1908 To 1912, Second Novelle
German expenditure on ships was steadily rising. In 1907, 290 million marks was spent on the fleet, rising to 347 million marks or 24 percent of the national budget in 1908, with a predicted budget deficit of 500 million marks. By the outbreak of World War I, one billion marks had been added to Germany's national debt because of naval expenditures. While each German ship was more expensive than the last, the British managed to reduce the cost of the succeeding generations of Bellerophon-class and St. Vincent-class battleships. Successive British battle-cruisers were more expensive, but less so than their German equivalents. Overall, German ships were some 30% more expensive than the British. This all contributed to growing opposition in the Reichstag to any further expansion, particularly when it was clear that Britain intended to match and exceed any German expansion program. In the fleet itself, complaints were beginning to be made in 1908 about underfunding and shortages of crews for the new ships. The State Secretary of the Treasury, Hermann von Stengel, resigned because he could see no way to resolve the budget deficit.
The elections of 1907 had returned a Reichstag more favourable to military exploits, following the refusal of the previous parliament to grant funds to suppress uprisings in colonies in South West Africa. Despite the difficulties, Tirpitz persuaded the Reichstag to pass a further Novelle in March 1908. This reduced the service life for ships from 25 years to 20 years, allowing for faster modernisation, and increased the building rate to four capital ships per year. Tirpitz' target was a fleet of 16 battleships and 5 battle-cruisers by 1914, and 38 battleships and 20 battle-cruisers by 1920. There were also to be 38 light cruisers, and 144 torpedo boats. The bill contained a restriction, that building would fall to two ships per year in 1912, but Tirpitz was confident of changing this at a later date. He anticipated that German industry, now heavily involved in shipbuilding, would back a campaign to maintain a higher construction rate.
Four battleships of the Helgoland-class were laid down in 1909–1910, with displacements of 22,800 tons, twelve 30.5 cm (12.0 in) guns in 6 turrets, reciprocating engines generating a maximum speed of 21 knots, and a price tag of 46 million marks. Again, the turret configuration was dictated by the need to use the centre of the ship for machinery, despite the disadvantage of the turret layout. The ships were now equipped with 50 cm (20 in) torpedoes.
The Kaiser-class battleships built between 1909 and 1913 introduced a change in design as turbine engines were finally approved. The ships had ten 30.5 cm guns, losing two of the centre side turrets but gaining an additional turret astern on the centre line. As with the Von der Tann design, which was drawn up at a similar time, all guns could be fired either side in broadsides, meaning more guns could come to bear than with the Helgoland design, despite having fewer in total. Five ships were constructed rather than the usual four, one to act as a fleet flagship. One ship, the SMS Prinzregent Luitpold, was equipped with only two turbines rather than three, with the intention of having an additional diesel engine for cruising, but the Howaldt engine could not be developed in time. Luitpold had a top speed of 20 knots as a result, compared to 22 knots for the other ships. The ships were larger than the preceding class at 24,700 tons, but cheaper at 45 million marks. They formed part of the third squadron of the High Seas Fleet as it was constituted for World War I.
Between 1908 and 1912 two Moltke-class battlecruisers were constructed, adding an extra turret on the centre line astern, raised above the aft turret, but still using 28 cm guns. SMS Moltke became part of the High Seas Fleet, but SMS Goeben became part of the Mediterranean squadron and spent World War I as part of the Ottoman navy. The ships cost 42.6 and 41.6 million marks, with maximum speed of 28 knots. Seydlitz was constructed as a slightly enlarged version of the Moltke design, reaching a maximum speed of 29 knots. All cruisers were equipped with turbine engines from 1908 onwards. Between 1910 and 1912 four Magdeburg-class light cruisers were constructed of 4,600 tons, at around 7.4 million marks each. The ships were fitted with oil burners to improve the effectiveness of their main coal fuelling. These were followed by the similar but slightly enlarged and marginally faster Karlsruhe-class and Graudenz-class classes.
In 1907 a naval artillery school was established at Sonderburg (north of Kiel). This aimed to address the difficulties with the new generation of guns, which with potentially greater range required aiming devices capable of directing them at targets at those extreme ranges. By 1914, experiments were being conducted with guns in increasing sizes up to 51 cm (20 in). Capital ships were fitted with spotting tops high up on masts with range finding equipment, while ship design was altered to place turrets on the centre line of the ship for improved accuracy.
The four König-class battleships were commenced between October 1911 and May 1912 and entered service in 1914 at a cost of 45 million marks, forming the other part of the Third Squadron of the High Seas Fleet. They were 28,500 tons, with a maximum speed of 21 knots from three triple stage Brown-Boverie-Parsons turbines. Main armament was five double turrets housing twin 30.5 cm guns, arranged with two turrets fore and aft and one in the centre of the ship. The second turret either end was raised higher than the outer so that it could fire over the top (superfiring). As with Prinzregent Luitpold, the ships were originally intended to have one diesel engine for cruising, but these were never developed and turbines were fitted instead. The ships were equipped with torpedo nets, trailed along the hull intended to stop torpedoes, but these reduced maximum speed to an impractical 8 knots and were later removed.
Construction began in 1910 of the first submarine powered by twin diesel engines. U-19 was twice the size of the first German submarine, had five times the range at 7,600 nautical miles (14,100 km; 8,700 mi) cruising at 8 knots, or 15 knots maximum. There were now two bow and two stern torpedo tubes, with six torpedoes carried. The ships were designed to operate at a depth of 50 metres (160 ft), though could go to 80 metres (260 ft).
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