I have experienced such "smoke" once on DQ. Beautiful picture.

Posted by Akshay Marathe on 2007 Nov 30 08:05:42 +0000

Yes. This train gets a WCAM-1 regularly. A couple of other trains from Pune to WR area also get WCAM-1.

Posted by Akshay Marathe on 2007 Nov 30 08:04:05 +0000

Are WCAM-1s seen on Bhor Ghat regularly? Ankit Bharaj.

Posted by Gallery Administrator on 2007 Nov 30 06:30:14 +0000

Sid and I had also seen this kind of smoke comming out of the bogie of a BTPN rake at Sarojini Nagar. The brake shoe seemed to be defective and was constantly rubbing against the wheel, emitting sparks and smoke. Ankit Bharaj.

Posted by Gallery Administrator on 2007 Nov 30 06:29:07 +0000

Does this train regularly gets WCAM1? Dushyant Jani.

Posted by Gallery Administrator on 2007 Nov 30 06:26:55 +0000

Another superb shot.

Posted by Arzan Kotval on 2007 Nov 30 05:12:35 +0000

Superb shot.

Posted by Arzan Kotval on 2007 Nov 30 05:11:09 +0000

Thanks Sir, did not think at first glance that so much smoke might come out from the brakes.

Posted by Rahul on 2007 Nov 30 04:11:36 +0000

Not exactly a brake-binding scenario, I would say. The driver just started to apply the brakes during the descent to keep a control over the speed and the first result is the appearance of "smoke" at the loco wheels. Nevertheless, a fantastic picture of such a "smoking" phenomenon.

Posted by M S M Saifullah on 2007 Nov 30 01:54:51 +0000

Certainly an informative picture. The "smoke" is because of production of microscopic particulate matter due to the effect of friction between wheel and the cast iron brake pad. When the brakes are applied, the brake pad which is softer, disintegrates faster. During disintegration, the frictional heat oxidizes the softer cast iron brake pad and what you see as "smoke" is nothing but this iron oxide particulate suspension in air. Not surprisingly, the oxidation of iron occurs at the wheel-brake pad interface and therefore one sees the "smoke" coming from the wheels. Needless to add that inhaling this "smoke" is injurious to health :-)

Posted by M S M Saifullah on 2007 Nov 30 01:51:52 +0000