• [+] Civil aircraft 1920-1929 (23 C)
• [+] Military aircraft 1920-1929 (28 C)

A

• [+] Airliners 1920-1929 (11 C)
• [+] Attack aircraft 1920-1929 (1 C)
• [+] Australian aircraft 1920-1929 (1 C)
• [+] Austrian aircraft 1920-1929 (1 C)

B

• [+] Belgian aircraft 1920-1929 (4 C, 1 P)
• [+] Bomber aircraft 1920-1929 (9 C)
• [+] British aircraft 1920-1929 (14 C, 1 P)

C

• [+] Canadian aircraft 1920-1929 (5 C)
• [+] Chinese aircraft 1920-1929 (1 C)
• [+] Czechoslovakian aircraft 1920-1929 (12 C, 1 P)

D

• [+] Dutch aircraft 1920-1929 (2 C)

E

• [+] Experimental aircraft 1920-1929 (7 C)

F

• [+] Fighter aircraft 1920-1929 (16 C)
• [+] Finnish aircraft 1920-1929 (2 C)
• [+] French aircraft 1920-1929 (12 C)

G

• [+] German aircraft 1920-1929 (14 C, 4 P)
• [+] Greek aircraft 1920-1929 (1 P)

I

• [+] Italian aircraft 1920-1929 (10 C)

J

• [+] Japanese aircraft 1920-1929 (7 C)

M

• [+] Mailplanes 1920-1929 (5 C)
• [+] Military reconnaissance aircraft 1920-1929 (16 C, 1 P)

N

• [+] Norwegian aircraft 1920-1929 (1 C)

P

• [+] Patrol aircraft 1920-1929 (6 C)
• [+] Polish aircraft 1920-1929 (9 C)

S

• [+] Sailplanes 1920-1929 (2 C, 2 P)
• [+] Soviet aircraft 1920-1929 (9 C, 1 P)
• [+] Soviet and Russian aircraft 1920-1929 (1 C, 1 P)
• [+] Special-purpose aircraft 1920-1929 (3 C)
• [+] Sport aircraft 1920-1929 (11 C)

T

• [+] Military trainer aircraft 1920-1929 (17 C)
• [+] Military transport aircraft 1920-1929 (4 C)

U

• [+] United States aircraft 1920-1929 (15 C, 3 P)
• [+] Civil utility aircraft 1920-1929 (10 C)
• [+] Military utility aircraft 1920-1929 (4 C)

Y

• [+] Yugoslav aircraft 1920-1929 (2 C)