Swiss Anti Aircraft Troops - May 10, 1940

Organization

Just before May 1940 the command of the army could agree on the organization of the air defense troops (Fliegerabwehrtruppen). Eight AA batallions were formed with two to four batteries (so called Detachemente) each. The batteries with the numbers in the 80s were assigned six of the 75mm guns each, all other batteries twelve of the 20mm guns each.

On September 1, 1939 Switzerland had 36 20mm AA guns and 8 75mm AA guns [General45]. These figures conflict with the figures in [Kdt FF45] who talks about a mobilization with 24 20mm AA guns and 7 75mm AA guns [Kdt FF45, p20ff] and a few pages later he talks about 50 20mm AA guns and 12 75mm AA guns at the same date [Kdt FF45, p22ff].

During the last months of 1939 the number of guns increased to 131 20mm AA guns (+81) and 23 75mm AA guns (+11) [Kdt FF45,p23].

OOB of the AA Batteries 1.9.1939 [Kdt FF45]

Battery Guns Formed
20 4 x 75mm pre 1.9.39
21 4 x 75mm pre 1.9.39
22 6 x 20mm pre 1.9.39
23 6 x 20mm pre 1.9.39
24 7 x 20mm pre 1.9.39
25 10 x 20mm pre 1.9.39
26 7 x 20mm pre 1.9.39
27 10 x 20mm pre 1.9.39
28 Searchlights pre 1.9.39
29 Searchlights pre 1.9.39
30 20mm 10.9.39
31 10 x 20mm 3.10.39
Ortsflab Zürich 20mm  

OOB of the AA Batteries / Batallions 10.5.1940 [Kdt FF45]

The AA batallion 1 (Flab Abt 1) was positioned around the airfield of Emmen (close to Lucerne). Its task could also have been to protect the army reserve formed by parts of the 9th Division. Accordingly to [Kdt FF45] the batteries 32 and 34 also belonged to this batallion. I couldn't find these batteries on the map [Standort 12.6.40].

Batallion Battery Guns Remarks   Map Location (May/June)
1 (27.4.40) 84 75mm 17.5.40   Emmen
  22 20mm pre 1.9.39   Gisikon (LU)
  32 20mm 12.1.40   ??
  34 20mm 1.4.40   ??
  35 20mm 1.4.40   Emmen

The AA batallion 2 (Flab Abt 2) was positioned in the area of the Gempenplateau and Olten - Mellingen. It seems to have had the task to cover the movement of the French troops under Plan H.

Batallion Battery Guns Remarks   Map Location (May/June)
2 (13.5.40) 20 75mm pre 1.9.39   Gempen / Breitenbach
  21 75mm pre 1.9.39   Olten
  80 75mm 27.4.40   Gempen / Brislach
  28 Searchlights pre 1.9.39   ??
  29 Searchlights pre 1.9.39   ??

The AA batallion 3 (Flab Abt 3) was positioned in Bern. It had the task to protect the Swiss capital Bern.

Batallion Battery Guns Remarks   Map Location (May/June)
3 (10.7.40) 81 75mm 30.4.40   Bern
  33 Searchlights 22.5.40   ??
  Ortsflab Bern 34mm 11.4.40   Bern

The AA batallion 4 (Flab Abt 4) was positioned around Thun and seemed to have had the task to cover the airfield and other military installations in the Thun area. The battery No 50 was allocated to the 2nd batallion in June 1940.

Batallion Battery Guns Remarks   Map Location (May/June)
4 (13.5.40) 82 75mm 17.5.40   Thun
  86 75mm 18.5.40   Thun
  31 20mm 3.10.39   Gümligen
  36 20mm 18.5.40   Thun
  50 20mm 26.5.40   Porrentruy

The AA batallion 5 (Flab Abt 5) probably had to cover the airfields of Payerne, Avenches, Utzensdorf, Bözingen, Grenchen and Kestenholz.

Batallion Battery Guns Remarks   Map Location (May/June)
5 (18.5.40) 85 75mm 17.5.40   Solothurn
  26 20mm pre 1.9.39   Payerne
  27 20mm pre 1.9.39   Solothurn
  37 20mm 18.5.40   Avenches

The independent batteries seem have to be allocated to the army corps and to specific cities. Battery 30 seems to have been allocated to the 2nd batallion and battery 38 to the 3rd batallion

Batallion Battery Guns Remarks   Map Location (May/June)
Independent 83 75mm 17.5.40   Lausanne
  23 20mm pre 1.9.39   Bözberg (2nd corps ?)
  24 20mm pre 1.9.39   Oberentfelden (AG) (3rd corps ?)
  25 20mm pre 1.9.39   Goldau (4th corps ?)
  30 20mm 10.9.39   Gempen / Grellingen
  38 20mm 18.5.40   Bern
  Ortsflab Zürich 20mm pre 1.9.39   Zürich

This leads to a effective number of guns of approx. 180 20mm AA guns (12 guns in each of the 15 batteries), 54 75mm AA guns (6 guns in each of the 6 batteries) and 24 34mm guns in the Ortsflab Bern and an unknown number of 20mm AA guns in the Ortsflab Zürich.

[Rutschmann89] shows another allocation for May 1940:

[Last Update 30.08.2010]