Data from
Ka-14
Six prototypes with various engines and design modifications.

A5M1
Navy carrier-based fighter, Model 1 : first production model with 633 kW (850 hp) Kotobuki 2 KAI I engine.

A5M2/2a
Model 21: More powerful engine.

A5M2b
Model 22:  First production examples with NACA cowling and 477 kW (640 hp) Kotobuki 3 engine.

A5M3a
Prototypes with 448 kW (601 hp) Hispano-Suiza 12 Xcrs engine.

A5M4
Model 24 (ex-Model 4): The A5M2b with different engine, closed cockpit, additional detachable fuel tank.
The last production models (Model 34) with Kotobuki 41 KAI engine.

A5M1-A5M4
780 constructed by Mitsubishi.
39 constructed by Watanabe, 161 manufactured by Naval Ohmura Arsenal.

A5M4-K
Two-seat trainer version of A5M4, 103 constructed by Naval Ohmura Arsenal.

Ki-18
Single prototype land-based version for IJAAF, based on the A5M. 410 kW (550 hp) Kotobuki 5 engine.

Ki-33
Two prototypes, a development of Ki-18 with a different engine, and closed cockpit.

Total Production (all variants): 1,094
Data from
Ka-14
Six prototypes with various engines and design modifications.
A5M1
Navy carrier-based fighter, Model 1 : first production model with 633 kW (850 hp) Kotobuki 2 KAI I engine.
A5M2/2a
Model 21: More powerful engine.
A5M2b
Model 22:  First production examples with NACA cowling and 477 kW (640 hp) Kotobuki 3 engine.
A5M3a
Prototypes with 448 kW (601 hp) Hispano-Suiza 12 Xcrs engine.
A5M4
Model 24 (ex-Model 4): The A5M2b with different engine, closed cockpit, additional detachable fuel tank. The last production models (Model 34) with Kotobuki 41 KAI engine.
A5M1-A5M4
780 constructed by Mitsubishi. 39 constructed by Watanabe, 161 manufactured by Naval Ohmura Arsenal.
A5M4-K
Two-seat trainer version of A5M4, 103 constructed by Naval Ohmura Arsenal.
Ki-18
Single prototype land-based version for IJAAF, based on the A5M. 410 kW (550 hp) Kotobuki 5 engine.
Ki-33
Two prototypes, a development of Ki-18 with a different engine, and closed cockpit.
Total Production (all variants): 1,094
Mitsubishi A5M