The sole 1934 Ba.46 three engined low-wing monoplane bomber/transport I-SEBM was designed to carry 12 troops or a 2200 lb bombload. It was created based on the transport aircraft Breda Ba.32.
With fixed spatted main undercarriage, the Ba.46 was first flown with 3 x 320 hp P&W Wasp Junior air-cooled radials and NACA cowls in 1932.
It was modified to 3 x 500 hp IF Asso 500 liquid-cooled V-12s, and some sources say 3 x 650 hp AR Pegasus (possibly a third re-engining)
The aircraft successfully underwent testing; however, its flight characteristics were not militarily satisfactory and it was soon dismantled.
Engines: 3x Isotta-Fraschini Asso 500, 500 hp
Span: 28.80 m
Length: 10.60 m
Wing area: 108.20 sq.m
Empty weight: 5600 kg
Normal takeoff weight: 8200 kg
Maximum speed: 272 km/h
Cruising speed: 226 km/h
Service range: 840 km
Service ceiling: 6000 m
Armament: 3x 7.7 mm machine guns