TF-104G 28+31 "Blue Boelcke" leading 20+01 on April 30, 1983 special marks JaboG 31 "Boelcke" for last F-104 flight with JaboG 31 and 25th anniversary of JaboG 31 on April 30, 1983 JaboG 31 converted to the Tornado the same year. copyright © Hans-Peter Jans