FBA-21/1 was a 4/5 seat tourer and civil amphibian, powered by one 450 hp Hispano-Suiza 12Ga engine
FBA-21/2 was a version of 21/1,powered by one 450 hp Lorraine 12Eb engine
FBA-21/3 was a flying boat/amphibian version,powered by one 420 hp Gnome-Rhône 9Ab engine
FBA-21/4 was a flying boat/amphibian version,powered by one 450 hp Lorraine 12Ed engine
FBA-210 was a little known version
Aircraft
Schreck FBA-19 / HMT.3
A two-seat bombing flying boat, later developed into HMT.3, a three-seat bombing recce flying boat
Schreck FBA-18
A tourer 300 hp HS engine amphibian, with new shape, maybe a Project
Schreck FBA 17

The FBA 17 was a utility type which established a seaplane height record in December 1923.
Two hundred were built, mainly for the French Navy. A development was brought by US Coast Guard in 1931.


FBA-17 was a two-seat trainer flying boat HE.2,developed in many categories,HT.2 two seat tourer,HMT.2 military seaplane,HMB.2 also a military seaplane, HT.4 a four-seat tourer, HMT.4 a four-seat amphibian version, HL.1 & HL.2 recce seaplane with single and two seats and HMT.2 amphibian version of Type-172.
FBA-172 was the same as Type-17, developed in three versions, HE.2, HTM.4 & HMT.2 with different engine kinds
Developed from the HE2 and HMT2 variants, twenty FBA 17HL2 were built for the French Navy in 1927 and served on Cruisers until 1937.
FBA-173 was a version fitted with 230 hp Gnome-Rhone engine
262 built.
Variation:
Viking Flying Boat Co V-2
Engine: 180 hp Hispano-Suiza 8Ab
Span: 42 ft 4 in
Top speed: 100 mph
17HL2
Engine: Hispano-Suiza, 180 hp
FBA-173
Engine: 230 hp Gnome-Rhone
Schreck FBA 16
A side-by-side two-seat trainer flying-boat HE.2, powered by one 150 HS engine.
Schreck FBA-14
A two-seat trainer flying boat HE.2, it was based on FBA-11
Schreck FBA-13
A two-seat trainer flying boat HE.2, with basic dual control
Schreck FBA-12
A two-seat trainer flying boat HE.2, maybe a Project
Schreck FBA-11
A two-seat training flying boat HE.2, powered by one 130 hp Clegret 9B engine
Schreck FBA-10 / M-1
A two or three seat amphibian seaplane, with 420 hp engine