69 posts
69 posts
3 Jun 2009 10:03am
This one looks like a possibility:

2 Aug Sunday - Muriwai 100 km Enduro - Muriwai - 9:30 am

Is this a time/distance race?
kiwi307
kiwi307
488 posts
488 posts
3 Jun 2009 10:21am
Kemosabi said...

This one looks like a possibility:

2 Aug Sunday - Muriwai 100 km Enduro - Muriwai - 9:30 am

Is this a time/distance race?


No, just go 50km up the beach, round the mark and come back. Remember it is mid winter. Depending on the yacht from 1hr 50 to 4 hrs +
Landsailor
Landsailor
7 posts
7 posts
3 Jun 2009 10:24am
The Muriwai Enduro is one lap of the beach, starting at the southern end of the beach. We set a "safe" time that the 4x4 stationed at the top mark will start heading down the beach to pick up struggling yachts.
The northern end of the beach where it sweeps into the Kaipara harbour is usually the fastest, most challenging place, with higher wind speeds and isles of hard sand bordered by pools of water.
We set a 50km course for Minis and Blokarts if there are the numbers.


A great race all in all.

Best time for a Class 3 1hr 2min , Class 5 1hr 20min
landyacht
landyacht
WA
5921 posts
WA, 5921 posts
3 Jun 2009 9:16pm
Landsailor said...

We set a 50km course for Minis and Blokarts if there are the numbers.






what a bunch of babies
welcome to the forums, landsailor, sorry the better name was taken, you had to be here 2 years ago, but you did well to pick the next obvious choice.
enjoy

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