AirFAN
TS Member
After watching a video on YouTube a noticeable 'clinking' noise is heard just as the train enters the tunnel.
Heard at 1:31 and again at 2:22
[youtube]http://www.youtube.com/watch?v=inbTPUii_8s[/youtube]
It's something I've always subconsciously noticed and thought the noise was some how related to the train entering the tunnel.
Then I looked at other videos on YouTube of B&M dive machines and noticed it's a common occurrence.
Heard in this video at 0:08, 0:13, 0.53, 1:06, 1:38 etc.
[youtube]http://www.youtube.com/watch?v=BJHmP-6Og-0[/youtube]
Then I looked at a hyper coaster and the noise is there again. This time faintly at 0:40, 0:43, 0:47.
[youtube]http://www.youtube.com/watch?v=TJuc7OcqIYE&feature=related[/youtube]
It's clearly more identifiable on the dive machine.
What is it?
Heard at 1:31 and again at 2:22
[youtube]http://www.youtube.com/watch?v=inbTPUii_8s[/youtube]
It's something I've always subconsciously noticed and thought the noise was some how related to the train entering the tunnel.
Then I looked at other videos on YouTube of B&M dive machines and noticed it's a common occurrence.
Heard in this video at 0:08, 0:13, 0.53, 1:06, 1:38 etc.
[youtube]http://www.youtube.com/watch?v=BJHmP-6Og-0[/youtube]
Then I looked at a hyper coaster and the noise is there again. This time faintly at 0:40, 0:43, 0:47.
[youtube]http://www.youtube.com/watch?v=TJuc7OcqIYE&feature=related[/youtube]
It's clearly more identifiable on the dive machine.
What is it?