Never was an mtu engine so celebrated by the public. In May 1933, the 'Hamburger Flyer' high-speed diesel train, powered by the GO-5, entered Hamburg main station to rapturous applause. It had just completed the Berlin-Hamburg line in less than 21/2 hours - at the time, a sensation. Karl Maybach's achievement was not just development of the GO-5 engine with 410 HP. Besides equipment in the immediate periphery of the engine such as the mountings, the air and fuel supply lines, the exhaust pipework and the engine cooling system, he had also developed the vehicle cooling system and the transmission.