Although I don't like these multi-engined trains this had a combined tractive effort of 115,422 lbf. A good bit more than the LNER Garratt at 72, 940 lbf but still short of a Big Boy at 135.735 lbf. Was this a UK record or has it been beaten in the heritage era? If only they had added the K1, as well. That would have brought it up to a good 147, 502 lbf, which I'm sure would have been a British record.