I tend to agree with the other reply. The 3rd slide isn’t wrapped as tightly as on a normal Bb horn.
Speaking in Pythagoras fraction, which is close enough to get the sense of dimensions: The F extension on a Bb horn has to be 1/3 of the theoretical length of the Bb horn (the real horn is a bit shorter due to the effect of the wide bell). The same way the 3rd valve of the F horn shall be 1/5 of the F horn length. Compared to a Bb horn the 3rd slide of the F horn has this length: 4/3*1/5. The resulting 4/15 of the Bb horn length is rather close to the 1/3 (=5/15) of an F extension for the Bb horn. And that 4th valve is larger than the normal 3rd valve of an F horn. Klaus --- On Mon, 3/23/09, Dick Martz <rjmartz.li...@att.net> wrote: > From: Dick Martz <rjmartz.li...@att.net> > Subject: [Hornlist] Eric Hauser's Horn? > To: horn@music.memphis.edu > Date: Monday, March 23, 2009, 10:36 PM > Hi, Guys: > > I'm puzzled by a horn in a photo of Eric Hauser: > http://www.rjmartz.com/horns/Hauser/ > > It looks to me to be a single B-Flat horn with a fourth > valve perhaps intended as an F extension, however the > lengths of the third and fourth valve slides seem wrong. > Both appear to be too long for a normal third valve slide > for a B-flat horn and too short for an F extension. Actually > the fourth valve looks about right for an F horn third > valve. Any ideas? > > Also, does anyone recognize the other two people in the > photo? > > Thanks, > > Dick Martz > -- > > http://www.rjmartz.com/horns Horn Collection > > _______________________________________________ > post: horn@music.memphis.edu > unsubscribe or set options at > http://music2.memphis.edu/mailman/options/horn/yorkmasterbbb%40yahoo.com > _______________________________________________ post: horn@music.memphis.edu unsubscribe or set options at http://music2.memphis.edu/mailman/options/horn/archive%40jab.org
