Steinway hammer Bore Angles

[Clark Sprague]

Hi, Dale.  I know that the string angle in the tenor goes from 10 degrees to 0 at note 51 (at the strut), and that the string height changes all through the treble, although not dramatically.  It was the bass that confused me. 
    Jon,  I wasn't aware that there should be a fan in the angles in the bass.  I thought that you should just choose an angle that would work, and go with that.  Please enlighten me on this.
Clark A. Sprague, RPT

  ----- Original Message ----- 
  From: Erwinspiano at aol.com 
  To: pianotech at ptg.org 
  Sent: Monday, April 10, 2006 1:43 AM
  Subject: Re: Steinway hammer Bore Angles


    Hi Clark
     I have a list with all the original bore specs that came from a stwy source.  There is nothing on it remotely close to this except I believe all bass hammers are 5.5 degrees. The first tenor is probaly 10 degress.  I can look tomorrow if you need to know more than this.
     Dale

  Dale Erwin--Piano Restorations
  4721 Parker Rd.
  Modesto, Calif 95357
  Shop 209-577-8397
  cell 209-985-0990
  http://www.Erwinspiano.com 
  Specializing in the Restoration, Service & Sales of
  Steinway, Mason & Hamlin, & other fine pianos
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