interwar period

Hi, the Flygkompaniets Verkstäder at Malmen was formed in 1917/18,and as my dear Apophenia spoke about some of its airplanes http://www.secretprojects.co.uk/forum/index.php/topic,26120.msg266733.html#msg266733 All I know about it; Dronten was a two-seat recce and light bomber biplane S.18...

Hi, Austrian Igo Etrich (1879-1967) was experimented in aeronautics from 1899. After working with engineer Franz Wels he made a tailless glider with backswept wings in 1907. 1909 Etrich "Nurflügel" (Only Wings) tractor monoplane 1909 Etrich Taube (Dove) tractor monoplane 1909 Etrich-Wels...

Hi, the designer Feliksa Brodowskiego (Brodowski) made a two-seat biplane fighter Project in 1925,the design was modeled on Breguet XIV aircraft,and called Jupiter, powered by one 400 hp Jupiter engine. http://www.samolotypolskie.pl/samoloty/1432/126/Brodowski-Jupiter

Hi! Aichi Experimental AM-10 two-seat Reconnaissance Seaplane. In 1933,Aichi designed single wing experimental AM-10 two-seat reconnaissance seaplane apart from the experimental 8-shi reconnaissance seaplane. This airplane possessed the cantilevering system taper wing by which the feature of...

William E. Metzger, along with Henry G. McCarroll formed the Cadillac Aircraft Corporation in Northville, MI, in February 1929. The first design was the 1929 Duoplane, christened the Voyager (seen below). The second aircraft of 1930 was the MAC-1. The production facility was the former Stinson...

Hi, a very weird airplane designed by Alexander Chessin and Serge Trey. http://blog.modernmechanix.com/inventors-patent-odd-designs-for-safer-planes/1/#mmGal

List compiled from the excellent book The Silent Deep: The Royal Navy Submarine Service since 1945 BOREAS Class - page 131 1950s diesel-electric SSK. Smaller complement to PORPOISE Class. 1200 tons 'high quiet speed' 4 x TT in bow, 2 x TT in stern Baseline version with twin screws, then single...

A 1917 aeronautical startup by Grover Loening, the Loening Aeronatical Engineering company eventually merged with the Keystone Aircraft company and became Loening Aeronautical Division of Keystone Aircraft in 1928. In 1931 Keystone became part of Curtiss-Wright Corporation. The "Flying...

These texts were from Conway's All the World's Fighting Ships 1906-1921 and 1922-1946 Late 19th century: The 1899 Naval Expansion Programme: My notes: The 4 built river monitors were ships of the Ion C. Bratianu class The 8 river torpedo-boats are the ships of the Capitan Nicolae Lascar...

Hi, here is a strange airplane concept,I never saw like it before ?. https://books.google.com.au/books?id=yyUDAAAAMBAJ&printsec=frontcover&dq=POPULAR+SCIENCE+1935&hl=en&sa=X&ved=0CCwQ6AEwBGoVChMI-NHVp73WxwIVh44sCh3cXAzB#v=onepage&q&f=false

Hi, here is a three little known light aircraft from Italy,the first called Bottini M.B.2,the second aircraft from Mr. Crisanti and the third was Fongri - De Grignani,does anyone one know more,but must be a little known ...

I've recently found this pretty interesting Japanese Project at the Hiraga Archive. It looks like a hybrid cruiser-carrier warship from 1920's era. There seems to be a few variants mostly by how large the hanger should be and where to locate the conning tower and AA guns. Apart from the unique...

I've found calculations for a 10.000ton cruiser in the Hiraga archives. What is unique about this vessel that it would carry 4 triple 20cm heavily armoured gun turrets, though calculations shows quad turrets were considered as well, but it is unknown if it would carry the same number of such...

Anyone have any more information about dimensions and speed of this 1937 Italian sub hunter of 1300 tons with anti-submarine float plane? Love to know more about the floatplane. 3x1 120mm; 4x1 20mm; 2x2 torpedo tubes; 4 depth charge throwers, and sonar...

Hi, here is Guidoni early aircraft concepts,and his his activities in aviation about developed a floats to anther airplanes,in early period. http://www.alieuomini.it/pagine/dettaglio/uomini,5/ricordi_di_idroaviazione,21.html

I've posted this on another forum but it is better to post many forums to see if anybody know anything about this, I've got hold an extract from a naval forum about possible modernisation plans for the Kawachi class Battleship IJN Settsu which was stripped from her armament after the Washington...

Hi, during 1924,Randolph F. Hall designed a three different monoplane aircraft patents for the Thomas-Morse company. http://scripophily.net/airdesbyranh.html

Anyone know something about japanese airships until 1945 ? I have found this article on j-aircraft : http://www.j-aircraft.com/research/jas_jottings/japanese_airships.htm

The Siddeley-Deasy Sinaia, also known as the Armstrong Whitworth Sinaia and Siddeley Deasy Type 103 was a twin-engine biplane day bomber with gunners in rearwards extensions of the engine nacelles. Four examples were initially ordered by the Air Ministry in 1917 but only one (serial J6858)...

DB 608 Work on this engine were launched in 1938. DB-608 is a further development of the engine DB-601. When the working volume of 36.6 liters the engine developed takeoff power 1210 kW (1650 hp.) At 2800 rev / min. The estimated altitude is equal to 5200 meters. Dry weight was 745 pounds...