late 1930s

Everyone knows about the Dormier P.85 aircraft project, a Do17Z with, among other differences, floats and straight wings. It wasn`t included in the attached table, taken from a BA/MA file on the contest for a seaplane bomber, known as "Kampfflugzeug See" or as See-Stuka, as may see. There were...

Those who tought, like me, that all the German engineering expertise on hardware airships ended with the Hindenburg, are wrong. The BA/MA in Freiburg has a file (included in RM 7/2382), dated 12.2.1938,and stemming from the Kriegsmarine, refering to a proposal, serious enough to the point of...

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...

A one-off design by Ernst Jachtmann who had famously set endurance records in gliders including a 41 hour flight in 1937, he can be seen in the cockpit in the media below.

CONTENTS Compressibility buffeting The research sites of the Luftwaffe Messerschmitt Me 262 Interzeptor Messerschmitt Me 262 Heimatschützer BMW 109-003 R (TLR) rocket/turbojet BMW 109-718 rocket Rocket propellants composition Messerschmitt Me 262 Hochgeschwindigkeits Rennkabine...

View: https://www.youtube.com/watch?v=cQZgi1O1Vb4 Some background on decoy airfields: https://www.aviationmuseum.net/AirfieldDecoys.htm

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...

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! The book French Battleships 1922-56 mentions that for the Alsace-class battleship designs, studies for 400, 406, and 420mm guns were ordered. Additionally, a 406mm naval gun was created by the Schneider company for the Soviet Union, and a 431mm naval gun was created: the elusive Canon de...

In 1939, France's Edgar Brandt & Company offered the French Army a series of three HEAT grenades...a 50mm-diameter design to be fired from standard infantry rifles, a 60mm design to be fired from the rifle-caliber medium machine gun in single shot mode, and an 80mm design to be fired from the...

Starting point Juan de la Cierva had already decided to continue his work motorizing the gyroplane's rotor. He misses his flight at Croydon which crashes in December 1936 because his car has a flat tire. He travels on the next flight, meets with Focke, and together they design and develop two...

Just realized that i have never seen any drawings of interim projects that eventually led to the G-50/F6F. There was an G-33 based on the XF4F-2 but with R-2600 engine, and as i understand initial G-50 projects had still much in common with the F4F (mid-wing, fuselage landing gear etc.). Are...

The C-35 and the C-36 are well known, actually built, aircraft of "Eidgenössische Konstruktionswerkstätte" in Thun. The planned C-37 is rather less known. Last year I had the chance to re-work an 1978-article of "Cockpit" and I was lucky to get to see a painting of Roland Eichenberger -...

(h/t cattalonX) https://forum.worldofwarships.eu/topic/5987-spanish-heavy-cruiser-project-138/

Seen here ...

I've seen a few references to a Supermarine early World War II project called the Type 312. From what I've read, it was a derivative of the Spitfire but with standard cannon armament and a ventral radiator instead of the Spitfire's underwing radiators. Does any photos or plans or other details...

Website is here https://www.passionair1940.fr

Published in "Техника Молодёжи-Youth Technique" from 1936 the picture shows a fuel supply in flight. The caption to the picture says "The fuel truck (aircraft tanker) flew 30 meters above us and slightly ahead. Suddenly, a hatch opened in the lower part of it, from which a thick hose descended"...

I'm starting a new thread so that it doesn't hijack @airman's Do-19 evolution thread. Is the following feasible, plausible and reasonable? In this timeline the Do 19 and Ju 89 weren't cancelled on 29th April 1937. The Do 19 V3 and Ju 89 V3 prototypes were completed. 12 Do 19A-0 and as Ju 89A-0...

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