G 1206: 60 km/h (37 mph)/100 km/h (62 mph) with Voith L5r4zseU2 transmission[4] *** 100 km/h (62 mph) Caterpillar engine and L5r4zU2 transmission also 90 km/h (56 mph) with MTU engine and Voith L54rzU2 transmission[4] */** G 1206-2: 50 km/h (31 mph)[1]
Power output
G 1206: 1,500 kW (2,000 hp)[1] or 1,570 kW (2,110 hp) with MTU 16V 396 TC14[4] */*** G 1206-2: 920 kW (1,230 hp)[1]
In 2007 a shunting specific variant, the G1206-2 was created and began production.
Four Caterpillar-engined locomotives hired from Angel Trains Cargo by Euro Cargo Rail were assigned to TOPSClass 21[6] due to their presence at times on the UK side of the channel tunnel. ECR assigned the codes FB1544 to FB1547 to these locomotives.[7][8][9][10]