FASCIST FLATTOPS
Somewhere 55 kilometres off the coast of Poland, beneath the dark, cold waters of the Baltic Sea, lies the colossal ghost of a haughty dream of world dominance. While fish sluggishly fin in and out of her silent spaces, silt settles like the dust of history over her rusting shoulders. It has been nearly seventy years since she last saw the light of day. And what an awful day that was.
She is Flugzeugträger (Aircraft Carrier) Graf Zeppelin, one of five aircraft carriers commenced by the navies of the two European fascist powers of the Second World War—Germany and Italy. Of the five attempted carriers, Graf Zeppelin came the closest to being operational. In the end, her only military accomplishment was a benefit to the Allies—keeping 30,000 tons of much needed steel from the U-boat builders of the Third Reich.
The concept of the aircraft carrier, while not new when the war began in 1939, could certainly be said to be untested. Carriers were a military weapon system about to prove their place at the top of the food chain, but for the undecided and the late-to-the-game navies of Italy and Germany, there was still plenty of heated debate and animosity within these services and without. The great carrier powers of the Second World War were three—the United States Navy, the Imperial Japanese Navy and the Royal Navy. They all had been in the game for a long time and had built relatively deep experience with technologies for deploying and operating carriers throughout their empires. In fact, it was the defence and extension of these very empires, stretched across massive expanses of open ocean from Scapa Flow to the Falklands, from San Diego to the Philippines and from Sakhalin to Sarawak, which gave impetus to the development of carriers and their supporting task forces. Carriers would be involved in the opening salvos of both the Pacific and the European wars—with HMS Courageous being torpedoed just a couple of weeks after the declaration of war, and Japanese carriers delivering a crippling but not fatal blow to the Americans at Pearl Harbor. Carriers would be in the thick of things in the closing weeks of the war in the Pacific, and by then had supplanted the heavy battleship as the most important weapon in any navy’s arsenal.
As mentioned, Germany came into the aircraft carrier game later than other countries with designs on the world. This was largely because her militaries (Kriegsmarine and Luftwaffe) were prevented from doing so by the Treaty of Versailles—at least on paper. Of course, when the Nazis took control of the government, they largely thumbed their noses at the treaty that Germany had been forced to sign in 1919. Re-armament or “Aufrüstung” was conducted both under the noses of and in the face of the Allies.
In the summer of 1935, a new Anglo-German Naval Treaty gave Germany permission to construct new capital ships including aircraft carriers up to 38,500 tons displacement. It didn’t take long before Adolf Hitler announced plans to construct the first of four planned carriers – for the Kriegsmarine had been developing plans since 1934. In secret, a delegation of Kriegsmarine and Luftwaffe officers visited Japan to obtain technology. There, they visited the recently completed IJN Akagi, one of the Japanese carriers that would launch aircraft in the attack on Pearl Harbor six years later. Along with the German lack of experience in the carrier business, came an even greater shortfall in appropriate aircraft for carrier operations. Both the Germans and the Italians chose to select aircraft from their air forces and modify them for carrier duty – a process that would prove, for the most part, unsatisfactory.
By 1937, plans had been largely completed, enough at least to lay down the keel on Slipway One at Kiel’s Deutsche Werke for an 861-foot-long fleet carrier called Flugzeugträger “A”. Work proceeded at full bore until the end of 1938 when, on 8 December, she was christened KMS Graf Zeppelin by Countess Hella von Brandenstein-Zeppelin, the daughter of the ship’s namesake—Count Ferdinand Zeppelin. Graf Zeppelin was then cut loose to slide down the slipway and into a launch basin at Deutsche Werke, Kiel. She was then attended by numerous tugs who shepherded her to a berth on a dock where she would be fitted up and readied for her shakedown cruise. Weeks after her launch, another carrier, known simply as Flugzeugträger “B”, was laid down and work commenced. The ship would be the second of the Graf Zeppelin class of carriers, and it is widely believed that at her christening she would carry the name KMS Peter Strasser, named after the First World War commander of Germany’s airships.
