Ad: This forum contains affiliate links to products on Amazon and eBay. More information in Terms and rules
Part of the bargain was the lower combat value.Valentine is a bargain. When 1st available, it was half a price of the Matilda II with the same gun, and just a slightly less armor thickness.
This looks like the 7.92" mortar carrier. Designed to project chemical munitions or a 25lb incendiary bomb. Trialled at the Petroleum Warfare Establishment 1943-45 but not developed further.Just for fun
View attachment 808543
yes, it just looks cool with the semi mushroom cloud in the background.This looks like the 7.92" mortar carrier. Designed to project chemical munitions or a 25lb incendiary bomb. Trialled at the Petroleum Warfare Establishment 1943-45 but not developed further.
Part of the bargain was the lower combat value.
The Matilda had a 4th crewman from the start, not until the Valentine MK III did they get 3 man turret, which was after 1800 of the 2 man turret tanks were built.
The Matilda carried more main gun ammo, about 17% more.
It had better vision for commander, not much, but anything was an improvement.
The Matilda had more range.
The Valentine was a better value, you did not the same combat capability for 1/2 the price.
And two tanks to carry almost the same amount of ammo into battle as a single larger tank is seldom the bargain it appears. A tank is a tank may appeal to the accountants but trying to deal with lots of tanks that carry a small war load and need either replenishment on site or need to withdraw from the battle for replenishment complicates logistics/battle planning. Lots of small cheap tanks shuttling in and out of the battle to replenish means how many actually fighting the battle at any one time? Granted there were times when Shermans had to leave a fight in order to replenish.
Not making the retrograde step with the adoption of the 3pdr would've been a good idea.In the 1930s you have to deal with doctrine/requirements and little or no combat experience. Or little post WW I experience.
British MK IV male tanks carried up to 332 rounds for their two 6pdr guns. Really makes one wonder about the lack of HE support from the 2pdr armed tanks. German MK IIIE with 37mm carried up to 131 rounds of 37mm (granted a mix of AP and HE) and 4500 rounds of machine gun ammo.
No. Too expensive. Not in enveloppe of need by eu airforces then. They should have, but politics said no.Same as with every Western airforce would've just loved the F-15 between 1975 and 2000
True but the light tanks were not a great bargain. Trade offs are made and having fewer tanks for the same money does not look good to the accountants. Having poor tanks is often (but not always) better than no tanks in certain areas while the better ones were somewhere else. The whole idea of infantry support tanks with every infantry division getting a company or battalion of tanks but having no actual tank divisions. Not a wise choice for how to spend money.Similar math was in effect when we compare KV-1 and T-34. It was far worse when the M3 Medium or M4 were compared with M3 light and M5. Same when Pz-III was compared with Pz-II.
Every army in the day would've loved the multi-purpose tanks with heavy armor, great firepower and great mobility. Same as with every Western airforce would've just loved the F-15 between 1975 and 2000. Reality was different, everyone was making simpler, cheaper and less capable jets in that time, and the people were buying the less capable tanks even when the better/best (at least on paper) were in the pipeline.
French had over 1000 left over WW I tanks, they built how many hundreds of those little two man FT-17 replacements instead instead 3-4 man medium tanks to equip several armored divisions. A number of smaller countries spent way too much money on light armored vehicles (not tanks) for propaganda purposes. Italy, I am looking at you.Look at this from the high command PoV in the 1930s. Unless they are the French or Soviets, they need to create the armored divisions often from nothing. Opting for the bestest tank will mean that better half of the armored divisions required is outfitted with armored cars instead of the tanks.
While the 1920s 3pdr may not have been the best idea it beat the heck out keeping the old 6pdrs.Not making the retrograde step with the adoption of the 3pdr would've been a good idea.
Send to the Falklands anyone who suggests the not issuing HE shells to the tanks, and to the South Georgia the one that suggests that 2pdr is a good tank gun.
Not "slightly" - 75 mm vs 60 mm is a significant difference. The Soviets considered the Matilda II as almost equal to the KV by armoring (and highly respected for this) - even with less thickness, British armor provided similar protection due to a higher quality. In 1940, the Valentine was approx. 20% cheaper to build than the Matilda.Valentine is a bargain. When 1st available, it was half a price of the Matilda II with the same gun, and just a slightly less armor thickness.
It was trialled and used and found effective. It was, however, an answer for a brief window but eventually abandoned as weights rose and it became impractical. I was not arguing for it but noting how to came about and why it was a practical option at the time. The doctrine was founded upon naval practice and applied to the 2 Pounder and preceding 3 Pounder and was an option with the 6 Pounder. The Crusader 6 Pounder having free elevation and the Churchill geared. I recognised the negative impact upon the gun/turret interface with the internal mantlet (mounted upon the gun mount) with it's large hole on the turret face armour and space to work, recoil and elevate the breech.And what happens when you have average gunners?
