Eritrean Air Force, Eritrea, 2010. Sukhoi Su-27 Flanker Diecast Model. Sukhoi Su-27 Flanker 12″ 8″. Sukhoi Su-27 Flanker Designed by the Soviet Union to challenge the superiority of fourth generation US fighters such as the F-15 Eagle, the Su-27 was first flown on May 20, 1977.