SMS Juan de Austria

1864 illustration of Don Juan d'Austria
History
Austrian Empire
Name:	Don Juan d'Austria
Builder:	Stabilimento Tecnico Triestino
Laid down:	October 1861
Launched:	26 July 1862
Commissioned:	1863
General characteristics
Class and type:	Kaiser Max class
Displacement:	3,588 t (3,531 long tons; 3,955 short tons)
Length:	70.78 meters (232 ft 3 in) pp
Beam:	10 m (32 ft 10 in)
Draft:	6.32 m (20 ft 9 in)
Installed power:	1,926 indicated horsepower (1,436 kW)
Propulsion:	1 single-expansion steam engine
Speed:	11.4 knots (21.1 km/h; 13.1 mph)
Range:	1,200 nautical miles (2,200 km; 1,400 mi) at 10 knots (19 km/h; 12 mph)
Crew:	386
Armament:	16 × 48-pounder guns 15 × 24-pounder guns 1 × 12-pounder gun 1 × 6-pounder gun
Armor:	Belt: 110 mm (4.3 in)

SMS Don Juan d'Austria was the third member of the Kaiser Max class built for the Austrian Navy in the 1860s. Her keel was laid in October 1861 at the Stabilimento Tecnico Triestino shipyard; she was launched in July 1862, and was completed in 1863. She carried her main battery—composed of sixteen 48-pounder guns and fifteen 24-pounders—in a traditional broadside arrangement, protected by an armored belt that was 110 mm (4.3 in) thick.

Don Juan d'Austria saw action at the Battle of Lissa in July 1866. There she was heavily engaged in the center of the melee; she traded broadsides with the Italian ironclad Re di Portogallo and was hit three times by the turret ship Affondatore, though she received little damage. After the war, Don Juan d'Austria was modernized slightly in 1867 to correct her poor seakeeping and improve her armament, but she was nevertheless rapidly outpaced by naval developments in the 1860s and 1870s. Obsolescent by 1873, Don Juan d'Austria was officially "rebuilt", though in actuality she was broken up for scrap, with only her armor plate, parts of her machinery, and other miscellaneous parts being reused in the new Don Juan d'Austria.

Don Juan d'Austria was 70.78 meters (232 ft 3 in) long between perpendiculars; she had a beam of 10 m (32 ft 10 in) and an average draft of 6.32 m (20 ft 9 in). She displaced 3,588 metric tons (3,531 long tons; 3,955 short tons). She had a crew of 386. Her propulsion system consisted of one single-expansion steam engine that drove a single screw propeller. The number and type of her coal-fired boilers have not survived. Her engine produced a top speed of 11 knots (20 km/h; 13 mph) from 1,900 indicated horsepower (1,400 kW). She could steam for about 1,200 nautical miles (2,200 km; 1,400 mi) at a speed of 10 knots (19 km/h; 12 mph).