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Go Back   SailNet Community > On Board > Gear & Maintenance > Mast Step Plate
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Thread: Mast Step Plate Reply to Thread
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Topic Review (Newest First)
12-13-2010 07:34 AM
sailingdog While you shouldn't need to bolt the mast to the mast step and bolt the mast step to the compression post through the deck, it makes for a much stronger and safer setup if this is done.
12-12-2010 07:46 PM
seabreeze_97 Mine has 8 bolts holding the step in place and if the mast jumped out it'd mean the shrouds were gone or the mast had been badly bent.
12-12-2010 07:57 AM
SailingWebGuy
Quote:
Originally Posted by DulceSuerna View Post
PS just finished installing our new Compression post and it is Beautiful!
Love to see a pic of it if you have one. I just finished one too. The old compression post was badly stained. I made my new one out of red oak and stained it with a natural teak color.

This isn't the best pic of my new one... I got the color match pretty close to all the other wood.
12-12-2010 07:44 AM
ffiill
Quote:
Originally Posted by jaschrumpf View Post
There is no need for through-bolting. On a deck stepped mast the load is straight down on the plate and the lateral forces are low. Deck stepped masts are held in place only by the lip of the plate; I know my mast doesn't have any screws or bolts holding it to the plate.

Since you filled the original holes with epoxy, once you drill them out again for the proper screw size you will be good. No need to through-bolt; but if you are doing other repairs that make it possible and can cover everything up, there's certainly no reason not to go the extra mile.
I have a worry about mine-both my masts just rest on the plate and always have done-no means of securing with a through bolt to plate..Its just that the lip on mine is little more than three inches above the base of the plate.It shouldnt jump out but often wonder if this were possible?
What does anyone think?
12-12-2010 04:31 AM
centaursailor can,t figure the logic of suggesting the mast plate experiences mainly downward forces. The whole power of the sail is transmitted to the boat through the mast plate and comes from all directions, reaching etc. My Centaur is through bolted and as all drive is focused on this point I,m glad it is.
Brian G
PS is anyone else experiencing freezing with Sailnet?
12-11-2010 08:34 PM
SailingWebGuy
Quote:
Originally Posted by mitiempo View Post
Many companies took shortcuts when building boats and it continues today. Plywood core, core not sealed at fastenings, bulkheads not tabbed well (or at all), inferior hardware, lack of backing plates and on and on. Some for financial reasons and some probably because they didn't know any better. But that doesn't mean that we should keep to the same standard. When hardware is replaced by a caring owner the core is epoxy sealed to prevent water intrusion. Backing plates are added as necessary.
I think if the opportunity is there we should try and improve out boats in any way we can. Unlike the builder who used 4 lags and not only saved money on these, but the labor to have someone below to tighten the nuts (x the number of boats built) we only have to buy a few bolts and get someone to help on one boat. Why not?
Well said
12-11-2010 07:54 PM
mitiempo Many companies took shortcuts when building boats and it continues today. Plywood core, core not sealed at fastenings, bulkheads not tabbed well (or at all), inferior hardware, lack of backing plates and on and on. Some for financial reasons and some probably because they didn't know any better. But that doesn't mean that we should keep to the same standard. When hardware is replaced by a caring owner the core is epoxy sealed to prevent water intrusion. Backing plates are added as necessary.
I think if the opportunity is there we should try and improve out boats in any way we can. Unlike the builder who used 4 lags and not only saved money on these, but the labor to have someone below to tighten the nuts (x the number of boats built) we only have to buy a few bolts and get someone to help on one boat. Why not?
12-11-2010 07:22 PM
AboardIndigo Although not the same scale/load, the step on my Catalina 22 is bedded in adhesive with a lag screw into the compression post and a through-bolt a couple of inches forward of that.

I'd probably seal and through-bolt in your situation.
12-11-2010 05:39 PM
sailingdog While the mast step might not have a lot of shear load, it really doesn't make sense to just screw the thing down when you can through-bolt it. If you haven't read Jeff_H's description of his ideal deck stepped mast setup, you might want to.
12-11-2010 07:15 AM
DulceSuerna We had to replace our plate due to it getting damaged upon removal for shipping. Our fabricator said thru bolting ws not neccessary due to no shear load. he used 4 decent sized screws. and sealant/adhesive. The factory plate had no thru bolts and it was 30 years old. PS just finished installing our new Compression post and it is Beautiful!
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