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FAI Balloon/Airship Classes

The FAI Ballooning Comission (CIA) is the international organization that regulates and sanctions balloon and airship competition and records. Within the Balloon and Airship classes, the following sub-classes have been established:

Balloons (Class A) Airships (Class B)
AA non-pressurized gas balloons BA non-rigid gas airships, i.e. blimps
AX hot air balloons BX hot air airships
AM mixed lift balloons (Rozières) BR rigid gas airships
AS superpressure balloons    

Balloon (Class A) Sub-Classes according to Volume
AA AX AM AS Volume in m3 Volume in cu. ft.
AA-1 AX-1 AM-1 AS-1 250 and less 8,829 and less
AA-2 AX-2 AM-2 AS-2 250 to 400 8,829 to 14,126
AA-3 AX-3 AM-3 AS-3 400 to 600 14,126 to 21,189
AA-4 AX-4 AM-4 AS-4 600 to 900 21,189 to 31,783
AA-5 AX-5 AM-5 AS-5 900 to 1,200 31,783 to 42,378
AA-6 AX-6 AM-6 AS-6 1,200 to 1,600 42,378 to 56,504
AA-7 AX-7 AM-7 AS-7 1,600 to 2,200 56,504 to 77,693
AA-8 AX-8 AM-8 AS-8 2,200 to 3,000 77,693 to 105,945
AA-9 AX-9 AM-9 AS-9 3,000 to 4,000 105,945 to 141,260
AA-10 AX-10 AM-10 AS-10 4,000 and above 141,260 and above
AA-11 AX-11 AM-11 AS-11 ? ?
AA-12 AX-12 AM-12 AS-12 ? ?
AA-13 AX-13 AM-13 AS-13 ? ?
AA-14 AX-14 AM-14 AS-14 ? ?
AA-15 AX-15 AM-15 AS-15 ? ?

Airship (Class B) Sub-Classes according to Volume
BA BR BX Volume in m3 Volume in cu. ft.
BA-1 BR-1 BX-1 400 and less 14,126 and less
BA-2 BR-2 BX-2 400 to 900 14,126 to 31,784
BA-3 BR-3 BX-3 900 to 1,600 31,784 to 56,505
BA-4 BR-4 BX-4 1,600 to 3,000 56,505 to 105,948
BA-5 BR-5 BX-5 3,000 to 6,000 105,948 to 211,896
BA-6 BR-6 BX-6 6,000 to 12,000 211,896 to 423,792
BA-7 BR-7 BX-7 12,000 to 25,000 423,792 to 882,900
BA-8 BR-8 BX-8 25,000 to 50,000 882,900 to 1,765,800
BA-9 BR-9 BX-9 50,000 to 100,000 1,765,800 to 3,531,600
BA-10 BR-10 BX-10 100,000 and above 3,531,600 and above

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