Manufacturers
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Kellett Autogiro Corporation
1 Aircraft
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Keystone Aircraft
4 Aircraft
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Klemming
1 Aircraft
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Komsomolsk-on-Amur Aircraft Production Association
1 Aircraft
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Kondor Flugzeugwerke
1 Aircraft
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Konstantin Kalinin
3 Aircraft
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Koolhoven
1 Aircraft
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Korea Aerospace Industries
4 Aircraft
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Kurt Tank
1 Aircraft
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Kyushu Hikoki
1 Aircraft
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Lake Aircraft
2 Aircraft
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Lancair
1 Aircraft
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Lange Aviation
1 Aircraft
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Latécoère
5 Aircraft
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Learjet
10 Aircraft
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Leonardo
4 Aircraft
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LET Aircraft Industries
3 Aircraft
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Letov Kbely
24 Aircraft
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Lilium
1 Aircraft
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Ling-Temco-Vought
2 Aircraft