The numbers are a little skewed.
- Bloch MB.150. Specified 1934. First flight 1937. Introduced 1939.
- Morane-Saulnier M.S.406. Specified 1934. (same as the MB.150). First flight 1938. Introduced 1938.
- Arsenal VG-33. Specified 1936. First flight 1939. Introduced 1940.
- Dewoitine D.520. Specified 1936 (same as the VG-33). First flight 1938. Introduced 1940.
- Caudron C.714. Specified 1936 (same as VG-33). First flight 1936. Introduced 1940.
- Koolhoven F.K.58. Specified 1937. Ordered from Dutch firm. First flight 1938. Introduced 1940.
There were 3 different programs. Due to technical progress that resulted in two of the programs. The 3rd (Koolhoven) was the realization that foreign types would be needed to make up for shortfalls in French Production. The Caudron C.714 was problem with French doctrine/philosophy/??? Cheap fighters were never a good idea and French with visions of saving Francs in their eyes, were all over the "cheap" weapons of many types, both air and surface. The Dewoitine D.520 was
supposed to
replace the M.S. 406.
H-S was not suppling engines of enough power to keep up with the British and French.
Had France been able to make enough fighters of their own the Koolhoven would never have been ordered. The Koolhoven was also delayed when the H-S radial engines turned out be truly, truly horrible engines which meant that the planes that were designed for them had to be repowered by G-R engines which meant both delays in design and not enough engines to go around in many other French aircraft.
Was the French Army equally inefficient? Did France really need twelve tank types, including eight different models from one manufacturer alone, Renault?
The illustration is somewhat deceptive.
Renault...........year............built
AMR 33..........1932/33....123
AMR 35..........19336........167
AMC 34..........1934.............12
AMC 35..........1934.............57
R-35.................1936........1540
D1.....................1932..........160
D2.....................1932/33....100
B 1/B 1bis......1920s?..........405
FCM F2C..........1921/23......10
FCM 36............1938...........100
Hotchkiss 35...1936.......1200
Souma S 35.....1935.........440
Now this covers 5 ton tanks to 75 ton tanks (also a bit deceptive as there were only 10 of the old 1923 F2C still in existence.
The AMR 33 and AMC 34 were
improved into the AMR 34 and AMC 35 models. But then the Germans also
improved some of their tanks. Pz I got an extra road wheel and changed from a 4 cylinder air cooled engine to a liquid cooled 6 cylinder engine without being called out as a separate type. Germans played with different types of suspension and numbers of road wheels on the Pz II and Pz III tanks.
French took a lot of time to get tanks into production and sometimes they were working on the "new" model on the drawing boards as the older versions were entering production (learning from the Prototypes)
I would note that while the illustration looks impressive some of the vehicles were old and built is small numbers. The 1/2 tracks were built in 1928-31 and only 100 of them were built. The Laffly 4 wheel cars are WW I rebuilds. kept the armored body and put it on the new chassis/engine.
The 6 wheel Laffly was built in 1937 onward for colonial use and could carry 4-6 infantry and/or supplies in the back.
The Panhard 165/175 was also for colonial use and were 4 x 2.
Basically the French entered WW II with 4 tanks in production, the Renault R-35/40. the Hotchkiss R-35/38/39? the Souma and the Renault B-1. They were not placing orders for any of the older tanks and had not Germany invaded in 1940 some of the older ones (some had already been sent to NA) would have been scrapped or sent overseas.
French tanks development and production was bad in the 1930s but not as bad as that illustration makes it look.
Meanwhile, excluding captured Czech tanks (designated Panzer 35 and 38), the Germans invaded France with only four domestically produced tank types: 523 Panzer Is, 955 Panzer IIs, 349 Panzer IIIs and 278 Panzer IVs.
While the Panzer 35 was out of production the Panzer 38 was in full production and would stay in production for several years and the chassis would stay in production until at least 1945. Germans went off on a several tangents themselves. Like the rather comical attempts to build German equivalents of the Matilda I.
24 ton tank with two 7.9mm machine guns. 30 built in 1942.
There was a Pz 1C that had a gun based on the MG 151 but firing the 7.9mm AT rifle round, 40 built in 1942 but design work started in 1939.
Panzer II got the same treatment.
While production was not done until 1942/43 the prototype was running in 1939.
German tank development was not as smooth as it is sometimes portrayed.
Lets not forget the Pz V, Granted it was only used for propaganda.