| Designation |
Manufacturer |
Official Name |
Description |
| K1Y1/K1Y2 |
Yokosuka |
Navy Type 13 Training Seaplane |
Single-engined biplane; obsolete in 1941 |
| K2Y1/K2Y2 |
Yokosuka |
Navy Type 3 Primary Trainer |
|
| K3M1/K3M3 |
Mitsubishi |
Navy Type 90 Operations Trainer |
|
| K4Y1 |
Yokosuka |
Navy Type 90 Training Seaplane |
|
| K5Y1/K5Y5 |
Yokosuka |
Navy Type 93 Advanced Trainer |
|
| K6K1 |
Kawanishi |
Navy Experimental 11-Shi Advanced Trainer Seaplane |
Single-engined biplane; not proceeded with |
| K6M1 |
Mitsubishi |
Navy Experimental 11-Shi Advanced Trainer Seaplane |
Single-engined biplane; not proceeded with |
| K6W1 |
Watanabe |
Navy Experimental 11-Shi Advanced Trainer Seaplane |
Single-engined biplane; not proceeded with |
| K7M1 |
Mitsubishi |
Navy Experimental 11-Shi Crew Trainer |
Twin-engined monoplane; not proceeded with |
| K8K1 |
Kawanishi |
Navy Type 0 Primary Trainer Seaplane |
Single-engined biplane; fifteen built |
| K8P1 |
Nihon |
Navy Experimental 12-Shi Primary Trainer Seaplane |
Single-engined biplane; not proceeded with |
| K8W1 |
Watanabe |
Navy Experimental 12-Shi Primary Trainer Seaplane |
Single-engined biplane; not proceeded with |
| K9W1 |
Kyushu |
Navy Type 2 Primary Trainer Momiji |
|
| K10W1 |
Kyushu |
Navy Type 2 Intermediate Trainer |
|
| K11W1 |
Kyushu |
Navy Operations Trainer Shiragiku |
|
| KXA1/KXA2 |
North American |
Navy Experimental Type A Intermediate Trainer (North American NA-16) |
|
| KXBu1 |
Bücker |
Navy Experimental Type Bu Primary Trainer (Bücker Bü 131) |
|
| KXC1 |
Caudron |
Navy Experimental Type C Trainer (Caudron C-600) |
One aircraft tested |
| KXHe1 |
Heinkel |
Navy Experimental Type He Trainer (Heinkel He 72) |
One aircraft tested |
| KXJ1 |
Junkers |
Navy Experimental Type J Trainer (Junkers A-50) |
One aircraft tested |
