The submarine Permit (SS-178) of the US Navy.
Technical information
| Type | Submarine |
| Displacement | 1330 / 1997 BRT |
| Length | 301 feet |
| Complement | 5 + 45 men |
| Armament | Six 21" torpedo tubes, 18 torpedoes. one 3"/50 deck gun. two .50 cal machine guns. four .30 cal machine guns. |
| Max speed | 19.25 / 8.75 kts knots (surfaced/submerged) |
| Engines | Diesel / Electric 2 shaft |
| Power | 4300 / 2366 hp. (surfaced/submerged) |
| Notes on class |
All ships of the Perch class
| ||
 | Perch (i) (SS-176) | Lost on 3 Mar 1942 |
| | Permit (SS-178) | |
| | Pickerel (i) (SS-177) | Lost on 12 May 1943 |
| Plunger (SS-179) | ||
| | Pollack (SS-180) | |
| Pompano (SS-181) | Lost on 17 Sep 1943 | |
| ||
US Navy (more on See all Submarine classes.
|
Books dealing with this subject include:
|