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Appendix 4:
FAI categories
For the purpose of homologating records the FAI
groups all aircraft into the following categories:
A (Free balloons)
AA Gas balloons,
AM Mixed (hot air plus gas),
AX Hot air. The following suffix numbers indicate
envelope volume:
1 up to 250 m 3 , 2 250–400,
3 400–600, 4 600–900,
5 900–1,200, 6 1,200–1,600,
7 1,600–2,200, 8 2,200–3,000,
9 3,000–4,000, 10 4,000–6,000,
11 6,000–9,000, 12 9,000–12,000,
13 12,000–16,000, 14 16,000–22,000,
15 22,000+.
B (Dirigibles)
BA Gas filled
BM Mixed
BX Hot-air airships, suffixes:
3 900–1,600 m 3 , 4 1,600–3,000,
5 3,000–6,000, 6 6,000–12,000,
7 12,000–25,000, 8 25,000–50,000,
9 50,000–100,000, 10 100,000 +.
C (Aeroplanes)
Group I Piston-engined.
C-1-a/o Landplanes up to 300 kg empty weight,
C-1-a 300–500, b 500–1,000,
c 1,000–1,750, d 1,750–3,000,
e 3,000–6,000, f 6,000–8,000.
C-2 Seaplanes. a up to 600 kg,
b 600–1,200, c 1,200–2,100,
d 2,100–3,400.
C-3 Amphibians. Weight classes as C-2.
Group II Turboprops. As Group I plus
C-1-g 8,000–12,000 kg, h 12,000–16,00
i 16,000–20,000, j 20,000–25,000.
Group III Turbojets and turbofans. As above plus
C-1-k 25,000–35,000 kg, l 35,000–45,000,
m 45,000–55,000.
Group IV Rocket aircraft. As Group I.
D (Gliders):
D-1 Single-seat, D-2 Multi-seat.
DM (Motor-gliders):
DM-1 Single-seat, DM-2 multi-seat.
E (Rotorcraft)
E-1 Land rotorcraft. Weight categories as for Group I
landplanes.
E-2 Convertiplanes, E-3 Autogyros, E-4 Vertiplanes.
F (Model aircraft): Various subsections.
G (Parachuting): Various subsections.
H (Jet-lift VTOL aircraft): This section is growing.
I (Human-powered aircraft)
K (Spacecraft): Various types of mission.
M (Tilt-wing/engine aircraft)
N (STOL aircraft): The FAI is having difficulty in
drawing demarcation lines for this category.
O (Hang-gliders and paragliders):
Various subsections.
P (Aerospace craft):
Category new in 1985.
R (Microlights):
Category new in 1985, various subsections.
S (Space models)
Category new in 1999.
U (Unmanned aerial vehicles)
Category new in 2001.
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