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Cobra deliveries delayed

filed on: 14.12.2004 (14th Dec 2004)

Following the Combino crisis, there has been a full investigation of the Cobra design to ensure the same errors were not made here (both designs are based on Alcan's Alugrip system). Following this, Bombardier have revealed that some problems may occur in the second half of the lives of these trams (which are expected to last 35 years). The design is to be strengthened accordingly.

6 Cobras (3001-6) were delivered in 2001, with the start of series delivery (3007-74) now expected in late 2005.

For info on the Combino crisis see: 13.03.2004 and 30.06.2004. All cities that bought them have since seen most if not all Combinos return to traffic. Their safety is assured by an interim repair package and regular checks. A more permanent repair program will begin next year.

Website comment: Readers are remined that the original Cobra design saw wrapped polmer thread being used for the body segments, and that this was dropped by ADtranz in 1998 because it was, apparently, not sufficiently strong. Let us hope that Bombardier gets it right this time!

This news item is from the 2004 newslog.

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