• Junkers J 1, (no military designation) world's first-ever full metal-structure aircraft, 1915.
• Junkers J 2, (no military designation) experimental all-metal single seater, designed as fighter, 1916.
• Junkers J 3, mid-wing monoplane, cancelled before completion, first proposed corrugated-skin duralumin design.
• Junkers J 4, (military J.I) armored-fuselage sesquiplane full metal close support aircraft, 1917
• Junkers J 5, unbuilt monoplane scout with engine behind pilot.
• Junkers J 6, unbuilt parasol monoplane scout.
• Junkers J 7, prototype for J 9, 1917.
• Junkers J 8, twin-seat development of J 7, 1917.
• Junkers J 9, (military D.I) all-duralumin single-seat fighter, built in J.9/I and J.9/II (lengthened wingspan and rear fuselage) versions, 1918.
• Junkers J 10, (military CL.I) all-duralumin monoplane close support aircraft, 1918.
• Junkers J 11, (navy C3MG, military CLS.I) floatplane version of J 10, 1918.
• Junkers J 12, prototype four-seat airliner developed from the J 10, precursor of F.13, 1919.
• Junkers F 13, passenger plane, 1919 originally J 13, sold as Junkers-Larsen in US, 1919.
• Junkers JG1, large monoplane project, 1921.
• Junkers J 15, precursor of J/K 16, 1920
• Junkers K 16, small single-engined passenger plane, alternatively known as J 16, 1922.
• Junkers J 17, improved K 16, not built.
• Junkers J 18, navy survey aircraft, not built.
• Junkers T 19, trainer and tourer, alternately known as J 19, 1922.
• Junkers A 20, light transport, 1923.
• Junkers J 21, also known as T 21 and H 21, reconnaissance aircraft for Red Army built in Russia, 1923.
• Junkers J 22, also known as H 22, for Red Army, fighter similar to J 21, 1922.
• Junkers T 23, sports mono- or biplane, 1923.
• Junkers G 23, 3-engined 10-seat airliner, 1923.
• Junkers G 24, enlarged G 23, 1925.
• Junkers F 24, single-engined development of G 23, 1928.
• Junkers A 25, A 20s re-engined with Junkers L2 engines, 1926.
• Junkers T 26, training and sports aircraft, 1925.
• Junkers T 27, a re-engined T 26, 1925.
• Junkers J 28, two-seat version of T.21, not built.
• Junkers J 29, sports monoplane, double wing development aircraft, 1925.
• Junkers K 30, military version of G 24, 1930.
• Junkers G 31, 15 seat airliner, 1926.
• Junkers A 32, experimental monoplane, 1926.
• Junkers W 33, single-engined light transport, (developed from F.13) 1926.

