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Class O 9 |
Boats in this Class O 9, O 10, O 11 |
O 9, O 10 and O 11, the complete O 9 class. Probably at the Es en van Ommeren dock in Amsterdam, April 1936. (Photo: © N.V. Ned. Fotobureau / Collection Erny van Wijk) |
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| Boat | O 9 | O 10 | O 11 |
| Pennant # | P 9, P09 | P 10 | |
| Yard # | 177 | 169 | 297 |
| Type | Patrol submarine for the Dutch home waters | ||
| Class name | O 9. Named after first of class. "O" stands for "Onderzeeboot" (submarine) | ||
| Ordered | 30 Aug 1921 | 9 Aug 1921 | 30 Aug 1921 |
| Laid down | 1 Dec 1923 or 23 Sep 1922 |
24 Dec 1923 | 24 Dec 1922 |
| Launched | 7 Apr 1925 | 30 July 1925 | 19 Mar 1925 |
| Commissioned | 18 Jan 1926 | 1 Sep 1926 | Dutch navy: 18 Jan 1926 German navy: ? |
| Decommissioned | 1 Dec 1944 | 11 Oct 1944 | Dutch navy: 14 May 1940 (scuttled) German navy: Sep 1944 |
| Fate | Oct 1946 Sold f brake up |
Oct 1946 Sold f brake up |
10 Dec 1947 Raised ?? ??? 194? Sold f scrap |
| Design | Dutch. Double-hull type. By J.J. van der Struyff, B.Sc. | ||
| Shipyard | K.M. De Schelde, Vlissingen |
Nederlandse Dok en, Scheepsbouw Mij. |
Fijenoord, Schiedam |
| Le x Be x Dr | 54.66 m x 5.70 m x 3.53 m | ||
| Displacement Stnd/Surf/Subm |
483 t / 526 t / 656 t | ||
| Engines | Two 6-cylinder Sulzer diesel engines, 2-stroke, 2x450 apk | ||
| Main motor | 2 main motors + generators, 2 x 250 apk | ||
| Batteries | 120 cells, 4350 Ah during 3 hours | ||
| Propellers | 2 First twin screw O boat. |
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| Speed surf/subm | 12 kts / 8 kts | ||
| Range surf/subm | 3500 nm at 8 kts / 25 nm at 8 kts | ||
| Diving depth | 60 m | ||
| Complement | 29 | ||
| Torpedo tubes | 2 x 21" bow, 2 x 17.7" bow, 1 x 17.7" stern | ||
| Armament | 10 torpedoes, incl. 5 reloads. Type I 53 and III 45 |
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| 1 x 8.8 cm, 1 x 12.7 mm mg
(possibly Browning, but the Navy did not buy these until the late 1920's) |
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| Guns | |||
| Periscopes | 2 hydraulically operated, stroke 4.25 m, diameter 150 mm | ||
| Notes | - Double-hull type, from know on all
future subs will be double-hull types. - Kingstons grouped in the control room. - Note the differently sized torpedo tubes of 18" and 21". |
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