Su-15 Flagon

The Flagon was a high-speed, all-weather, specialized air defense fighter. It has been replaced in Soviet service by the Su-27 Flanker**.

The Flagon's mid-mounted wing had two shapes during its production run. The Flagon-A/B/C versions retained the pure delta with 60-deg leading edge sweep of the earlier Su-9/Su-11 Fishpot**. Beginning with Flagon-D, the outer section sweep was reduced to 47 deg by extending the chord, which aided controllability at high angles of attack and low...