96TS Jubilee Underframe Modification Project- Drawgear

The Jubilee line Underframe Modifications Project (JUMP) is currently undertaking an option definition/feasibility exercise to correct structural and drawgear issues on the Jubilee line fleet. This questionnaire is the start of the project’s early market engagement to inform the options and understand the market capability and capacity to deliver a solution.

At the feasibility stage JUMP assumes that a contract will be awarded to a single supplier that will include the following works:

• Modify or replace the drawgear release elements across the entire Jubilee line fleet (except for DM Autocoupler positions). Options include, but are not limited to:

o Redesign of current mechanism

o Replacement of drawgear with alternative design

• To demonstrate that the proposed solution works in a collision scenario and does not fail in normal operations
• To demonstrate adequate proof and fatigue load requirements will be met through appropriate calculation at the design stage
• Production of prototype units for testing and analysis
• Static and dynamic testing of proposed solution to provide evidence that proof and fatigue load requirements have been met
• Manufacture of production units to replace entire fleet (except for DM Autocoupler positions)
• Replace coupler support bracket and inner longitudes across the entire fleet