Removing and Replacing Thwarts.
Frank Bethwaite
The removal of damaged thwarts and their replacement is a routine
procedure. Remove eight bolts, separate the glueline which joins
the envelope to the spigot with a sharp chisel inserted from the
bottom, and remove. Reverse to replace. Trimming to an exact fit
takes time.
Re carpet padding. It is essential to use a long-knap carpet, as
the long knap suppresses all turbulence. If, for example, you were
to use felt, it would pad the centreboard, but water would shoot
ten feet high when you were really moving.
Any carpet with a hessian backing will rot in two to three years.
We use a nylon bathroom carpet which has a plastic base, and glue
it in with contact cement. Nothing rots, nothing seems to
deteriorate. If it is necessary to remove the carpet for some
repair, it has to be chiselled out even after five years..