early 1940s

Howdy everybody, got a mystery for someone to solve. I found the following images on the history.navy.mil site by chance when doing research for my earlier Shinyo post, made elsewhere. I ended up with a bunch of photos of a mystery US naval craft, that according to the website, is only called...

This "design" apparently did exist as a specification for the Maru 6 program -- but since the plan was pretty much shelved with the defeat at Midway, nothing came of it. Assumedly, most (if not all) records of its existence were destroyed. Certainly, no official drawings survived (if they ever...

Hello, i'm looking to experimental projects for supplying isolated japanese garrisons in ww2. For example: Special containers used with submarines. Unkato, Tokugata Unkato, Unpoto. Special waterproof landing craft on after deck of submarines. How the supply were stoked on the deck ? With a net...

Hi everyone, As previous threads on French interwar-1940 vehicles, I am creating a new one centered on unbuilt Char B projects. This will deal with pretty obscure vehicles, which we presently have few or no illustrations of. B2, B3 and BB: It is possible to go all the way back to October 28...

Hi everyone, This thread will be dedicated to the discussion of French cavalry vehicles in the intended 1940-1942 period, namely: - AM 39 Gendron-Somua - Laffly heavy/powerful armored car - Bucciali heavy/powerful armored car - AMX-40 heavy/powerful armored car - late Panhard AMD 178...

By mid-1942 the shortage of tungsten needed for production of anti-tank artillery shells was so critical that the Heereswaffenamt issued a specification calling for a Panzerabwehrrakete (anti-tank missile) fitted with hollow charge warhead. Early in 1943, Dr. Otto Kramer began the development...

Hi everyone, I tend to be quite interested in discussing the details of a scenario where the Entente holds the front near the Franco-Belgian border in 1940 (mostly in other forums). I was now wondering what the impacts would be for the RAF. Obviously we may see fewer American aircrafts in...

The GB 3/L was a glide bomb project based on the aerodynamic solutions developed for the Lippisch P.12 by the Deutsche Forschungsanstalt für Segelflug. Designed in July 1944 to compete against the antiship missile Henschel Hs 293D, it could transport a warhead of 250 kg at 800 km/h and reach...

This, the last Flakpanzer designed by Rheinmetall-Borsig from late 1944, was incited by the SS-Führungshauptamt and fathered by SS-Hauptsturmführer Wabnitz. It proceeded to the last days of WW2, and not just a wooden mockup was made since metal was cut. All the plans were destroyed in a air...

Hi everyone, Just like my previous threads in the same section, talking about French antitank weapon projects in development in the interwar period or up to 1940 that didn't get to enter service, based on my archive findings. I'm gonna start with the ones that caught me completetely off-guard...

Hi all, The purpose of this thread is to compile and present sources regarding Italian bomb types, fuzes and tactics used in the Central Mediterranean from their entry into the War in 1940 to the Armistice of Cassibile in 1943. This is meant to complement my other thread about German equipment...

Hi everyone, This thread is about the French tanks designed or contemplated for the new tank program drawn up by the French Inspector of Tanks in December 1939-February 1940, Général Keller. This wartime program was intended to organize development of tanks in control of the infantry branch...

The Iwo Jima (CV-46) of the Essex class was cancelled incomplete after the war. But according to Friedman, there were plans to redesign the ship to alleviate the deficiencies of the Essex class (the plans died with the cancellation of the carrier): Does anyone have information on this redesign?

Is the water-alcohol injection R-2800 on the P-47s, so they can make 2300-2600-2800 HP instead of 2000-2100 HP, also cheating? Engineer in ww2: we've managed to make our engines do extra 15-20-30% HP more, with reasonable reliability. 21st century enthusiast: cheater! Three things: - there...

The Navweps site on these two guns has some passing mentions that lead me to other questions: -135 mm/45 (5.3") Models 1937 and 1938: There is this statement: "A twin AA version for the Etna class cruisers and for the rebuild of the damaged battleship Conte Di Cavour were only in the...

Hello all, While browsing some old WoWS Reddit threads I found mention of a CRDA (assumedly Cantieri Riuniti dell'Adriatico, active 1930 to 1984) battleship design that was posted on the (now-defunct) WoWS forums. Apparently the known specifics are "61200 tons standard, 29 knots, 406mm belt...

i did a quick search of this site for the above mentioned vehicle and found nothing so if there is a preexisting topic i am sorry for failing to discover its thread i was looking for any info and/ or pics about this vehicle or these vehicles ( i know of the DP-2 ( the one which almost...

Hello, I've been looking for information on the Kleber class destroyers and their follow-ons online for a while. Today I got French Destroyers 1922-56, and while it didn't tell me much more about the Klebers, it did mention names for the "Type 1940" destroyers (Bayard and 5 others), and that...

While looking through a seemingly random search result, I found a particular drawing that stood out to me as it does not seem to be discussed much outside of this VK thread where I found it... Here are the details found in said article: There is also a blueprint and a recreation of said...

Something about Super-A Cruisers before Maru-5 Project. Source: 早川幸夫，スーパー・クルーザー「超甲巡」覇王伝説，月刊《丸》，2013年5月号 (Monthly "Maru", May 2013). The author stated that in a 1934 document named "Required National Defense Force from Treaty-Break to 1940" (条約決裂後ノ昭和十五年度ニオケル国防所要兵力表), that IJN's original plan...