A lot of air forces indeed were specifying better props, and were not trying to saddle the future designs with 60 mph stalling speed like RAF did it in better part of the 1930s.No but you said nothing everything had to be the size of a Hurricane. There was a reason the Hurricane was as large as it was. Because of the poor choice of propeller it had a rather similar take-off and landing performance as the Gladiator.
So somethings depend on requirements other than speed-climb-armament.
Another air force may well have specified a constant speed prop to begin with and been happy with a 75mph stalling speed and used a smaller wing to begin with.
The Czechs were building a 1934 version of the Hispano engine. The big question is how many engines per month were they producing. If you average the 568 Avia 534 fighters over 3 1/2 years and add 25% spares you get about 17 engines a month. Plus whatever else they stuck them in.
Next question is what the engine factory doing after they stopped making H-S engines? sitting vacant or building something else.
Look at these HS engines from the German point of view - hundreds of them are free, and can still be good in a streamlined fighter. Ironically enough, Czechoslovakians were installing better HS engines on their biplanes than what the French were installing o their MS 406s.
Avia factory can be re-tooled for production of DB engines for example, without waiting for a few years like it was the case.
It is not such an anthill. The Soviets planned to build all those landing gears, perhaps they should have designed a new aircraft instead of build late model I-16s.
The Problem is adding hundreds or thousands of landing gear sets to the ones they were already producing for the existing Soviet aircraft.
I was trying to point out that, if Soviets churned out the sets for 10000+ worth of fighters in the 1930s (plus thousands for other A/C), other aircraft-producing countries should be able to do it in hundreds/low thousands in the same time, obviously depending on the size and capability of industry of a particular conutry.