The submarine R-7 (SS-84) of the US Navy.
Technical information
| Type | Submarine |
| Displacement | 569/680 BRT |
| Length | 186 feet |
| Complement | 30 men |
| Armament | 4 torpedo tubes 1 3inch deck gun |
| Max speed | 13.5/10.5 knots (surfaced/submerged) |
| Notes on class |
All ships of the R-1 class
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| HMS P 511 (P 511) | ||
| HMS P 512 (P 512) | ||
| HMS P 514 (P 514) | Lost on 21 Jun 1942 | |
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| R-16 (SS-93) | ||
| R-17 (SS-94) (Loaned to the Royal Navy as P 512) | ||
| R-18 (SS-95) | ||
| R-19 (SS-96) (Loaned to the Royal Navy as P 514) | ||
| R-5 (SS-82) | ||
| R-6 (SS-83) | ||
| R-1 (SS-78) | ||
| R-10 (SS-87) | ||
| R-11 (SS-88) | ||
| R-12 (SS-89) | Lost on 12 Jun 1943 | |
| R-13 (SS-90) | ||
| R-14 (SS-91) | ||
| R-15 (SS-92) | ||
| R-2 (SS-79) | ||
| R-20 (SS-97) | ||
| R-3 (SS-80) (Loaned to the Royal Navy as P 511) | ||
| R-4 (SS-81) | ||
 | R-7 (SS-84) | |
| R-9 (SS-86) | ||
Full wartime service history on this vessel. | ||
Royal Navy (more on 
US Navy (more on See all Submarine classes.
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