In September of 1939, Graf Zeppelin was, by all accounts, 85% complete when war broke out. With focus on other military events taking place, on the building of U-boats and the finishing of other capital ships, progress slowed until, in July of 1940, work was ordered stopped. Her life from this point forward would be a series of movements east and west across the Baltic coast of Germany and Poland—attempts to keep her out of bombing range mixed with rejuvenated periods of work to complete her. She would languish at wharfs and backwater anchorages from Gotenhafen to Kiel to Stettin until 1945, when the imminent threat of the advancing Soviet Red Army pushed her skeleton crew to scuttle her in shallow water, a rusting mountain of 30,000 tons of steel sitting on her keel at a bend in the brackish Parnitz River.
Like almost all capital ships of the Kriegsmarine in the Second World War, her career, had she become operational, would have been short and not worth the effort. In the war, German battleships and heavy cruisers were either hounded to death by the Royal Navy surface fleet or forced to hide deep in Norwegian fjords with little to show for the millions upon millions of reichsmarks spent on their construction. Graf Spee was scuttled in the estuary of the River Platte. Bismarck was sunk in the North Atlantic, Tirpitz spent the war hiding. Gniesenau was scuttled. Prinz Eugen was a gunnery platform used in support of ground troops, and in the end, was towed to Bikini Atoll in the Pacific where she survived two nuclear bomb tests. When the most celebrated engagement of Kriegsmarine surface ships was the “Channel Dash”, the escape from Brest to Brunsbüttel Locks at the mouth of the Kiel Canal via the English Channel, you know your plans for naval domination are hopeless. The fate of Graf Zeppelin would have been no different. And the Germans knew it.
Despite a later attempt to complete Graf Zeppelin, she would end her war service a rusting hulk which not only kept 30,000 tons of steel from Admiral Dönitz’s submarine building program, but which eventually fell into the hands of the Red Army. The two other attempts to build a carrier for the Kriegsmarine also failed, though less spectacularly. Flugzeugträger “B” (Peter Strasser) was scrapped where it sat on the slipway, less than 50% complete. Another attempt, a conversion of the brand new heavy cruiser KMS Seydlitz to a carrier, also failed. She had her superstructure removed at great cost and her guns deployed to the Atlantic Wall, and that being done, spent the rest of the war as did Graf Zeppelin—a white elephant and somewhat of an embarrassment.
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An informative and superbly written article appearing on the web page of Innerspace Explorers, the dive group that first visited the wreck of Graf Zeppelin, offers this explanation of the overly-complicated launch system to be used on the carrier:
“Graf Zeppelin had three electrically-operated elevators positioned along the flight deck’s center-line: one near the bow, abreast the forward end of the island; one amidships; and one aft. They were octagonal in shape, measuring 13 m (43 ft) x 14 m (46 ft), and were designed to transfer aircraft weighing up to 5.5 tons between decks.
Two Deutsche Werke compressed air-driven catapults were installed at the forward end of the flight deck for power-assisted launches. They were 23 m (75 ft) long and designed to accelerate a 2,500 kg (5,500 lb) fighter to a speed of approximately 140 km/h (87 mph) and a 5,000 kg (11,000 lb) bomber to 130 km/h (81 mph).
A dual set of rails led back from the catapults to the forward and midship elevators. In the hangars, aircraft would have been hoisted by crane onto collapsible launch trolleys. The aircraft/trolley combination would then have been lifted to flight deck level on the elevator and trundled forward to the catapult start points. As each plane lifted off, its launch trolley would have been caught in a metal “basket” at the end of the catapult track, lowered to the forecastle on “B” deck and rolled back into the upper hangar for re-use via a secondary set of rails.
The catapults could theoretically launch nine aircraft each at a rate of one every thirty seconds before exhausting their air reservoirs. It would then have taken 50 minutes to recharge the reservoirs. When not in use, the catapult tracks could be covered with sheet metal fairings to protect them from harsh weather.
It was intended from the outset that all of Graf Zeppelin’s aircraft would normally launch via catapult. Rolling take-offs would be performed only in an emergency or if the catapults were inoperable due to battle damage or mechanical failure. Whether this practice would have been strictly adhered to or later modified, based on actual air trials and combat experience, is open to question, especially given the limited capacity of the air reservoirs and the long recharging times necessary between launches. One advantage of the system, however, was that it would have allowed Graf Zeppelin to launch and land aircraft simultaneously.”
