1938 - bought 10 Bf109Ds (Jumo 211Da engine with C-1 weapons)
1939/40 - bought 50 Bf109E-1s and 30 Bf109E-3s
1940 - bought license to build 290 MS.406 (82 designated D.3800, 207 as D.3801 with larger engine)
This, as far as I can get it is the order of Battle of the Schweizerische Flugwaffe in May and June 1940. It is divided into three "Air Regiments", seven "Air Groups" and 21 Squadrons. The operational air force consists of six C35 squads, two D27 squads, three squads flying 109Es some still also using 109Ds, and two only just operational squads using the Swiss version of the Morane Ms405/6.
Fl. Rgt. 1
Fl.Abt.1
1 EKW C35 Grandcourt Operational C35 squad
2 EKW C35 Belp Operational C35 squad
3 EKW D3800 Belp Working up
Fl.Abt.2
4 EKW D3800 Thun Working up
5 EKW D3800 Thun Working up
6 109Emil Thun Operational 109E squad May-June 1940
Fl.Abt 3
7 109Emil Thun Working up
8 109Emil Thun Working up
9 109Emil Thun Working up
Fl. Rgt. 2
Fl.Abt. 4
10 EKW C35 Belp Operational C35 squad
11 EKW C35 Utzendorf Operational C35 squad
12 D27 Belp Operational D27 squad
Fl.Abt. 5
13 EKW D3800 Geneva/War Bases Operational on D3800 by end of May 1940
14 EKW D3800 Geneva/War Bases Operational on D3800 by end of May 1940
15 109Dora Payerne Operational 109D squad May-June 1940
Fl. Rgt. 3
Fl.Abt. 6
16 EKW C35 Olten Operational C35 squad
17 EKW C35 Kloten Operational C35 squad
18 D27 Kloten Operational D27 squad
Fl. Abt. 7
19 EKW D3800 Dubendorf Working up
20 EKW D3800 Dubendorf Working up
21 109Emil Dubendorf Operational 109E squad May-June 1940
EKW C35 = Swiss machine based on various Fokker types
BF109 Jumo approx= 109D1 codes J-301 to J-310
BF109 DB = DaimlerBenz engine approx= 109E3 codes J-311 to J-390
EKW D3800 = Swiss licensed MS405/6 hybrid