D-7 type destroyers - a type of divisional destroyers of the German imperial fleet, built in 1890 - 1891 and served until the First World War . In total, 2 destroyers of this type were built. In 1914, the destroyers were converted into coastal defense ships [2] .
| D-7 destroyers | |
|---|---|
 D 7 | |
| Project | |
| A country |
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| Manufacturers |
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| Operators |
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| Years of construction | 1890 |
| Main characteristics | |
| Displacement | 320 t (design) 410 t (full load) |
| Length | 59.72 m (largest) |
| Width | 7.4 m (largest) |
| Draft | 3.4 m (in service) |
| Reservation | missing |
| Engines | 1 triple expansion steam three-cylinder machine , 2 locomotive boilers |
| Power | 3600 l. with. |
| Mover | screw ∅ 2.80 m [1] |
| Speed | 22.5 knots |
| Sailing range | 1,420 miles at 18 knots 2590 miles at 14 knots |
| Crew | 39 people (including 7 officers) |
| Armament | |
| Artillery | 6x5 37 mm Hotchkiss guns (3x1 50 mm guns since 1893) |
| Mine torpedo armament | 3x1 450 mm TA |
Content
Design
The destroyer hulls were built of German steel and were divided by ten impenetrable bulkheads , reaching the upper deck, into 11 compartments. For- and aftershafts are steel, forged from one piece, the first goes from the upper deck to the 104th, and the second to the 16th frames . The outer skin of the body is steel. Its thickness in the middle of the hull in the upper belt was 0.75 cm, to the bow and stern it decreased to 0.4 cm. The deck lining was steel [3] .
Two helmsmen, at the achter and the forshteyn, both balancer are forged from one piece of steel. The front steering wheel is placed in a waterproof well and with the help of a special device it can very conveniently be lowered and raised from the deck. Ground wires are wire-driven; the rudders act either with the help of a steam drive delivered in the front tower or with a hand wheel in the rear tower; both wheels can act simultaneously or separately. On the upper deck are two elephant towers. Two waterproof doors are made in the front tower, arranged in such a way that mines can be entered through them into the room designated for them. Both towers serve as entrance felling, the bow - in the team's living quarters, and the aft - in the officers' quarters and a place for helmsmen, for which the corresponding number of portholes is cut through the walls of the tower. The lids of the towers are easily raised and lowered with special screws.
The destroyer’s drainage equipment consists of ejectors, supplied one at a time: in the bow of the team, in the officer’s room and in the provisions cellar. Each of them is capable of pumping 430 feet of water. The steam and centrifugal pumps in the engine room are also adapted to pump water from the hold. In the impermeable bulkheads of the bow and stern and between the engine rooms and cabins there are large clinkets operating from the upper deck. In addition to steam, there are two hoses on each destroyer [4] .
Power plant
On ships of the type, as a power plant, one three - cylinder steam engine (triple expansion) with a capacity of 3600 liters was installed . with. and 2 locomotive boilers with a pressure of 13 atmospheres . The maximum fuel reserves on destroyers were 105 tons.
Armament
The destroyers were armed with 6x5 37 mm Hotchkiss guns. In 1893, the Hotchkiss revolving guns were replaced by 3 50 mm guns. Torpedo armament destroyers consisted of 3x1 450-mm torpedo tubes .
Notes
- ↑ Gröner, Erich. Die deutschen Kriegsschiffe 1815-1945 Band 2: Torpedoboote, Zerstorer, Scyntllboote. - Bernard & Graefe, 1983 .-- S. 41.
- ↑ Trubitsyn S. B. Squadron destroyers and destroyers of Germany (1871-1918). - SPb. , 2000 .-- S. 30.
- ↑ Trubitsyn S. B. Squadron destroyers and destroyers of Germany (1871-1918). - SPb. , 2000 .-- S. 27.
- ↑ From the magazine "Marine Collection" No. 3 for 1892)
Literature
- Trubitsyn S. B. Squadron destroyers and destroyers of Germany (1871-1918). - SPb. , 2000.