Not poor, just rushed in building up desired forces.
And what happens at longer ranges?
Like much over Point Blank when putting the cross hairs just over the enemy target is no longer enough.
What happens at the longer ranges when the average gunner needs repeat shots and can't just dial the elevation up or down, even with the tank sitting still?
British used a lower magnification sight, perhaps to allow for a wider field of view for shooting on the move.
But this meant more difficulties shooting at long range.
By the way, in desert long range for 2pdr armed tanks was anything much over 800 yds. Maybe the expected ranges in France were less but they shot themselves in both feet with this one and kept throwing the crutches away for several years. Apparently I was in error earlier about shoulder control being used with close support howitzers. The Chieftain's video of the A10 CS tank shows hand wheel elevation for the 3.7in Mortar. Never let actual experience get in the way of good doctrine, or even mediocre doctrine........................heck, even down right crappy doctrine.
True but the light tanks were not a great bargain. Trade offs are made and having fewer tanks for the same money does not look good to the accountants. Having poor tanks is often (but not always) better than no tanks in certain areas while the better ones were somewhere else. The whole idea of infantry support tanks with every infantry division getting a company or battalion of tanks but having no actual tank divisions. Not a wise choice for how to spend money.
While the 1920s 3pdr may not have been the best idea it beat the heck out keeping the old 6pdrs.
1,350 ft/s (411 m/s) MV. These things were pretty much ex black powder guns (or close to it) using HE shells filled with black powder.
The 1920s 3pdr guns would actually go through more armor. Not much but they would. They were also easier to hit with their higher velocity, higher being relative but they at least had a point blank range about that of the 75mm field guns. Requirement was to penetrate the armor of the expected enemy tanks at 1000yds. Now this was in 1928 so nobody had thick armor. Getting a hit at 1000yds was a lot easier than using the old sawed off guns.
Using the old guns with the original length barrels even in the 1930s was going to get you much.
2pdr AT gun= 337,782 joules (original load)
3pdr tank gun = 231,000 joules
6pdr short gun = 230,000 joules (WW I late)
6pdr long gun = 397,000 joules (WW I early)
The old guns are going to weigh a lot more and the ammo will take up more room (less of it in a given size tank)
We do not.Now to criticize the 2pdr as a tank gun we also have to criticize everybody who who used/adopted 37-47mm guns in their tanks.
You are correct but the choice was there and the choice was between short range fire and long range fire. Each path had limits and each had terrain areas it could shine in.A brief moment in time when it had some merit and gave gunners the chance to fire as a moving platform whilst the enemy were constrained to stop to fire making them an easier target. So it was not a daft idea but a limited one.
Well, the Valentine is late and it won't really do the cruiser tank job but that is a story for another thread.This is where the Valentine shines, and even more a 'proper' 18-20 ton tank. Making more of them instead of the light tanks is/was a way to go. Unfortunately for the historical British tanks arm, Valentine was too late for the pre-1940 build-up.
More on this later but the 6pdr was over 3 times as heavy as the 2pdr.Use the 6pdrs with normal barrel lengths in the 1920s - these were good for 538 m/s as-is, ie. no worse than the field guns of the day - and see that can be done to improve the AP performance.
Move to the higher-power 6pdrs or/and 12-13 prd guns by the mid-1930s.
Actually it was a rather poor hole puncher.I want quality, so the original length 6pdr is simply great.
Sorry, any tank with decent armor (30mm) is not going to be taken out with 57mm/6pdr HE ammo. disabled maybe. 30mm armor at the time was considered "shell proof" that is 75mm field gun HE ammo could not hurt (nothing is said about hearing loss) what was inside the tank.BTW - the 2 pdr scores zero points for the HE ability, same for the 3pdr. Even if we stick the HE shells on these guns, one 6 pdr shell is worth perhaps as much as three 2 pdr shells, or as much as two 3 pdr shells; I'm being conservative on purpose here. A tank that the 6pdr hits will be most likely destroyed, together with it's crew (sorry, folks), while the 2 pdr will require a few additional hits to do the same.
We also have a thing that British have all of the 1930s to start designing and debugging the tanks with the better abilities if they start with the 6 pdr, that also makes the path to the further upgrades of firepower easy job.
A really big problem is that most people were were not designing 20-30 ton tanks.We do not.
French were moving from 37mm to 47mm (so it is a step up), and their 47mm guns were issued with HE shells. French were also installing the most powerful 75mm guns on the tanks of 1930s, whose purpose was both for AP and HE. It will take until 1941 for someone to beat them in that game; it will take the British until 1943 to beat the French in the installation of a 75mm gun on a tank.
Both Soviets and Germans were issuing the 75-76mm guns on the tanks in the late 1930s (Soviets even earlier), and their small guns on the tanks were still with the HE shells. Germans were making the StuG-IIIs with the 75mm gun; yes, it was not a tank.
