I'm working my way through B K Cooper and R Antell "A Tribute to the
London and South Western Railway."

Okay you aren't interested in the barrage ballon they wheeled round
Feltham Goods yard equiped with 20 x 1,000watt lamps with refelectors
which proved the value of flood lights, two fields away from Hindenburg
at Feltham Air Park, but how about this:

Was the T7 a 4-2-2-0 or is that a misprint and if so what does it mean?


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Was the T7 a 4-2-2-0 or is that a misprint and if so what does it mean?

It seems it was. It simply means that rather than a two pairs of coupled
driving wheels as on a 4-4-0 it had two pairs of independently driven
wheels.