David Olson was named interim CEO of Shadin Avionics, St. Louis Park, Minn., replacing Allan Kramer who resigned Oct. 8 after only five months in the position. The company said Olson has management experience in the aerospace and defense industry both in the United States and internationally. Shadin Avionics manufactures fuel management systems, engine management systems, altitude management systems, RVSM air data computers and data converters/concentrators.