[pianotech] New string broke twice

[Albert Picknell]

--- On Wed, 7/13/11, Ron Nossaman <rnossaman at cox.net> wrote:

> Out of curiosity, I did what you should have done. Not
> having a speaking length, I very approximately constructed
> one. Going with a winding length of 30 3/4", and bare ends
> of 1/2" each, I got 31 3/4", or about 806mm. Longer bare
> ends would make a longer speaking length, which would have
> been even worse than what I got. So the G#-2, with 0.040"
> core and 0.118" overall wrap comes to pitch at around 304
> lbs, which is very near JD's result by similar method.
> Sanderson's break% formula puts it at 78%, which is
> guaranteed to break...
> 
> Ron N

I did the same thing Ron did, also out of curiosity, and got the same result.  Those strings didn't stand a chance.

Bert