Junkers W33 Bremen after the first East-West Atlantic crossing

• Junkers W 34, single-engine light transport + reconnaissance (development of W33), 1933.
• Junkers A 35, postal, training and military aircraft, 1926.
• Junkers S 36, twin-engined mail plane, 1927.
• Junkers K 37, military version of S 36, 1928.
• Junkers G.38, four-engined commercial transport, world's largest landplane when built, 1929.
• Junkers K 39, experimental reconnaissance-bomber (development of A 32), 1927.
• Junkers J 40, prototype large flying boat airliner (G.38 derived), 1926.
• Junkers W 41, an F 24 re-engined with a Junkers Fo 4 diesel engine, 1928.
• Junkers R 42, designation for Swedish built K 30s.
• Junkers K 43, reconnaissance monoplane, 1927.
• Junkers J 44, prototype replacement for A 35, 1927.
• Junkers K 45, a single Ju 52 converted to a torpedo bomber, 1932.
• Junkers Ju 46, catapult mailplane derived from W 34.
• Junkers K 47, close support aircraft, prototype of K.48, 1927.
• Junkers A 48, production dive bomber, 1928.
• Junkers Ju 49, high altitude research aircraft, 1931.
• Junkers A50, sports monoplane, 1929.
• Junkers K 51, Ki-20 heavy bomber for Japan, c.1934.
• Junkers Ju 52, single-engined precursor to Ju 52/3m, 1930
• Junkers Ju 52/3m Tante Ju (Auntie Ju), passenger airliner and freighter, used as transport + bomber during World War II, 1932.
• Junkers K 53, designation for Swedish built A 35's.
• Junkers J 54, prototype replacement for A 35, 1929.
• Junkers J 56, prototype replacement for K 16, 1930.
• Junkers J 58, prototype replacement for F 13 & W 34, 1929.
• Junkers Ju 60, low wing high speed airliner, 1932.
• Junkers K 85, proposed torpedo bomber version of Ju 86 for Sweden, 1933.
• Junkers Ju 85, prototype twin-engined bomber similar to Ju 86, not built.
• Junkers Ju 86, twin-engined airliner, bomber + reconnaissance, 1934.
• Junkers Ju 87, Stuka, dive-bomber, 1935.
• Junkers Ju 88, bomber + reconnaissance + night-fighter.
• Junkers Ju 89, heavy transport, heavy bomber (prototype), 1936.
• Junkers Ju 90, four-engined airliner, transport developed from Ju 89, 1937.
• Junkers Ju 160, low wing high speed airliner developed from Ju 60, 1934.
• Junkers Ju 186, four-engined high-altitude prototype version of Ju 86, not built.
• Junkers Ju 187, close support aircraft project, cancelled after mock-up built.
• Junkers Ju 188, Rächer,bomber, 1941.
• Junkers Ju 248, re-designation of Me 263.
• Junkers Ju 252, transport developed from the EF 77, 1941.
• Junkers Ju 268, parasite bomber project, 1944.
• Junkers Ju 286, six-engined high-altitude version of Ju 86, not built.
• Junkers Ju 287, prototype jet-engined bomber with swept forward wings, 1945.
• Junkers Ju 288, bomber (prototype), 1941.
• Junkers Ju 290, transport, patrol, 1941.
• Junkers Ju 322, Mammut (Mammoth), transport glider (prototype), 1941.
• Junkers Ju 352, Herkules (Hercules), transport, 1944.
• Junkers Ju 388, Störtebeker, reconnaissance + night-fighter, 1943.
• Junkers Ju 390, long-range bomber (Amerika Bomber) (prototype) developed from Ju 290, 1943.
• Junkers Ju 488, proposed heavy bomber design.
• Junkers J 1000, large flying-wing airliner, 1924.

