pre-world war ii

Since the end of the First World War, bold attempts were made in the Soviet Union in the field of rockets and various types of weapons, although timid, but existing and somewhat significant for the hard period that the Union was going through at that time, sometimes typically handcrafted and...

In the magazine "Décollage" N°64 of 06.19.1947- p 12 .a reader Mr. Alphonse Martin informed the editorial staff of the magazine that he realized in 1939 the plans of a self-guided bomb. It is a gliding bomb launched by plane and equipped with an automatic piloting device which directs it towards...

You may read some info from Maiwaffentrager's blog or somewhere else, which I seriously doubt any credibility. I would assume that these names show some certain design features, rather than factory names, I'll explain now. What Maiwftrgr. said Ai-96, Mitsu-97, Mitsu-104, Ishi-108, have names to...

Does anyone know Bohler 47mm L70? In WW2,Bohler 47mm L32 M1935 was famous,but according to some articles,47mm L32 couldn't be used well against tanks in the war,so Bohler designed L55,even...L70 I failed to find its data.

From, Самолеты С. А. Лавочкина.

A design by Vladimir Gartvig, drawing by Vladimir Meshcherin. Images OSGA-25 1-4 from Russisches Design - Tradition und Experiment 1920-1990 by Alexander Lavrentiev and Yuri Nasarow, Ernst & Sohn 1995. Images OSGA-25 5-7 found here: https://gashetka.tumblr.com/ View...

I found an interesting chart comparing fuel efficiencies of actual aircraft. Please compare the Ju 86 with petrol and diesel engines. The difference is massive! The source is Shell Aviation News April 1939. Article by some Lufthansa director.

Hello and welcome, This is a hub for all things Kriegsmarine. You will find information, data, and even deductions like this nearly nowhere else - and I take great pride in that. So if you have a question about the Kriegsmarine, are looking for some specific ship or weapon, or even want...

Actually an early example of a signals intelligence mission: View: https://youtu.be/tfTkgT_XvCc

For these cruisers I got most of my data from Norman Friedman's British Cruisers Two World War and After as well as from the forum member Smurf and parts from his book: A Directory of British Cruiser Designs. In case of Friedman's book it wasn't always clear what data was connected to what...

A bit more conventional was the system of engines in tandem designed during the German occupation by the engineer Michel Vernisse. It was to power the Arsenal VB.10 fighter by using two Hispano-Suiza H.S. 12Z engines. One of them was installed in the nose of the airplane and the other in the...

Anyone solve the mystery?? Why, oh why did the JUNKERS G.38 4-engined prototype test-fly with a four-bladed propeller, inboard and a two-bladed propeller, outboard on each wing? All four driving engines were identical. Might this have caused any power imbalance/handling or thrust deficit issues...

Grigorii Ivanovich Bakshayev was interested in the concept of variable geometry aircraft, where the size and/or shape of wings are altered according to the stage of flight, or desired characteristics. There are many methods of achieving this but one of the simplest is the telescopic wing, where...

A big Surprise, here is a drawing and all Info about Bellanca C-24-100-P and C-24-100-M,generally it was a single or two-seat fighter,observation,light bomber and attack airplane Project,developed from Model 28-90. I don't know for which competition it was purposed,and if it was estimated to...

I believe this drawing is from one of HT Lenton's books on US Destroyers published in the early 1970's. I made a 1/1200 model of this but heve never been able to find any corroborating data on the proposed design. Can anyone shed any light on this one? Dave G The PT Dockyard

Hello there! I've been trying to find data on French aircraft carrier designs between the Joffre and the Clemenceau (PA-54). I've found plenty of data on the PA-28, but I'm very interested in the supposed PA-25 design from Vichy France and the PA-27, PA-29, PA-31 designs from 1945 onwards...

There is already a thread on what might have been in the 1930s. I want to focus on the land forces. Britain and France in 1940 had some tanks (Somua and Matilda 2) which could match the Germans. If the French and British General Staffs had understood the importance of armoured units in a...

What if the United States Army Air Corps was limited to Ford Tri-Motor transports until the onset of World War 2? For the purposes of debate, Bill Stout is allowed to update the basic Ford airframe to 23,000 pound gross weight and up to 725 horsepower per engine, but is still limited to the...

This is a take-off from Anthony Williams "Foresight War." What if you time-travelled back to the 1930s and gained access to the ears of engineers, politicians and generals? What would you suggest? You are not allowed to "predict" World War 2. To keep this thread "alternate" please do not repeat...

Note: I know there already exists a thread about SAAB designations etc but that thread also includes other companies besides SAAB. Link to thread. While i understand why those companies were included i personally think we should have a thread dedicated to each of them separately as they designed...