Re: Steam Whistles

[Roderick Smith <rodsmith@werple.net.au>]

I can't find any of my steam-whistle data.  VR Newsletter had an article,
and so did USA 'Trains'.  They were more concerned with chords than with the
mechanical aspects.  However, since the note produced by a brass instrument
depends also on the method of blowing, I suspect that the formula must have
even greater complexity.

Donald R Smith wrote:

> Is there a formula for the note to be produced by a steam (or Compressed
> air) whistle?
> I imagine that it must be a function of the length of the skirt, its
> diameter, the size of the opening where the steam comes out and to some
> extent, the pressure.
> Surely there must be some design parameters to consider when looking at
> size, type and usage.

--
Regards
Roderick B Smith
Rail News Victoria Editor