I-21
| Drawing Information: | |
|---|---|
| Category: | Real Designs |
| Country: | Japan  |
| Type: |
Submarine 
» Minelaying Submarine |
| Class: | Kiraisen-Gata (I-21/I-121) |
| Ship: | I-21 |
| Operator: | Military |
| Date Depicted: | 1928 |
| Date Submitted: | Nov 13, 2018 |
| Last Revised: | Jan 15, 2024 |
| View(s): | Starboard Elevation |
| Author(s): | Novice, |