Drawing for a whistle

Hi, I was wondering if anybody has a drawing for a 2 in scale traction engine whistle please, or if anybody knows where I can get one.

Many thanks

Garry

Macc Model link have several but as to there suitability I can't say, I had one similar to to the last one on my 2" TE and it looked the part

H

Try Kennions

Sheet No 8 for MJ Engineering's 2" Fowler has a scale looking whistle, sound doe snot always scale too well.

One I prepared earlier

Thanks everyone.

I have not used one (too small for my engine) but lots of tiny steam whistles with valve are for sale on ebay at a reasonable price.

Paul

Edited By Paul Lousick on 14/01/2021 09:32:37

Edited By JasonB on 14/01/2021 10:04:57

I made a 2 inch siren for mine and it drives the local dogs mad but I can’t hear it!!. Some things just don’t scale.

The frequency of a whistle is controlled by its length and the shorter it is, the higher the pitch. Which is why little whistles annoy dogs and hurt the ears of small children. The diameter of the tube effects the loudness/volume of whistle.

I am in the process of designing/making a whistle for my engine and to get a deeper sound, contemplating a whistle with a dividing plate in the tube, making the sound cavity longer in a short tube. A bit like a chime whistle but with only one music note. ( I will post an update after it is made and tested)

Paul

What a neat idea! Let us know if it works. I suspect you'll need a pretty good joint twixt divider and tube

No more than that used in a chime whistle Duncan