| Engine name | manufacturer | configuration | cylinders |
|---|---|---|---|
| Hercules XX | Bristol | Radial | 14 |
| Hi V-12 | Mitsubishi | V | 12 |
| Hikari 1 | Nakajima | Radial | 9 |
| Hikari 1-kai | Nakajima | Radial | 9 |
| Hikari 2 | Nakajima | Radial | 9 |
| Hikari 3 | Nakajima | Radial | 9 |
| HM 501A | Hirth | V | 6 |
| Homare 11 | Nakajima | Radial | 18 |
| Homare 12 | Nakajima | Radial | 18 |
| Homare 21 | Nakajima | Radial | 18 |
| Homare 22 | Nakajima | Radial | 18 |
| Homare 23 | Nakajima | Radial | 18 |
| Homare 24 | Nakajima | Radial | 18 |
| I-A | General Electric | Jet | |
| J31-GE-3 | General Electric | Jet |