Sumatra Protected Cruiser: Design and Technical Specifications
The Sumatra was a protected cruiser designed with a focus on agility and firepower, drawing inspiration from the naval architecture of the late 19th century. Its design was heavily influenced by the Esmeralda concept—a protected cruiser built in 1883 by the Armstrong/Elswick shipyards for Chile. In terms of scale and dimensions, the Sumatra most closely resembled the Chinese protected cruiser Chi Yuan, which was constructed around the same period as the Esmeralda.
Key Facts
- Design Influence: Based on the Esmeralda concept and similar in size to the Chi Yuan.
- Top Speed: Capable of reaching 17 knots (31 km/h).
- Armor: Featured a 1.5-inch (38 mm) thick armored deck.
- Main Armament: Equipped with Krupp guns of 21 cm and 15 cm calibers.
- Crew Capacity: Operated by 181 officers and enlisted men.
Physical Dimensions and Propulsion
The Sumatra was engineered for efficiency and stability. It measured 229 feet 7 inches (69.98 m) in overall length with a beam (the widest part of the ship) of 37 feet 1 inch (11.30 m). The hull had a deep draft of 15 feet 4 inches (4.67 m), and the vessel had a total displacement of 1,693 long tons (1,720 t).
Powering the vessel was a steam engine rated at 2,350 indicated horsepower (1,750 kW). This propulsion system allowed the Sumatra to maintain a speed of 17 knots (31 km/h; 20 mph). To sustain these operations, the ship's coal capacity ranged between 207 and 276 long tons (210–280 t).
[ไม่มีภาพประกอบ]Armament and Defensive Systems
The Sumatra's offensive capabilities were centered around high-caliber Krupp artillery. Forward of the superstructure, the ship mounted a single 35-caliber 21-centimeter (8.3 in) A. No. 2 gun. Aft, it carried a 35-caliber 15-centimeter (5.9 in) A. No. 2 gun. Both of these primary weapons were protected by gun shields to safeguard the crew.
For lateral engagement, the hull featured sponsons—projections from the side of the ship—each housing a single 12-centimeter (4.7 in) L.A. gun. Additionally, the ship was equipped with a pair of 356-millimeter (14 in) torpedo tubes for underwater attacks.
To defend against the threat of torpedo boats, the Sumatra utilized a suite of smaller, rapid-fire weapons. This included four single 3.7-centimeter (1.5 in) Hotchkiss guns, two 3.7 cm Hotchkiss revolver guns, and one 7.5-centimeter (3.0 in) A gun.
Technical Specifications Summary
| Feature | Specification |
|---|---|
| Length | 229 ft 7 in (69.98 m) |
| Beam | 37 ft 1 in (11.30 m) |
| Draft | 15 ft 4 in (4.67 m) |
| Displacement | 1,693 long tons (1,720 t) |
| Engine Power | 2,350 ihp (1,750 kW) |
| Max Speed | 17 knots (31 km/h) |
| Armor Deck | 1.5 inches (38 mm) |
| Crew | 181 personnel |
Frequently Asked Questions
What was the design inspiration for the Sumatra?
The Sumatra was designed as a smaller version of the Esmeralda concept, a protected cruiser built for Chile by the Armstrong/Elswick shipyards in 1883.
What was the primary armament of the ship?
The primary armament consisted of a 21-centimeter Krupp gun located forward and a 15-centimeter Krupp gun located aft, both of which featured protective gun shields.
How did the Sumatra defend itself against torpedo boats?
The ship used a combination of four 3.7 cm Hotchkiss guns, two 3.7 cm Hotchkiss revolver guns, and one 7.5 cm A gun for anti-torpedo boat defense.
What was the maximum speed and power of the vessel?
The Sumatra had a steam engine rated at 2,350 indicated horsepower, which enabled it to reach a top speed of 17 knots.
How much armor did the Sumatra have?
The ship was protected by an armored deck with a thickness of 1.5 inches (38 mm).