schwere Flak-Abteilung 121 (o)

Formed 26 Aug 1939 in Berlin-Lankwitz from parts of I./Flak-Regiment 12, with 1. - 5. Batterien (1. - 3. schwere and 4. - 5. leichte). Until Jul 1942 known as Reserve-Flak-Abteilung 121, and until mid-1943 as gem.Flak-Abt. 121.

In Jul 1942 5./gem.121 became 2./717.

Stab/gem.121 became Stab/214 in mid-1943, and 2. - 4./gem.121 was disbanded. The Abteilung was reorganised/reformed as a schwere Flak-Abt. in Dec 1943:

Stab/s.121 from 1./gem.121
1./s.121 from s.Flak-Bttr.zbV 5533
2./s.121 from s.Flak-Bttr.zbV 5534
3./s.121 from s.Flak-Bttr.zbV 5535 (RAD)
4./s.121 from s.Flak-Bttr.zbV 5536
5./s.121 from s.Flak-Bttr.zbV 5537
6./s.121 from s.Flak-Bttr.zbV 5538
7./s.121 from s.Flak-Bttr.zbV 5572 (from Oct 1944)
8./s.121 from s.Flak-Bttr.zbV 5573 (from Oct 1944)
9./s.121 from s.Flak-Bttr.zbV 10278 (RAD) (from Oct 1944)

Service:

• 1939/40 in Berlin
• 1941/43 in Luftgau VI*
• 1 Jan 1944 in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 300)
• 1 Feb 1944 in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 300)
• 1 Mar 1944 in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 300)
• 1 Apr 1944 in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 300)
• 1 May 1944 in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 300)
• 1 Jun 1944 in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 90)
• 1 Jul 1944 in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 90)
• 1 Aug 1944 in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 90) [Stab, 1.-4., 6./s.121]
• in Zeitz under 14. Flak-Division (Stab/Flak-Regiment 120) [5./s.121]

• 1 Sep 1944 in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 90) [Stab/s.121 with 6./s.121 (o), 7./s.323 (o), s.Heimat-Flak-Bttr. 222./IV, 223./IV and 257. - 260./IV]
• in Zeitz under 14. Flak-Division (Stab/Flak-Regiment 120) [5./s.121]
• in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 90) [1.-4./s.121 (o) under Stab/s.568]

• 1 Oct 1944 in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 90) [Stab/s.121 with 6./s.121 (o), 7./s.323 (o), s.Heimat-Flak-Bttr. 206./IV, 223./IV and 257. - 260./IV]
• in Zeitz under 14. Flak-Division (Stab/Flak-Regiment 120) [5./s.121]
• in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 90) [1.-4./s.121 (o) under Stab/s.568]

• 1 Nov 1944 in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 90) [Stab/s.121 with 6./s.121 (o), 7./s.323 (o), s.Heimat-Flak-Bttr. 206./IV, 223./IV and 257. - 260./IV]
• in Zeitz under 14. Flak-Division (Stab/Flak-Regiment 120) [5./s.121]
• in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 90) [1.-4., 7.-9./s.121 (o) under Stab/s.568]

• 1 Dec 1944 in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 90) [Stab/s.121 with 6./s.121 (o), 7./s.323 (o), s.Heimat-Flak-Bttr. 206./IV, 223./IV and 257. - 260./IV]
• in Zeitz under 14. Flak-Division (Stab/Flak-Regiment 120) [5./s.121]
• in Leipzig under 14. Flak-Division (Stab/Flak-Regiment 90) [1.-4., 7.-9./s.121 (o) under Stab/s.568]

• Feb 1945 an der Oder under 23. Flak-Division (Stab/Flak-Regiment 140) with 3 Batterien

* according to one source, reported in Italy in late 1942