Nobody else was saying: okay, now that we have a 20-30 ton tank, putting the very small gun on it is the greatest idea.
As one can expect, since it was a decades older design.More on this later but the 6pdr was over 3 times as heavy as the 2pdr.
Actually it was a rather poor hole puncher.
gun.......................size hole.................Joules......................joules per sq cm
2pdr.....................40=12.566............337,782.....................26,880
3pdr.....................47=17.35..............231,000......................13,314
6pdr (S)..............57=25.52...............230,000........................9,020
6pdr (L)..............57=25.52...............397,000......................15,556
German 37.......37=10.752.............200,000......................18,000
A really big problem is that most people were were not designing 20-30 ton tanks.
Hopefully, British tankers will recall that the enemy tank should be fired at with the AP shot, not the HE shell.Sorry, any tank with decent armor (30mm) is not going to be taken out with 57mm/6pdr HE ammo. disabled maybe. 30mm armor at the time was considered "shell proof" that is 75mm field gun HE ammo could not hurt (nothing is said about hearing loss) what was inside the tank.
Options for the Soviets:
- keep making and installing the 57mm gun on the T-34 in some decent quantities
- adopt the best part of the F22 gun for the T-34 and KV-1, as well as the hot loaded ammo (1400g of propellant vs. 1080g in the 'normal' AP & APHE ammo); should be getting to perhaps 730+ m/s with the 6.3-6.5 kg AP ammo (French were getting max 715 m/s with the 1250g propellant load and the ~6.2 kg shell on their AA pieces, and less with 6.4 kg shell), and probably over 1050 m/s with the APCR
View attachment 808667
- install the 85mm gun on the SU-122 chassis by winter of 1942/43, the SU-122 remaining a prototype only
- 100 mm gun on the KV and IS tanks
- make a not-SU-122 (cannon-armed) instead of the SU-152 on the KV chassis
- have the T-43 to be designed with an 85mm gun from the get go
Soviets have had perhaps the best choice of guns, but the installation of these on the tanks and AFVs was many times lagging behind the needs. Granted, being trashed by the Germans in the 1st 18 months of the war meant that good tanks were preferred, not the best possible stuff
If they go with the more powerful 76mm gun, that removes the (presumed?) need to install the 57mm on the T-34s.Was there something majorly wrong with the L-11 and F-34 76mm guns in the early-mid war? Seems to me the guns themselves were ok, what would have been needed was a 3-man turret for the T-34 from the outset, a radio in every tank, and much better training and tactics.
Sure, at some point the Germans start showing up with heavier tanks, and these guns are no longer adequate. So, as historical, switch to the 85mm? And then the 100mm; the 122mm was arguably unnecessary at that point.
Based on the results of the Battle of Moscow, the use of the T-34 with 57 mm ZIS-4 gun was considered unsatisfactory - the task range became narrower, the effectiveness of fire on infantry and fortifications became much worse, so further use of this gun on the T-34 was abandoned. In 1943, under desperate circumstances it was decided to install it again, but it quickly came to the same conclusions. Anti-tank functions were transferred to the self-propelled artillery (which Soviet commanders, due to insufficient understanding of tactics, persistently used as tanks). Soviet ZIS-5 and F-34 guns were fully adequate until late 1942. And even later - under condition of the availability of high quality AT shells.- keep making and installing the 57mm gun on the T-34 in some decent quantities
What does that mean? What makes you sure that the result could be fit in the turret of a T-34? How does this differ from increasing the length of the F-34 barrel to 60 caliber when using a shell from a 3K anti-aircraft gun with an enhanced charge, i.e. the C-54? The Soviets equipped about 100 T-34s with these guns, and armor penetration was greatly increased, but as it turned out, there were too few Tigers to justify the double cost of the round. In addition, experts at the Aberdeen Proving Ground believed that the F-34 could have a muzzle velocity of about 850 m/s already only if better powder was used.- adopt the best part of the F22 gun for the T-34 and KV-1...
