Aircraft by Nation:

Austria-Hungary
Anatra C.I
Aviatik D.I
Fokker E.III
Lloyd C.II
Phönix D.III
Belgium
Farman F.40
Hanriot HD.1
Sopwith Camel
SPAD VII
Bulgaria
Albatros C.III
France
Blériot XI
Farman F.40
Morane Saulnier L
Nieuport 11
Nieuport 17
Sopwith Triplane
SPAD A.2
SPAD VII
Germany
Albatros C.III
Fokker D.VII
Fokker Dr1
Fokker E.III
Pfalz A.II
Pfalz D.III
Taube
Great Britain
Avro 504
Bristol Scout
DeHavilland D.H.2
DeHavilland D.H.4
Morane Saulnier L
Nieuport 17
RAF S.E.5
Sopwith Camel
Sopwith Triplane
SPAD VII
Vickers F.B.5
Greece
Sopwith Camel
Italy
Ansaldo S.V.A.5
Hanriot HD.1
Caproni Ca.3
Nieuport 11
Ottoman Empire
Albatros C.III
Fokker D.VII
Fokker E.III
Portugal
Farman F.40
Romania
Nieuport 11
Russian Empire
Anatra DS
Morane Saulnier L
Nieuport 11
Sikorsky S-16
SPAD A.2
Serbia
SPAD VII
United States
Curtis JN-4
DeHavilland D.H.4
RAF S.E.5
Sopwith Camel