Naval History Forums

ADM 281/31 What is the distance between plates, Maciej ? And why does it matter, if at all ? Class C armorur. Class C in British therms mean face hardened. For obvious reasons it was British produced plates. I have seen some time ago exact parameters of those plates, but what difference makes it an...

What is the distance between plates, Maciej ? In test of Littorio structure? The same as in Littorio structure. Simple. Later teste were in different parameters of that distance, but are irrevelant to test of reconstructed Littorio's structure. Again simple. 1. very different armour plates with ver...

The RN test did use RM distances, Source. ADM 281/31 construction techniques cemented armour on both plates What materials did they use for the armor plates ? Class C armorur. Class C in British therms mean face hardened. For obvious reasons it was British produced plates. I have seen some time ago...

I think, there is some misunderstanding here. I’m not trying to say that Littorio had weak armour. I’m trying to say that overall performance of that spaced array was not as great as 460 or 500 mm of Krupp Cemented single plate ( or what ever value ) Against British shells it was “slight better” tha...

I do agree, but I haven't yet seen a final comparison table that can be universally accepted...... Me too. And I think it will never be done. To make thing the same, there is need to use various corrections, and recalculate tables. Sooner or later ( I think very soon ;) ) someone will state, that w...

And I forget. In 1948 tests when attacked by 14" shell angle of impact 45 degree was used. So don't say that "on hull inclination" was ignored. It was 30 degree descend of shell +15 degree of inclination (or other combination). Structure gives no better protection than solid plate. Ag...

Once again about British tests Those tests in 1948 was later, than test of reconstructed Littorio’s plate. As it was discovered “slight advantage” of that protection, next series of trials were done to determine optimal configuration ( except distance between plates – that was constant ). Yes in tho...

The British tests that you quote are flawed, as they did not use the materials used by the Italian or German navies, did not properly space the plate, and did not decline the plates at the historical angles used in foreign battleships. What exactly was flawed? External plate was 2.75” face hardened...

Be very careful with data of performance of guns on navweaps.com It is various mix of data collected from various sources, but problem is that not always is stated what is source of penetration data! More – data for different guns are for different situations. In this particular example of British 1...

there was no concrete in between, just air, to facilitate the "precession" motion. It is some time, since I have read Bergano’s “The Littorio Class”, so my memory could be flawed, but I remember, that “air” was between plates over machinery spaces. Over magazines that space was full with ...

the belt of Littorio's was inclined 15°. Sorry, by bad. I based on memory. But 12 or 15 makes small difference in reality, I think. More difference will be due to hull shape, or how many shells gun fired before action, so if will have more flat or more stepped trajectory. I know principle of decapp...

Many depends of kind of shell striking plate. Post war, British tested decapping array. Short conclusion was, that if oweral thickness of that array ( main plate + decapping plate ) is more or less the same as caliber of incoming shell, than there is no difference between protection of such a array ...

You welcome. As I see some interest, I put part two. Before I put any new drawing, some long, boring text is needed, to fully understand logic behind those drawings. As soon as was decided that new battleships were needed, there were need to decide how they should look like. Design was to be started...

To understand logic behind those designs, You have to come back to the end of Great War. In 1919 started committee to investigate if battleship, as a kind of ship, is something that Royal Navy needed. There were some sounds, that battleship is dead. Future weapons will be light forces, submarines, p...

alecsandros wrote:How did the generator room crew survive the splinters ?

Depends how many splinters penetrated bulkhead.
One splinter is enough to make some flooding, and there is no need to kill anybody.