Innerspace Explorers also explain the flight testing going on simultaneously with the construction: “In 1937, with Graf Zeppelin’s launch scheduled for the end of the following year, the Luftwaffe’s experimental test facility at Travemünde on the Baltic coast began a lengthy program of testing prototype carrier aircraft. This included performing simulated carrier landings and take-offs and training future carrier pilots.
The runway was painted with a contoured outline of Graf Zeppelin’s flight deck and simulated deck landings were then conducted over an arresting cable strung width-wise across the airstrip. The cable was attached to an electromechanical braking device manufactured by DEMAG. Testing began in March 1938 using the Heinkel He 50, Arado Ar 195 and Ar 197. Later, a stronger braking winch was supplied by Atlas-Werke of Bremen and this allowed heavier aircraft, such as the Fieseler Fi 167 and Junkers Ju 87, to be tested. After some initial problems, Luftwaffe pilots performed 1,500 successful braked landings out of 1,800 attempted.
Launches were practiced using a 20 m (66 ft) long barge-mounted pneumatic catapult, moored in the Trave River estuary. The Heinkel-designed catapult, built by Deutsche Werke Kiel (DWK), could accelerate aircraft to speeds of 145 km/h (90 mph) depending on wind conditions. Test planes were first hoisted by crane onto collapsible launch carriages in the same manner as intended on Graf Zeppelin.
The catapult test program began in April 1940 and, by early May, thirty-six launches had been conducted, all carefully documented and filmed for later study: seventeen by Arado Ar 197s, fifteen by modified Junkers Ju 87Bs and four using a modified Messerschmitt Bf 109D. Further testing followed and by June Luftwaffe officials were fully satisfied with the catapult system’s performance.”
There are two images of Graf Zeppelin, taken during the last two years of her Kriegsmarine life, that were taken from an orbiting biplane. They show an almost post-apocalyptic scene of Graf Zeppelin sitting at a bend in the Parnitz River. There is not a raft, tender or lighter to be seen. There’s not even a road or rutted trail to her mooring. She sits massively and hauntingly silent, as if humans have vanished from the face of the earth.
After two years languishing at her river bend mooring, the Red Army was close to overrunning Stettin. German demolition crews detonated depth charges and opened her sea cocks. She settled just a few metres onto the muddy bottom of the river, awaiting the arrival of the Russians.
By August of 1945, Russian marine experts finished an assessment of the damage, made appropriate repairs, pumped out the flooded spaces and refloated her. She was towed to Swinemünde and shortly thereafter taken on strength with the Soviet navy. The Russians briefly considered finishing her and employing her as an aircraft carrier, but instead she was reclassified in 1947 as an “experimental platform” and renamed PB-101 (Floating Base 101). In mid-August of 1947, she was towed from her mooring at Swinemünde to the open Baltic Sea. A number of vessels escorted her to her gravesite, where she would undergo explosive and aerial bombing tests. An attempt to anchor her to the bottom failed when her chain broke. Now it was imperative that she be dispatched before she drifted into shallower water.
A series of placed explosions were set off inside her, followed by both naval gunnery and aerial bomb attempts to sink her. Still she floated and continued to drift as weather worsened. The Soviet Navy then used destroyer-fired torpedoes to sink her, the first of which passed beneath her without detonating. Two more torpedoes fired at her starboard side did the trick and Graf Zeppelin listed to starboard and, down at the bow, slipped into eternity, one of the last vestiges of the dream turned into a nightmare.
Aquila and Sparviero
The Regia Marina, the navy of Fascist Italy also made two attempts to get into the carrier game—deciding for expediency to convert two identical ocean liners into carriers. The first, Aquila (Eagle), was a carrier of roughly the same size as Graf Zeppelin, utilizing the same catapult cradle launch system as the Germans were going to employ. Work on removing the superstructure from the liner Roma and building a fleet carrier on her hull began considerably later than work on the Graf Zeppelin—late 1941. Work continued over the next two years, and she was nearly completed when Italy signed an armistice in September 1943. Work was halted at this point and she joined Graf Zeppelin as an expensive white elephant. She was damaged in June of 1944 during an Allied bombing raid on Genoa harbour. Fearing the Germans might sink her to block the entrance to the harbour, Italian demolition divers scuttled her at her moorings. Aquila was raised after the war and towed to La Spezia in 1949, where for a brief period the Italians considered finishing her as a carrier or perhaps another warship. In the end, she was scrapped.