page on milavia.net Aero L-159 ALCA specs & photo at Flugzeuginfo.net L-159 photos at Photo-Planes.com L-159 avionic upgrades by Vdot Systems 1990s Czech and Czechoslovakian military trainer aircraft 1990s Czech and Czechoslovakian fighter aircraft 1990s Czech and Czechoslovakian attack aircraft Single-engined jet aircraft Aircraft first flown in 1997