[Rhodes22-list] What's the centerboard made of?

[Tom Hyatt]

I am having an issue with my centerboard not dropping when I release the
line. All of the blocks seemed to be operating correctly. So I pulled the
cap and removed the centerboard (with major difficulty)

It appears that the board is rubbing against the opening where the fattest
part of the board fits into the centerboard slot. I think I want to sand
down the centerboard in this area but I have no idea what its composition
is and how much can be sanded safely (if at all).

The other option is to sand inside the slot but that seems to present more
issues with getting any sort of tool up there. Hand sanding that part would
be an option.

Any help would be appreciated.

Tom Hyatt
Eliza Jane, 1978
Middle River, MD