List of foreign aircraft tested by Japanese forces from 1930s to WW2

This is a list of foreign aircraft tested and evaluated by Japanese forces, between 1930 and 1945. It includes received or acquired types and aircraft captured during war.

[[france|🇫🇷]] French aircraft

 * Caudron C-600 Purchased as Caudron KXC Type C Trainer
 * Dewoitine D.510J Purchased as Dewoitine AXD Type D Carrier Fighter
 * Nieuport-Delage NiD 29 Licensed production as the Nakajima Ko-4
 * Potez 542 Purchased as Potez HXP flying boat
 * Potez 25 Purchased as Potez CXP for Diesel Engine Experiment
 * Salmson 2A2 License production as the Army Type Otsu 1

[[germany|🇩🇪]] German aircraft

 * Bücker Bü 131 Purchased as Bücker KXBu Type Bu Primary Trainer Bücker
 * Dornier N License built as Kawasaki Type 87 bomber
 * Focke-Wulf Fw 190A5 Tested
 * Heinkel He 50A Purchased He 66 (export version of the He 50) license built by Aichi as the D1A1
 * Heinkel He 70 Purchased as Heinkel LXHe Type He Transport
 * Heinkel He 100D Purchased as Heinkel AXHe Type He Interceptor Fighter
 * Heinkel He 112B-0 Purchased as the Heinkel A7He1 and as the Navy Type He Air Defense Fighter
 * Heinkel He 116A Purchased V5 and V6
 * Heinkel He 118V4 Purchased as Heinkel DXHe Type He Attack Plane
 * Junkers F.13
 * Junkers G 38 Licensed built as Mitsubishi Army Type 92 Heavy Bomber later reidentified as Ki-20
 * Junkers Ju 86Z Five purchased for use by Manchukuo National Airways (Manchukuo was a Japanese puppet state)
 * Junkers Ju 87A1 Tested
 * Junkers Ju 160 Two examples purchased for commercial use
 * Messerschmitt Bf 108
 * Messerschmitt Bf 109E Tested
 * Messerschmitt Me 210

[[italy|🇮🇹]] Italian aircraft

 * Fiat BR.20 Purchased as Fiat Type I Heavy Bomber

Soviet aircraft

 * Lavochkin LaGG-3 captured
 * Polikarpov I-15 captured
 * Polikarpov I-15bis captured
 * Polikarpov I-16 captured
 * Tupolev SB captured

[[united kingdom|🇬🇧]] United Kingdom aircraft

 * Bristol Blenheim Captured
 * Bristol Bulldog
 * Hawker Hurricane Captured
 * Hawker Nimrod Purchased as Hawker AXH Type H Carrier Fighter

[[united states|🇺🇸]] United States aircraft

 * Beechcraft C17E Staggerwing 20 built under licence by Tachikawa
 * Brewster Buffalo Captured from Netherlands East Indies Air Force and Royal Air Force
 * Boeing Model 100 Purchased as Boeing AXB Type B Carrier Fighter
 * Boeing B-17 Several captured
 * Consolidated P2Y-1 Consolidated HXC Type C Flying boat
 * Curtiss P-40 Captured
 * Curtiss-Wright BT-32 Captured transport/bomber from China
 * Curtiss Courtney Purchased as Curtiss-Wright LXC Type C Amphibious Transport
 * Curtiss-Wright CW-21 Captured fighters from Netherlands East Indies
 * Curtiss-Wright CW-22 Captured trainers from Netherlands East Indies
 * Douglas DF Two purchased as Douglas HXD Type D Flying boat boat
 * Douglas DC-2 License built by Nakajima
 * Douglas DC-3 License built by Showa and Nakajima as L2D2 thru L2D5 Type 0 transport
 * Douglas DC-4E Purchased as Douglas LXD Type D Transport
 * Douglas DC-5 Captured transport from Netherlands East Indies
 * Douglas DB-7 Captured bomber from Netherlands East Indies
 * Douglas DB-19 Purchased as Douglas DXD-1 Type D Attack Plane
 * Fairchild 22
 * Fairchild A-942 Purchased as Fairchild LXF Type F Amphibious Transport
 * Fokker Super Universal License built as Nakajima Ki-6 and C2N1
 * Grumman FF-1 Purchased Canadian Car and Foundry AXG Type G Carrier Fighter
 * Grumman F6F Hellcat Captured (may not have been test flown)
 * Grumman G-21 Goose purchased as Grumman LXG Amphibian Flying Boat
 * Kinner Envoy Purchased as Kinner LXK Type K Transport
 * Lockheed 10 Purchased as Lockheed KXL1 Type LO Twin-engined Trainer
 * Lockheed 14 Purchased as Lockheed Type LO Transport
 * Martin 139 Captured bombers from Netherlands East Indies
 * North American NA-16-4R/NA-37 One purchased as North American KXA-1 Type A Intermediate Trainer
 * North American NA-16-4RW/NA-47 One purchased as North American KXA-2 Type A Intermediate Trainer
 * North American P-51 Captured
 * Northrop Gamma 5A Purchased as Northrop BXN-1
 * Northrop Gamma 5D Purchased as Northrop BXN-2
 * Ryan STM-S2 Captured trainers from Netherlands East Indies
 * Seversky 2PA Purchased as Seversky A8V-1 Navy Type S Two-Seat Fighter
 * Vought V-65C Corsair Captured from China
 * Vought O2U Corsair Produced under licence (with some modifications) in Japan as the Nakajima E4N Navy Type 90-2 Reconnaissance Seaplane
 * Vought V-143 Purchased as Vought AXV Type V Interceptor Fighter
 * Vought F4U Corsair Captured (may not have been test flown)