Because your claim was they were going to be able to go from 1902 tractors to something with the specs of a Pz1 in a few years.
I was more talking that they get the idea of making a tracked armored car after seeing the widespread of tractors.
To do that you have to address all the things that where developed over time and in place and that gave a Pz1 it's specs. Hence me comparing a FT17 to a Pz1, since the FT17 was at last a fast 6ish ton tank that came out of a perceived need for one and from a wider tank development that was happening during a period when tanks development was accelerated due to wartime and designs and concepts were tested in real life, kept and iterated upon or dropped.
teh development of the OTL Pz1 is of course not the only way you could create such a thing in theory, but comparing OTL vehicles and OTL development of such vehicles does illustrate the complexities and realities of how this all came about. You will have to show us your ATL path and it going to have be at least somewhat believable one, especially as you are talking about doing so at far faster rate and starting earlier.
A fair point, however, I chose the Pz1 as an example, TTL tank could very well be just a Leichttraktor or Motorgeschütz or something different. And, another reason, because its reliability, its performance and troop dislike of it were just as bad as a FT17, at least the first hundred produced, so I don't expect a TTL Pz1 to perform as the one with all problems solved after 1936 in the form of the Ausf B variant.
Ok do you have an actual link for the thing, either way it looks a fair few steps away from a tank, let alone a Pz1, which is why you can't just say this thing goes at 20-40kmh off road in 1902 so therefore you can have within a few years something analogous to the Pz1 based on it.
No, there's not a lot of information about it except that it was a 75 hp car converted to use tracks and did 40 km/h, (though it isn't mentioned if it was off road or not so there's that) which, I believe I already mentioned that it was a conversion and not a military vehicle? The point being that depending on the suspension and track system you could get a Pz1 specs, speed wise with WW1 technology.
Which was the point I was trying to make when I compared FT17 to Pz1, as you (and I said) in terms of power to weight the FT17 was roughly half teh Pz1, but the key point I made was that 2:1 ratio was not reflected in the Pz1's capabilities i.e. other factors are relevant. Similarly the Pz1 fuel tank capacity is roughly half as much again as the FT17 (146 litres vs. 98 litres) but it has roughly 3x the off road operational range. (And while yes the FT17 and Pz1 were designed with slightly different roles in mind and different tools for those roles both ere basically designed to be fast small tanks and were roughly 6 tons)
While the range might be attributed to the better, more modern engine, it could just as well be because of higher cruising/traveling speed for the same consumption of fuel as with the FT 17. Also, not sure how much it influenced the design but the FT 17 was designed with a maximum speed of 12 km/h in mind during 1916, while the Pz1 with more than 30 km/h, and it also shows in the transmission, 3 forward gears in the 17 and 5 in the Pz1, which is probably a reason why it had better overall speed on 60 HP ~ 37 km/h. A better example of a more powerful FT 17 would be the post war (1921) Fiat 3000 that with a 50-63 HP getting to 21-22 km/h on road and 8-12 km/h off road, reaching the limit of the 17's gearbox.
That is not what cost effective means,
ok so I'm trying phrase in a reasonable way as I can, what is your understanding of the term cost effective in this context?
That the tank in this case fulfills army requirements that cannot be fulfilled by other means, or doing it so at a very clear advantage that its cost - production manhours, resources and other various consumables - is not absurdly high that the production cannot keep up with the demand (for replacements, though this could be ameliorated by expanding the production or subcontracting it) without impairing other vital sectors like rifle production, truck production, ship production etc. The tank they get being worth the money spent without eating into other vital equipment, and honestly, I would say a Pz1 equivalent is 10 times more cost effective than the Mark landships so I honestly don't see why it wouldn't be cost effective.
What i was trying to point out (badly) was that tanks in WW1 sucked because it was very easy yo build an anti tank weapon that could be easily built in mass numbers and supplied to troops and be moved around with relative ease and often have another use,
In WW2 it took a serious weapon and or a dedicated anti tank weapon to take out a tank. In WW1 a heavy 50 cal mechine gun could have done the job. And in fact early on a few tanks were taken out by massed gunfire. And this was before thinhpgs like 50 cal heavy machine guns were being produced in mass.
And yes heavier armor was not really possible as the engines suspension amd everything was hard pressed (barely work most the time) with the light armor WW1 tanks had.
The big reason being all wasted space and sheer size of the WW1 tanks. WW2 tanks utilized space more efficiently keeping length, height and width half of those WW1 tanks, weighting less or as much but being 5 times more armored.