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Union Pacific 3 note hancock whistle notes
https://www.rypn.org/forums/viewtopic.php?f=1&t=42750
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Author:  jd johnson [ Mon Nov 26, 2018 7:55 pm ]
Post subject:  Union Pacific 3 note hancock whistle notes

Read here a while ago that the Big Boy, Challengers, and Northern all used the same 3 note Hancock whistle.
Would like to know some dimensions OD, ID and overall length of the whistle and what the notes are.

Planning to build one for 1-1/2" scale some time in the future but want an authentic sound.

Can you all help?

Thanks in advance,

JD Johnson, Morehead and North Fork Railroad Historian

Author:  Jersey steam [ Mon Nov 26, 2018 8:24 pm ]
Post subject:  Re: Union Pacific 3 note hancock whistle notes

OD---------6 3/8"

Arch Height-------2 1/2"

Chamber Lengths-----12 1/2"------15"-------18"

Live Steam Magazine Nov. 1975--Prototype Whistle Dimensions by Mike Decker, P 41


Bernie

Author:  kbarnett [ Tue Nov 27, 2018 8:12 am ]
Post subject:  Re: Union Pacific 3 note hancock whistle notes

Hey James, Railroad Supply sells the UP whistle. I have one on my Hudson.

Author:  jd johnson [ Tue Dec 18, 2018 2:04 pm ]
Post subject:  Re: Union Pacific 3 note hancock whistle notes

Thank you for the kind replies. I would like to know the dimensions of the main air tank on the Union Pacific Big Boy. OD, and overall length.

Can any of you help me?

Thanks,

JD Johnson

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