1592952934000 1312632483000 term-23553 1755628131090 1755615970000 1755628127661 adlib fitz-online adlib-term-23553 eae27c5e-e5e8-37af-8a87-f5a0cefeb4bd 3 1 scope note Branch of aeronautics which includes the design, production, and operation of aircraft, particularly heavier-than-air aircraft. RHDEL2 K.KD.AFU.ALO.AFU.AFU.AFU 1 code K.KD.AFU.ALO.AFU.AFU.AFU 1 aviation reference term-23551 adlib-term-23551 f751ec22-1a8e-3eff-a282-3128c34cbe76 aeronautics aviation term