Experimenta

• Junkers EFo 008
• Junkers EFo 009, Hubjäger (Lift-Fighter), jet fighter project
• Junkers EFo 010
• Junkers EFo 011
• Junkers EFo 012
• Junkers EFo 015
• Junkers EFo 017
• Junkers EFo 018
• Junkers EFo 019
• Junkers EFo 021, 40-passenger double-deck trans-Atlantic airliner project, 1938.
• Junkers EFo 043, glider transport or remote controlled glider bomb
• Junkers EF 017, design designation for A 32/K 39
• Junkers EF 024, design designation for A 48
• Junkers EF 029, design designation for Ju 49
• Junkers EF 030, design designation for W41 (and possibly for Ju 52)
• Junkers EF 031, design designation for A50
• Junkers EF 034, four-seat traveling aircraft, "Luftlimousine" (flying limousine), 1929.
• Junkers EF 037, twin-engined military aircraft, 1930.
• Junkers EF 048, twin-engined multipurpose military aircraft developed from the K 37, 1933.
• Junkers EF 049, twin engine development of the Ju 52/1m, 1933.
• Junkers EF 050, VTOL design study, similar to the Fa 269
• Junkers EF 052, K 85 design study
• Junkers EF 053, trans-Atlantic airliner project, later redesigned as the EF 100.
• Junkers EF 055, Ju 287 design study
• Junkers EF 056, Ju 287 design study
• Junkers EF 057, Ju 287 design study
• Junkers EF 058, Ju 287 design study
• Junkers EF 059, Ju 88 design study
• JUnkers EF 060, early design for EF 127 and EF 128.
• Junkers EF 061, high-altitude fighter + reconnaissance (prototype), 1936.
• Junkers EF 062, early EF 128 design study
• Junkers EF 063, early EF 128 design study
• Junkers EF 065, possible early EF 082 design study, 1939.
• Junkers EF 072, early EF 077 design study
• Junkers EF 073, design designation for Ju 288.
• Junkers EF 077, design designation for Ju 252.
• Junkers EF 082, combat battle aircraft project.
• Junkers EF 094, design designation for Ju 322.
• Junkers EF 100, long-range maritime reconnaissance/bomber developed from the EF 053, 1940.
• Junkers EF 101, a design for a carrier aircraft that carried one "parasite" plane. It had a range of 10564 miles, and carried twin propellers on each of its four engines.
• Junkers EF 112, twin-boom ground attack aircraft project, 1942.
• Junkers EF 115, bomber project
• Junkers EF 116, W-wing jet bomber project, 1943.
• Junkers EF 122, four engine development of Ju 287.
• Junkers EF 125, two-engine development of Ju 287, developed into the EF 140.
• Junkers EF 126, 1944 pulse-jet fighter project, completed post-war in the USSR.
• Junkers EF 127, rocket powered version of EF 126.
• Junkers EF 128, jet fighter project
• Junkers EF 130, four-engined flying wing bomber project, 1943.
• Junkers EF 131, six-engine development of Ju 287, completed post-war in USSR.
• Junkers EF 132, heavy bomber, partly built in USSR but not completed.
• Junkers EF 135, development of EF 130
• Junkers EF 137, jet fighter design study, 1943.
• Junkers EF 140, bomber/reconnaissance, forward sweep, completed post-war in USSR.
• Junkers EF 150, bomber, largely Russian designed and completed post-war in USSR.

Aircraft engines[

All Junkers diesel engines were two stroke, opposed piston designs, an arrangement he invented in the early 1890s. It was intended to provide an alternative to Nicholaus Otto's patented four stroke which would run on low grade fuels such as blast furnace waste gases. By 1896 Junkers engines were generating electrical power in steelworks.

• Junkers Fo2, horizontal, petrol, c.1923.
• Junkers L1, petrol, c. 1924.
• Junkers L2, petrol, 1925.
• Junkers L5, enlarged L 2, petrol, 1925.
• Junkers Fo3, diesel, 1926.
• Junkers L55, "double L5" (V12), petrol, 1927
• Junkers L7, small version of L2, petrol; not flown.
• Junkers Fo4, diesel, commercially called the Junkers SL1, 1928.
• Junkers L8, petrol, geared, higher power development of L5, 1929.
• Junkers L88, "double L8" (V12), petrol.
• Jumo 204, development of the SL1, initially referred to as the Jumo 4, 1930.
• Jumo 205, diesel, reduced displacement version of the Jumo 204, initially known as the Jumo 5, 1933.
• Jumo 206, diesel, higher power version of 205, 1936.
• Jumo 207, diesel, supercharged version of 205, 1939.
• Jumo 208, diesel, c.1940
• Jumo 209, diesel, unbuilt development of 207/208
• Jumo 210, initially known as L10, petrol inverted V12, c. 1932.
• Jumo 211, petrol, inverted V12, enlarged variant of 210, 1936.
• Jumo 212, petrol, projected inverted V24 with two Jumo 211 engines.
• Jumo 213, petrol, inverted V12, smaller version of 211, 1940.
• Jumo 218, diesel, unbuilt 12 cylinder version with two 208 engines.
• Jumo 222, petrol, 24-cylinder, 6-bank radial, 1939.
• Jumo 223, diesel, experimental 24 cylinder with four 207 engines arranged in a box shape.
• Jumo 224, diesel, higher power version of 223, development continued in the Soviet Union.
• Jumo 225, petrol, projected 36-cylinder, multi-bank radial developed from the 222.
• Junkers 109-004, turbojet, 1940.
• Junkers 109-012, turbojet, few completed by Soviets, 1946.
• Junkers 109-022, turboprop, project completed by Soviets, 1950.