A classic Santa Fe horn on Santa Fe 941

bnsf (nee atsf) 941 leads a roadrailer train into saginaw, texas on 3/10/07. bnsf 941 depicts a classic supertyphon horn which was so distinct on the santa fe. note: the author also shot a photograph of this very locomotive leading a stack train in farwell, texas, back when it was atsf 941 in early 2003.

Category:

Travel & Events

Tags:

• santa
• fe
• train
• horn
• atsf
• trains

[RCdash9]

I like that RS3L horn. It reminds me of Conrail.

[moon47mars]

I think that is a Leslie RS3L.

[masterownerlml]

That engine has seen better days...

[JetMechMA]

He proposed that this misconception might occur because the intensity of the sound increases as an object approaches and decreases once it passes and that this is misperceived as a change in frequency."

[JetMechMA]

"Craig Bohren pointed out that textbooks erroneously state that the observed frequency increases as the object approaches an observer and then decreases as the object passes the observer. The observed frequency of an approaching object declines from a value above the emitted frequency, through a value equal to the emitted frequency when the object is closest to the observer, and to values increasingly below the emitted frequency as the object recedes from the observer.

[JetMechMA]

@unionpacifictrain: i like the going away sound of the horn the most!

JM: Some viewers might not know about, "The Doppler Effect." Doppler is the scientist who defined this effect and it is that sound....or light...is affected by the relative speed between two points. Between fixed points the speed of sound (or light) will be the same, about 1100 feet per second for sound. But when at least one of the sound generators is moving, the speed is either added or subtracted, it changes the sound.

[JetMechMA]

Hey, whats going on there? It looked like the truck trailers being piggy-backed were hooked directly together and had a set of train wheels attached somehow. Yes?

[unionpacifictrain]

i like the going away sound of the horn the most!

[BoudiccaBlanc]

Thank you for sharing; "thumbs up" :-)

[BNSF9250]

@pengapop12 shutu p

[nashgallo]

I love Santa Fe's GE horns