Naval History Forums

The report mentions that typical sound detection range was only 10% of that reported by PE during the Bismarck episode. The mentioned 10% do not characterize the typical range, it was a exceptional bad range area near the Azores, as even the usually difficult Baltic Sea accoustic conditions allow f...

Have a copy of the original K-Amt drawing -Panzerdicken - available.

But not from here (Im in hospital for 3 weeks).

Sidearmor 320 mm KC

Armour deck over machinery all 80 mm
Armour deck slopes 105 mm

it was a motor torpedo boat not a submarine

secret subject: Immediate use of "Dete" (Radar)devices process: BN VIII 5825/39 geheim from October 10th 1939 process writing was accompanied by a report of the Panzerschiff Admral Graf Spee on a combat-practice at night. Report Shows, that Graf Spee achieved 100 per Cent hit rate during two attack ...

First documented use of Funkmess for firecontrol purposes
Admiral Graf Spee Summer 1939

https://lh3.googleusercontent.com/TO0LkiZCxk99ZjpCXug5d5Wwp5Cmq1PfYBqb8iZpf3RXZuZryTgxPf_7rqgvveikqDJnxuh3pwbD5YzvmU19NwJUml4LYS7gimcniPkPKkQoCZFQqR_sf8cpPl0N2zny254wic_oZCs8hR9xb5N94mJI3PCRRdbOn9_T6XDmOMoMQTMp2eeJ3rPU44uGV96iF2MYsE9oFI3mplJz3bnqoSdDD0RZXf_To9QSKipegFKSrTKmQrmjqjkJjmJt3GhDlioSj5LzY...

The PBS hull was rated for 30 knots but could only reach 29.4 knots in ultra light trails. It seems adding bulges cost them a knot off the top speed. The rest was increased displacement from enlarging the superstructure/armaments, to meet the numerous roles demanded. Reportedly mid life plans inclu...

Paul L wrote:...I have read they DID damage the steam system for galley services and shrapnel damage the oil purification system .

Shrapnell damage was done to the exhaust system. All systems wich uses this exhaust has to be tempoarily shut off, because of danger of explosion by fumes.

As I understand the main reason allies went to single deck armor plate was to defeat bombs, not shells. https://lh3.googleusercontent.com/6fF6skXBfWXlupw2FzqVIcgSbwqucePzGOiKui5HVEqJEJZV95TqgzH-9L3qMQkCr65sl1l9vYDXojHTZ2ssN2qOdRpWxu1ho2xVFDTP39S9hANKoMgVq6e7YICSQ0HtMksZc3VX-KYZZ-_-viwV6LexscQy1RzqI7...

... face hardened armour... In that area British armour proved to be better

as far as I remember it was one plate produced in 1947 ;)that proved better then the flamecutted tiny sized armor pieces of Tirpitz made in 1940.

I have problems in understanding british armour efficiency diagrams especially the vertical protection. obviously they greatly understate the armour penetration performance of all guns versus vertical armour. line in red minimum performance(Perforation, projectile whole and fit to burst) of the 38 c...

Lee comment: ...our battleships are neither designed nor armed for close range night actions with enemy light forces. A few minutes intense fire, at short range, from secondary battery guns, can and did, render one of our battleships deaf, dumb, blind, and impotent, through destruction of radar, ra...

there wer quite definitive findings of german engineers regarding french projectile and armor qualities beeing inferior when compared to usual german ones, these findings werent substantiated to what degree French armour showed a increased tendency to crack(see also hit on turret roof of Dunkerque) ...

( Luetjen's thought he was engaging the main Home Fleet battle squadron, and that Renown was Nelson. He did not know it was only Renown and nine destroyers at that time). comment the german ships made contact with radar at about 25 km; visibility was considerable lesser. At a certain time ther were...