@Steam Crazy posted:MELGAR, let's hear that Hancock air whistle!
John
John,
Here's the Hancock Air Whistle on New Haven #2043.
Hancock was in the business of making steam whistles. As railroads dieselized, the air whistle became their new product. It had three tones (E, A and C-sharp) and sounded better than standard single-tone diesel horns. The New Haven Railroad was the largest user of these whistles and every New Haven FL9 was equipped with a Hancock 4700. I don't have a video of an F3 horn but will post one later for comparison.
Also notice how slowly this Sunset model of #2043 was moving in the video. A very smooth-running model under conventional control.
MELGAR