And why would it be necessary, if the cartridge case of 76-mm and 85-mm is the same? Given this fact, the 85mm gun was a better solution for the T-34., as well as the hot loaded ammo (1400g of propellant vs. 1080g in the 'normal' AP & APHE ammo); should be getting to perhaps 730+ m/s with the 6.3-6.5 kg AP ammo (French were getting max 715 m/s with the 1250g propellant load and the ~6.2 kg shell on their AA pieces, and less with 6.4 kg shell), and probably over 1050 m/s with the APCR
Actually, the chassis of the SU-122 was completely taken from the T-34. And the most important thing, it is not clear why SU-122 and SU-85 are opposed at all, if they had different targets and objectives on the battlefield. The main task of SU-122 was suppression of enemy artillery (first of all - anti-tank), for this purpose a powerful HE shell was required. SU-85 is primarily an anti-tank weapon. Both of these self-propelled guns were required by tank units.- install the 85mm gun on the SU-122 chassis by winter of 1942/43, the SU-122 remaining a prototype only
And why not 107mm? And why a 100mm gun was better than the 122mm D-25, which the IS received in reality? In 1941 an 85-mm gun (U-12) was tested on the KV, and even its installation was considered unjustified at that time - it was too expensive. KV-2 with 107-mm was also tested with the same result. There was no need for a tank with such a gun in 1941. And even in 1942 it was not needed yet. And in the fall of 1942, when the factories were able to start production of a new tank, and the need for it became more obvious, the Stalingrad crisis occurred, which crossed out most of the alternatives - quantity was required.- 100 mm gun on the KV and IS tanks
Why? What exactly was wrong with the ML-20? Why to make a self-propelled gun when there was a tank with 122-mm gun? The IS with 122-mm gun was mass-produced from December 1943.- make a not-SU-122 (cannon-armed) instead of the SU-152 on the KV chassis
The Battle of Kursk was necessary to realize the necessity to equip the tank with an 85 mm gun. The D-5T (modified U-12) appeared only in May 1943, and it was not optimal for the tank. ZIS-S-53 was created by order from the end of October 1943, it was produced since February 1944, it is difficult for me to conclude whether it could have been developed and put into production earlier. The T-43 did not require any serious modifications of the hull (and perhaps the turret as well) to mount the 85 mm gun - the tank had already an increased turret ring with a diameter of 1600 mm.- have the T-43 to be designed with an 85mm gun from the get go
The Soviets tried not to use tanks as anti-tank weapons - heavy tanks were to break through defense lines, medium tanks (including the Valentine, which was widely used in cavalry corps) were to be brought into a breakthrough and used as cruiser tanks, and light tanks were to support infantry directly. The Soviets had an almost ideal light tank for infantry support - the T-50 with the 45-mm 20K (a 57-mm gun should be install later), but at the beginning of the war its serial production had not been started, and in the conditions of the war and evacuation of factories it was unrealistic to deploy production of a new engine (V-4), so only about 70 T-50s were produced. For a number of reasons, it was not possible to produce an alternative GMC engine, moreover, the Valentines received under Lend-Lease were considered to be comparable to the T-50. Perhaps this was the only alternative that could be realized.Soviets have had perhaps the best choice of guns, but the installation of these on the tanks and AFVs was many times lagging behind the needs. Granted, being trashed by the Germans in the 1st 18 months of the war meant that good tanks were preferred, not the best possible stuff
The L-11 was unreliable and more complicated in use. The major problem of Soviet guns was the lack of an adequate armor-piercing shell or its poor quality.Was there something majorly wrong with the L-11 and F-34 76mm guns in the early-mid war?
I've already pointed this out above.Seems to me the guns themselves were ok, what would have been needed was a 3-man turret for the T-34 from the outset, a radio in every tank, and much better training and tactics.
I have to repeat once again: fighting enemy tanks was not the main task of Soviet tanks. And the caliber of the guns was not chosen only taking into account armor penetration.Sure, at some point the Germans start showing up with heavier tanks, and these guns are no longer adequate. So, as historical, switch to the 85mm? And then the 100mm; the 122mm was arguably unnecessary at that point.
The Soviets did not need more powerful 76mm gun as they used the same cartridge case for both 76mm and 85mm rounds.If they go with the more powerful 76mm gun, that removes the (presumed?) need to install the 57mm on the T-34s.
It wasn't crucial. The difference was small; until the Tigers appeared, the Soviets did not see a big problem. And once again: using tanks as anti-tank weapons was considered a serious mistake according to Soviet tactics.Already by Spring of 1942, the T-34s were being out-gunned by the Pz-IVF2/G and Stug-IIIF, and probably by the Pz-IIIJ. The different SP tank busters were also started to be deployed in that time. All of them, bar the IIIJ, will be able to destroy a T-34 at 1500m, and the IIIJ might do it at 1000m.
That can be said about any tank.Granted, the T-34 will need a lot more to improve on in order became the tank it was supposed to be.
In the fall of 1942, the Soviet tank industry was in crisis due to the loss of the Stalingrad plants. The transition to 85mm guns (which did not appear until May 1943) was impossible.The move towards the 85mm needs to start by the late 1942, perhaps spurred by the encounter with the Tiger tanks in that time? So the 1st tanks/AFVs can be in the units by Spring of 1943, hopefully.
There are 3 ways to make 'better' AP ammo.There are years available to make better ammo, as well as a new gun with even better ammo.
As I'v suggested a few times in the other thread.
Some of the ones designing 30 ton tanks had the best lobbyistsNo, the most capable people in the most capable companies were the ones were tasked for designing 20-30 ton tanks.