|
|
From: Len den Besten (no email)
Date: Mon Jan 10 2005 - 11:50:26 EST
Thanks to all who replied.
Someone even called me sir :)
Some good advice and nice tricks have come up.
I will surely use 'm.
Len
S/v Present
--- Joe - G4XRZ <> wrote:
>
> Hi Sir
> As Bryan says, there should be some cutouts in the
> mast for various
> fitments and cable entries. Hopefully you could
> inspect via these.
> An alternative is to find someone with an endoscope
> (in the UK they
> are used for cavity wall inspection as well as
> medical..) this could
> reveal all via an existing small opening. Consider
> the aluminuium
> shaving if they could fall onto blocks / sheaves -
> especialy with
> fibre halyards etc. Many have done it without
> problems though. Could
> it not wait until the next mast service ?.. or could
> it be combined
> with a mast inspection along with wiring etc ?.
> As an aside, providing you have a good water runoff
> for the water
> that enters the mast normally, then you can at least
> flush out any
> shavings with a hosepipe prior to moving any running
> rigging.
> Avoid drilling holes around the mast - up and down
> is not so bad,
> but avoid areas where existing fittings are if the
> new fitting would
> make more of a ring of holes around the profile as
> this can weaken
> the structure. It is better to have a step slightly
> out of alignment
> than to fit it alongside existing holes. Try to
> leave at least 2"
> between any existing drilings. If you need to cut
> any openings
> (doubtful in your case) then make sure the corners
> are rounded and
> NOT angled as this can lead to cracking.
>
> Hope that helps
>
> Joe.
>
> --- In , "Len den
> Besten"
> <lendenbesten at y dot dot dot > wrote:
> >
> > Does anyone have experience with drilling in the
> mast while it's
> up?
> > I want to drill holes and fasten maststeps made
> out of alu strip.
> > Question is how to prevent damaging cabels and
> such. The mast is a
> > rectangular alu profile a lot like this:
> >
> > /---------\
> > | |
> > | |
> > | |
> > | |
> > ---> | | <--- places where I'd like to
> drill obviously
> > | |
> > | |
> > | |
> > | |
> > \---|-|---/
> >
> > I'd like to think the cabel-tubes are in the
> corners for ease of
> > fastening but I guess that's wishful thinking.
> >
> > The original mastbuilder is not available and
> other professional
> > mastbuilders won't burn their fingers....
> > Anyone here who ever fastened maststeps or has
> ever looked into
> > their mast? Would an electric cabel-finder do any
> good?
> > Any hint or advice is welcome.
> >
> > Thanks in advance
> > Len,
> > S/v Present
>
>
>
>
------------------------ Yahoo! Groups Sponsor --------------------~-->
Give the gift of life to a sick child.
Support St. Jude Children's Research Hospital's 'Thanks & Giving.'
http://us.click.yahoo.com/5iY7fA/6WnJAA/Y3ZIAA/A1TolB/TM
--------------------------------------------------------------------~->
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/world-cruising/
<*> To unsubscribe from this group, send an email to:
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
|