Shadin Avionics, St. Louis Park, Minn., won a $3.4 million contract with the U.S. Air Force to provide a digital fuel quantity computer that will replace the existing fuel quantity conditioning unit on all A-10 twin-engine jet aircraft. The Shadin unit will support the extended service life of the A-10/AO-10 aircraft. Shadin said the unit is a direct replacement for the existing fuel quantity conditioning equipment, yet offers updated capabilities or auto calibration, offers extended MTBF and 1553 data buss output capability for future growth requirements. The award product delivery began in October and will continue through 2008.