SLOTSAJA RTP SLOT Graham, Thomas "Greenberg's Guide to Aurora Slot Cars", 1st Ed. Like most slot car motors, the Aurora pancakes ran on low voltage direct current. In 1963, Aurora introduced the now-legendary Thunderjet 500 motor, an innovative design by British-American engineer Derek Brand. The pancake motor and their Thunderjet and A/FX chassis, have frequently been revived by a host of other companies, as recently as 2020, the A/FX Magnatraction chassis with an extra traction magnet, and detailed bodies were reproduced under the name Auto World by Round 2 LLC. HO market for over a decade, By the early-1970s Tyco's inline motors had become sophisticated enough to challenge Aurora's pancake cars for the HO market. Braun, Gregory (2007). "HO Racing History". Some build their own custom track layouts, including city street circuits, or countryside road circuit with scenery, some combined with an electric train layout. Others race in competition at the few remaining commercial HO scale tracks.|Kids, Work and Slot App With Bonus Games