Our Officer Career Database at:
http://www.ww2.dk/lwoffz.html
has the following about this fellow:
RUPP, Friedrich. (DOB: 26.11.17 in Freiburg/Breisgau). (R, DKG). 09.39 Aufklärungsflieger with 1.(H)/Aufkl.Gr. 31 (to at least 06.40). 10.40 training as a fighter pilot. c.04.41 assigned to 7./JG 54 and/or 9./JG 54 after transferring to the Jagdwaffe. 01.07.42 Lt., awarded the Ehrenpokal. 12.08.42 Lt., appt Staka 7./JG 54 (to 02.09.42). 06.11.42 unhurt? - Bf 109 G-2 (White 7) damaged by a P-39 vic Beresnonuessa. 16.11.42 Lt., awarded the DKG. 24.01.43 Lt., awarded the Ritterkreuz. 15.05.43 Lt. and acting Staka 7./JG 54 KIA – in Bf 109 G-4 (White 2 +I) that crashed into the North Sea following an engagement with a B-17 bomber formation SW of Helgoland. Mid-06.43 remains washed ashore vic Cuxhaven. 19.06.43 Buried. Credited with 52 air victories.
We hope that this helps
LdZ
DGS