2017. Rockwell International also spun off its two automotive divisions (light vehicles division and heavy vehicles division) as one publicly traded company, Meritor Automotive, based in Troy, Michigan, which then merged with Arvin Industries to form Arvin Meritor. That company is now known as Meritor, Inc. In 1996, Rockwell International sold Graphic Systems (formerly Miehle-Goss-Dexter), an Illinois-based newspaper and commercial printing press manufacturer, to its internal management team Stonington Partners as part of a new corporation for US$600 million. In 2001, what remained of Rockwell International was split into two publicly traded companies, Rockwell Automation and Rockwell Collins, ending the run of what had once been a massive and diverse conglomerate. The split was structured so that Rockwell Automation was the legal successor of the old Rockwell International, while Rockwell Collins was the spin-off. In the end, the result had been four spin-offs and three sales combined from Rockwell's nine divisions. The various Rockwell companies list a large number of firsts in their histories, including the World War II-era P-51 Mustang fighter and the B-25 Mitchell bomber, and the Korean War-era F-86 Sabre fighter jet, as well as the Apollo spacecraft, the B-1 Lancer bomber, the Space Shuttle orbiter, and most of the Navstar Global Positioning System satellites. Rocketdyne, which had been spun off by North American in 1955, was re-merged into Rockwell, and by that time produced most of the rocket engines used in the United States. Rockwell also purchased the Aero Design and Engineering Company from William and Rufus Travis Amis. Rockwell redesigned the company's Aero Commander aircraft, introducing its new design as the Rockwell Commander 112 and Commander 114. The company developed a desktop calculator based on a MOSFET chip for use by its engineers. In 1967 Rockwell set up its own manufacturing plant to produce them, starting North American Rockwell MicroElectronics Corp. (called NARMEC). This would later become Rockwell Semiconductor. One of its major successes came in the early 1990s when it introduced the first low-cost 14.4 kbit/s modem chipset, which was used in a huge number of modems. Collins radios were fitted to 80% of the airliners which were based in first-world countries. Collins designed and built the radios that communicated the Apollo moon landings and the high-frequency radio network that allows worldwide communication with U.S. military aircraft. Rockwell's Rocketdyne division designed and built the third stage of the Minuteman intercontinental ballistic missile, and the