Udet-FlugzeugbauRepublik WeimarUfagperusahaan
UkroboronpromUkrainaUkrspecsystemsUkraina
Ulan-Ude Aviation PlantRusia
United Aircraft CorporationRusia
United States Naval Research LaboratoryAmerika Serikat
United Technologies CorporationAmerika Serikat
Universitas Teknik DelftBelandaUral Works of Civil AviationRusiaUtva Aviation IndustrySerbia
UkroboronpromUkrainaUkrspecsystemsUkrainaUlan-Ude Aviation PlantRusiaUnited Aircraft CorporationRusiaUnited States Naval Research LaboratoryAmerika SerikatUnited Technologies CorporationAmerika SerikatUniversitas Teknik DelftBelandaUral Works of Civil AviationRusiaUtva Aviation IndustrySerbia