Westbury Thunderbird
Alan Peters
An evening 'down West'
Mark Lynam
Locomotive 99001
Paul Negus
Wikipedia records that the 99 Class produce an incredible 8270 hp in electric mode and a handy 2400hp from their Cummins diesel engine. It also states that:
"The chief executive of GBRf, John Smith, reports that the Class 99 will outperform the Class 66 at low speeds, despite having a less powerful diesel engine. The greater tractive effort means that the Class 99 on diesel power can deliver more power at the rail than the 66.”
Herewith three images from Derby Litchurch Lane Works.