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Re: Oakway SD60 horns
Author: Matt Farnsworth
Date: 03-24-2010 - 15:00

I don't know the origin of the law, but the Canadian Bord of Transportation mandates that locomotive horns in Canada must play a D# Minor chord. The K series of horns were originally developed for use in Canada, and so they all played D# Minor chords. In 1975 the K5L was tuned for use by Amtrak to play a B major 6th, and so the A for Americian tuned was added to the designation. (Up until 75 the K horns had "Made in Canada" cast into the back caps.) A K5L/K5H plays D#,F#,A#,C,D#. A K5LA/K5HA plays D#,F#,G#,B,D#.

Here's two videos to compare the two:

K5L Canadian tuned, on a BC rail unit.

[www.youtube.com]

K5LA Americian tuned on an Amtrak Cascades unit.

[www.youtube.com]

Matt
Moscow ID

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Subject Written By Date/Time (PST)
  Oakway SD60 horns BN Oly 03-23-2010 - 21:22
  Re: Oakway SD60 horns Matt Farnsworth 03-24-2010 - 10:12
  Re: Oakway SD60 horns TomL 03-24-2010 - 13:54
  Re: Oakway SD60 horns OPRRMS 03-24-2010 - 14:07
  Re: Oakway SD60 horns Matt Farnsworth 03-24-2010 - 15:00
  Re: Oakway SD60 horns OPRRMS 03-24-2010 - 18:46
  Re: Oakway SD60 horns BN Oly 03-24-2010 - 19:48
  Re: Oakway SD60 horns Matt Farnsworth 03-25-2010 - 00:29
  Re: Oakway SD60 horns OPRRMS 03-25-2010 - 13:11
  Re: Oakway SD60 horns Eric K 07-29-2012 - 13:55


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