The Arsenal VG-36 was a modified VG-35 powered by a Hispano-Suiza 12Y-51 delivering 1000hp of power, was armed with one Hispano-Suiza HS 404 20mm cannon and four 7,5mm MAC 1934M1939 machine-guns. It's interesting to point the shape of the streamlined radiator, which was very similar to the one that would later be used in the P-51B Mustang.
A prototype was built and was flown for the first time on 14th May 1940 and the fate of the prototype is unknown.
The Arsenal VG-39 was the final development of the VG-30 series to be flown. It started the flight test programme on 3 May 1940 and it differed from the regular VG-33 being powered by an Hispano-Suiza 12Z engine capable of delivering 1200hp of power with an ellongated propeller shaft, a revised wing structure which retained the profile and contours of the earlier wing and six wing-mounted 7,5mm MAC 1934M39 machine guns. When flight tested, the prototype achieved a maximum speed of 625Km/h (388mph) at an altittude of 5750m.
Sources:
1. https://en.wikipedia.org/wiki/Arsenal_VG-33
2. Salamander Books - The Complete Book of Fighters
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