Armor

Tiger I: Germany's Fearsome WW2 Heavy Tank

Panzerkampfwagen VI Ausf. H/E · SdKfz 181 · Deployed 1942–1945

The Panzerkampfwagen VI Ausf. H/E Tiger I (Mark VI-H/E, Panzer VI-H/E, Pzkw VI-H/E, SdKfz 181-H/E, Sonderkraftfahrzeug 181-H/E) was a German heavy tank of World War II. This combat vehicle was first used in late 1942. It was the heaviest German production tank to date at 55–57 tons. It had a crew of five, and was armed with the legendary 88 mm KwK 36 cannon. The Tiger I was in use until the German surrender and was given its nickname by Ferdinand Porsche. This design eventually resulted in the Pzkw VI Königstiger, known as the Tiger II or King Tiger.

Technical Specifications

Weight 55–57 tonnes
Crew 5
Main Gun 88 mm KwK 36 L/56
Front Armor (hull) 100 mm
Turret Armor 80 mm
Engine Maybach HL 230 P45 (700 hp)
Initial Engine Maybach HL 210 (590 hp, 21L)
Suspension Triple interleaving road wheels
Total Built 1,355 (Aug 1942 – Aug 1944)
Fording Depth 4.0 m (first 495 units)

The Legendary 88 mm Gun

The Tiger I's 88 mm KwK 36 L/56 cannon was the defining weapon of the vehicle and one of the most feared tank guns of World War II. Derived from the renowned 8.8 cm Flak anti-aircraft gun, it combined exceptional muzzle velocity with devastating penetrating power. The 88 mm was capable of destroying a T-34 or Churchill IV at ranges up to 1,300 m. Conversely, these opposing tank types were unable to penetrate the armor of the Tiger I if firing from a range greater than 500 m.

Of perhaps some controversy is the argument that a Tiger I was capable of destroying an M4 Sherman at ranges in excess of 3,500 m; however, Shermans were not capable of penetrating the Tiger's fore and side armor, even at point-blank range. This enormous range advantage made the Tiger I a terrifying opponent on open ground.

Design

The Tiger was possibly the most sophisticated and best engineered tank of its time. The internal layout was typical of German tanks, dividing the hull into four parts — two front compartments for the driver and the radio-operator, a central fighting compartment, and the rear engine compartment. The tank had front armor up to 100 mm thick, with 80 mm on the turret. To simplify production, flat sections were used where possible with interlocking and welding rather than bolted joins.

It was the first German tank to have triple interleaving road wheels, which improved load distribution. The steel and rubber wheels were mounted on eight independent torsion bar axles, which gave a relatively soft and stable ride for such a large vehicle. The complex system had a number of drawbacks — a major one was that the wheels could become packed with mud or snow which could then freeze. The Russians discovered this and on occasion timed their attacks to early morning to maximise the possibility that the Tigers would be immobilised.

This tank also featured a hydraulically-controlled pre-selector gearbox and a semi-automatic transmission. The weight of the tank also meant a new steering system; rather than the clutch-and-brake designs of lighter vehicles, a variation on the British Merritt-Brown system was used. The initial engine was a 590 hp 21-litre Maybach petrol design; found to be rather underpowered, this was soon upgraded to a 24-litre model.

The original design could submerge to 4.0 m and remain there for 2.5 hours; however, this being an expensive feature, it was abandoned after the first 495 tanks had been produced.

Design History

Development of the Tiger had begun in Spring 1937 by Henschel. After various sidetracks, Henschel and three other companies (Porsche, MAN, and Daimler-Benz) submitted designs in 1941 for a 35-ton tank with a 75 mm main gun. The emergence of the Russian T-34 rendered these designs obsolete. According to Henschel designer Erwin Adlers:

“There was great consternation when it was discovered that the Soviet tanks were superior to anything available to the Wehrmacht.”

An immediate weight increase to 45 tons and an increase in gun calibre to 88 mm was ordered. The due date for new prototypes was set for April 20, 1942 — Adolf Hitler's birthday. With the limited design time, the existing lighter designs were used as the basis for the new tank. Unlike the Panther tank, the design did not incorporate any of the innovations of the T-34. Porsche and Henschel submitted prototype designs and they were compared at Rastenburg before Hitler. The Henschel design was accepted and production began in August 1942 of the Panzerkampfwagen VI Ausf E. At the same time, ninety of the Porsche version were also ordered; not used, the chassis were converted into the Panzerjäger Tiger.

Production History

Production of the Mark VI began in August 1942 and 1,355 such tanks were built by August 1944, at which point production ceased. Production started at a rate of 25 per month and peaked in April 1944 at 104 per month. Generally speaking, it took about twice as long to build a PzKpfw VI in comparison to the other German tanks of the period. When the improved Tiger II Ausf B began production in January 1944, the Tiger I was soon phased out.

Combat History

Despite the Tiger's fearsome reputation, the first uses of the tank were unimpressive. Under pressure from Hitler, the tank was put into action months earlier than planned and many early models proved to be mechanically fragile. In its first action on September 23, 1942 near Leningrad in unsuitable marshy terrain, Russian anti-tank gunners found it no threat. It demonstrated the disadvantages of very large tanks in speed, manoeuvrability, and radius of action.

One particular weakness was a slow turret traverse due to its great weight. An accepted Allied tactic was to engage the Tiger in groups — one attracting the attention of the Tiger crew while the others attacked the sides or rear of the vehicle.

In May 1943, a Tiger of the Afrika Korps was captured and sent to England for inspection. However, the western Allies did little to prepare for combat against the German tank despite their assessment that the Tiger was superior to their own tanks. It is believed this decision was based on the doctrine of the United States Army, which did not place emphasis on tank vs. tank combat.

The Russian Response

In response to the Tiger I, Russia modified the T-34 by upgrading to an 85 mm gun. They also mounted 122 mm and 152 mm howitzers on the KV-1, which resulted in the SU-122 and SU-152 self-propelled guns. Eventually the Russians would produce fully new tank designs, the JS-I (100 mm) and the JS-II (122 mm).

Quotes

“All you saw in your imagination was the muzzle of an 88 behind each leaf.”
— British Tank Commander Andrew Wilson
“The Tiger was the best tank and was particularly successful in heavy fighting.”
— German Tank Commander Oberst Franz Böke

Text is available under the terms of the GNU Free Documentation License.