Search found 134 matches

by Maciej
Sat Jun 04, 2016 4:23 pm
Forum: Hypothetical Naval Scenarios
Topic: Hood v Vittorio Veneto
Replies: 560
Views: 43630

Re: Hood v Vittorio Veneto

once we are all in agreement that the actual Littorio class array has never been tested by other navies than RM, therefore Pugliese theory has been contradicted neither by tests nor by a theoretical work, let's move to shell design. You have one veto. See those pictures in scale. Test done in Italy...
by Maciej
Fri Jun 03, 2016 12:43 pm
Forum: Hypothetical Naval Scenarios
Topic: Hood v Vittorio Veneto
Replies: 560
Views: 43630

Re: Hood v Vittorio Veneto

The most critical parameter are IMHO outer plate thickness (influencing the quantity of the "precession motion") and mostly the distance between plates that is neither enough to allow full de-capping nor the good one to ensure that the shell is hitting the inner plate with an unfavorable inclinatio...
by Maciej
Fri Jun 03, 2016 6:52 am
Forum: Hypothetical Naval Scenarios
Topic: Hood v Vittorio Veneto
Replies: 560
Views: 43630

Re: Hood v Vittorio Veneto

Sorry, but I think I mixed some data, so I made some confusion. I don’t have exact data of tests older than 1945. Some data – yes, but not as precise as I asked for Italy and German tests. More or less on the same level of accuracy as I have about Italy tests – so with doubtful value. With certainty...
by Maciej
Thu Jun 02, 2016 6:31 pm
Forum: Hypothetical Naval Scenarios
Topic: Hood v Vittorio Veneto
Replies: 560
Views: 43630

Decapping

Only now I had opportunity to check Bagnasco and de Toro book about Littorio class battleships. In my English edition on page 35 it is stated, that it was full scale test. 280 mm KC plate + 70 mm non cemented homogeous plate, and distance 25 cm between them. It was fired by 320 mm shell ( nothing ab...
by Maciej
Sun May 29, 2016 7:31 pm
Forum: Hypothetical Naval Scenarios
Topic: Hood v Vittorio Veneto
Replies: 560
Views: 43630

Re: Hood v Vittorio Veneto

VV hull was quite fine forward and aft. Very precise ;) on eye measure suggest considerably finer lines than KGV. Pure dimensions could be misleading. See G3 and N3 with more or less the same displacement, or Lexington and South Dakota (WWI era). And one tking more. In standard displacement ammo is ...
by Maciej
Sun May 29, 2016 5:52 pm
Forum: Hypothetical Naval Scenarios
Topic: Hood v Vittorio Veneto
Replies: 560
Views: 43630

Re: Hood v Vittorio Veneto

I checked Raven&Roberts and Friedman. As stated by Dunmunro, R&R gives displacement of KGV in 1940 - 36 727 tons Full load 42 076 tons Friedman: 36 730 tons, standard ( slight difference in each element, resulted in 3 tons difference in sum - personally I think, totally unimportant ) Trial displacem...
by Maciej
Sun May 29, 2016 2:54 pm
Forum: The Dreadnought Era (1906-1921)
Topic: Royal Navy Super Battleships and Battlecruisers
Replies: 74
Views: 61235

Re: Royal Navy Super Battleships and Battlecruisers

I checked Raven&Roberts.
All they stated is "air compressed system similar to that in submarine".
So who knows? Tanks? Air compressed in real time?
by Maciej
Sun May 29, 2016 11:02 am
Forum: Hypothetical Naval Scenarios
Topic: Hood v Vittorio Veneto
Replies: 560
Views: 43630

Re: Hood v Vittorio Veneto

Thank You.
BTW what was increase of light AA guns on Tirpitz?
On allied battleships considerable. On Tirpitz? I remember many 20 mm guns, others?
What was weight increase?
by Maciej
Sun May 29, 2016 7:26 am
Forum: Hypothetical Naval Scenarios
Topic: Hood v Vittorio Veneto
Replies: 560
Views: 43630

Re: Hood v Vittorio Veneto

Standard displacement was something not used by Germans in any practical sense, it has to be calculated. data 1940/41 Full load displacement of Bismarck ~53 000 ( actually a bit more ). Fuel, feed water, gas for planes and so one 9 900 tons ( say 10 000 ) So displacement 43 000. Fiquids in SPS 1800 ...
by Maciej
Sat May 28, 2016 7:16 pm
Forum: Naval History (1922-1945)
Topic: Royal Navy became oil-addicted thanks to Churchill
Replies: 7
Views: 5446

Re: Royal Navy became oil-addicted thanks to Churchill

From pure ship design point of view, after mastering procedure of firing oil ( and storing, transfering and so one ) there were little to choose. But coal was common in use. There were coal ewerywhere. Thausands of private coilers ( from smallest to really large ) were available, so if really need, ...
by Maciej
Sat May 28, 2016 7:10 pm
Forum: The Dreadnought Era (1906-1921)
Topic: Royal Navy Super Battleships and Battlecruisers
Replies: 74
Views: 61235

Re: Royal Navy Super Battleships and Battlecruisers

Unfortunately I don’t know detail. Information about blowing tanks come from one of secondary sources. Possibly Raven & Roberts or Campbell ( I can check it next week, I’m far from my printed books now, only electronic versions are with me ). There are shipyards plans in existence in one of the Brit...
by Maciej
Fri May 27, 2016 11:04 pm
Forum: The Dreadnought Era (1906-1921)
Topic: Royal Navy Super Battleships and Battlecruisers
Replies: 74
Views: 61235

G3 final, N3, O3

G3 final G3 was promising, but needed many modifications. 1. Disposition of secondary guns. Numbers of guns were OK, but disposition far from perfect. Forward 6” turrets were OK, but rest not. They were too close, and all 3 of one site could be put out of action by one (un)lucky hit. More important ...
by Maciej
Fri May 27, 2016 9:40 pm
Forum: Hypothetical Naval Scenarios
Topic: Hood v Vittorio Veneto
Replies: 560
Views: 43630

Re: Hood v Vittorio Veneto

And there were many additions during war, including so many AA guns, that they had 100+ 40 mm guns ( both pom poms + Bofors )
And in 1945 was order given to not exceed 45 000 tons full load.
by Maciej
Fri May 27, 2016 9:35 pm
Forum: The Dreadnought Era (1906-1921)
Topic: Royal Navy Super Battleships and Battlecruisers
Replies: 74
Views: 61235

M3 and M2

M3, M2 M3 was done first, more or less the same time as I3 ( longest of battlecruisers, first with new arrangement of artillery ). Ship was to be powered by only two shafts, due to weight savings. 56 000 SHP was quite possible on only two shafts. It was much less than half of power of I3. For Britis...
by Maciej
Fri May 27, 2016 8:24 pm
Forum: Hypothetical Naval Scenarios
Topic: Hood v Vittorio Veneto
Replies: 560
Views: 43630

Re: Hood v Vittorio Veneto

yes, version of 1943 with war aditions of one ship, with 1941 versions of other ship.

What was displacement of Tirpitz in 1943?