May I ask for the graphs with respect to tractive effort/ speed characteristics of the following types of rolling stock? Thank you. 1) 1967 stock 2) C69 stock 3) 1973 stock 4) D78 stock 5) 2009 stock 6) S7 stock

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TfL Ref: FOI-1834-1920

Thank you for your request received by Transport for London (TfL) on 18^th September 2019 asking for information about London Underground rolling stock.

Your request has been considered in accordance with the requirements of the Freedom of Information Act and our information access policy. 

Specifically you asked:

“May I ask for the graphs with respect to tractive effort/ speed characteristics of the following types of rolling stock? Thank you.

1) 1967 stock

2) C69 stock

3) 1973 stock

4) D78 stock

5) 2009 stock

6) S7 stock”

I can confirm that we hold some of the information you require. The first attachement with this email (Curve No. 9-6848(LT118)) applies to the 1973 stock and the D78 stock. The second attachment (Curve 1A-115-1) applies to the 1967 stock. The graph below is for the S7 stock. We do not hold graphs for the C69 stock or 2009 stock.

If this is not the information you are looking for, or if you are unable to access it for any reason, please do not hesitate to contact me.

Please see the attached information sheet for details of your right to appeal as well as information on copyright and what to do if you would like to re-use any of the information we have disclosed.

Yours sincerely,

David Wells

FOI Case Officer

FOI Case Management Team

General Counsel

Transport for London

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