Showing posts with label Ventilation. Show all posts
Showing posts with label Ventilation. Show all posts

Thursday, December 21, 2023

Garage Works - 12/21/2023

These are two 85 cm Project Cedrus Classic Carbon masts.  The one on the left has been my workhorse for hundreds of sessions now.  And it has been through a lot.  The one on the right is a new to me one that was being sold because the owner has settled on a single foil brand (I got this less than half off the original price and it is in like new condition).

They both have the anti-ventilation fence on them.  And they are at about the same position.

But they don't behave the same.


The old mast hasn't flinched on me since I put the fence on.

The new mast still ventilates.


I just took the orange fence off.  I'm going to get some suitable double sided waterproof tape and I'll relocate it.  Thats the hard part - where exactly to put it.

I have noticed the tracking actually starts when the mast is lower in the water column.  This is totally counterintuitive to me.  I'm guessing that repositioning this fence to a higher position will stop what is currently going on.  It'd be one thing if it was happening when I was high up on the mast - but that has not happened once.

More to follow on this science experiment.

Sunday, October 2, 2022

Garage Works - 10/2/2022

Between running errands throughout the day, I did get some work done in the garage.  First up is fitting the ventilation fence on the Project Cedrus mast.  This is supposed to stop/prevent/slow down the venting that happens when pulling hard upwind.


It's probably time to break down the 85 cm mast anyways - so sometime this week I'll stick the fence on.  Too bad the wind forecast is pretty pathetic - I'll have to wait to test this out.


And I also got a chance to work on No.27

First I sanded the rail tape application from yesterday.  I grinded the mast track boxes open.  After that I closed the gap left over from yesterday with 1" rail tape (pretty much just the nose) and placed some epoxy down where the logos are going to go.

Then I put the logos down and then put a fill coat on the bottom deck.


It's 9pm as I'm writing this and I'm debating about going back out and putting another fill coat on the bottom (to get everything level tonight instead of having to sand and then fill again).


I didn't touch No.26 - I figured I'd just let the epoxy cure more on that one before beginning the inevitable - sanding, sanding, sanding.

I also put some epoxy on some tiny pinholes I saw on No.20 - I want to get that one finished up so I can put it up on the market (as I'm not really using it anymore).