In mast roller furling problem

[KZW]

The later models of the C-310 have "fixed" vang. It can only be adjusted by rotating the barrel of the vang by hand. Not very useful. Catalina went to the fixed vang due to folks not setting the correct boom angle.

 

[Muttondressedaslamb]

The later models of the C-310 have "fixed" vang. It can only be adjusted by rotating the barrel of the vang by hand. Not very useful. Catalina went to the fixed vang due to folks not setting the correct boom angle.

Stupid is As Stupid Does; Forrest Gump

 

[Muttondressedaslamb]

Thought I would add this nice article about in mast furling:
(Explains why loosening vang works)
http://www.sailboat-cruising.com/in-mast-furling.html

Thanks for the link. They seemed to imply that the boom should be parallel to the foot of the sail while reefing or furling. Mine was set like this. Might have contributed to the problem

 

[KZW]

That definitely won't help you. The boom should be angled up at least 7 degrees

 

[BC Bernie]

I'm sure this question has come up before but I couldn't find the thread: my furling main was taken off for the winter and now there is lots of noise coming from, I presume, the foil or something within the mast. Is that normal? Any recommendations? I had read somewhere that some place padding about half way up the mast or similar.
I emailed Charleston Spar (or the company that took it over) so hope to get a reply this week.

 

[JamesG161]

The boom should be angled up at least 7 degrees

The angle of boom is determined by the CUT of your main sail. My foot to luff angle is ≈80° so my boom is ≈10°.

The reason for releasing the main sheet and vang is...

The boom car cannot force the main, at an angle, to cause a jam at the foot!

My best description is that the boom "floats" while the main freely furls.

Maximum furled sail diameter is at the FOOT!

You can even see my mast "prebend" with the gold and purple lines.

Jim...

PS: My pict says Minimum diameter of sail, but I meant was "minimized" while furling.

 

[KZW]

I can only tell you that Charleston Spar, the maker of the C-310 Mast and furling system, told me "at least 7 degrees". I didn't make the number up.