 From 1898 some locos were rebuilt with pressure boilers thus when an additional ten T26s (numbers 1250–1259) were built in 1902 these were fitted with the new boilers as standard.The GER used air brakes but, when introduced, more than half the T26 locomotives were additionally fitted with vacuum brake ejectors for operating over the lines of other railway companies.T26s were particularly associated with the movement of horses by rail to and from Newmarket Racecourse, and thus travelled widely.