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Several
designs for cross-country armoured “landships” - both tracked
and wheeled - were submitted to the German High Command both before
the war and right up to the time the first British tanks went into
action on 15 September 1916. The moral effect of this attack was out
of all proportion to its tactical success, which was small, and led
German Army commanders on the Western Front to press for a German
equivalent. The High Command had already had some inkling of what
was going on in England but now took action for the first time to
promote the development of a German landship by appointing a
committee composed of engineering experts from leading heavy
engineering and automotive firms to study this question. The
committee was known for security purposes as “Allegemeine
Kriegsdepartement 7, Abteilung Verkehrswesen” or “General War
Department 7, Traffic Section”.
A
general specification was laid down and as a first step towards
design the committee obtained a Holt tractor from Austria: this
American-designed caterpillar tractor (built under licence in
Budapest) was at that time the only suitable tracklaying vehicle
available to Germany for experiment. It is interesting to note here
that the Holt had also inspired Colonel Swinton's landship proposals
put before the War Office in Britain and also formed the basis for
the French heavy tanks.
After
trials of the Holt tractor, a lengthened version of the chassis was
designed by Josef Vollmer, powered by two Daimler engines of 100 h.p.
each (the original proposals for one 80-100-h.p. engine being
recognized as inadequate) and, fitted with a wooden mockup of an
armoured hull, was first demonstrated in the Spring of 1917. There
were some changes in the original requirements laid down for armour
and armament because the protection was intended to be 30mm.
thickness overall, but this was later altered, to reduce total
weight, to 30mm at the front only, the remainder varying between 15
mm. and 20 mm. For the main armament, different guns were tested and
the choice eventually fell on the 57mm Nordenfelt, a weapon taken
from the Belgians, of which a small supply was available. However,
only one gun was fitted (at the front) instead of the original
intention of having a shell-firing weapon at both ends. In addition
six water-cooled machine-guns (MG08) were carried - two on each side
and two at the rear.
The
design was accepted and the tank (known as A7V from a contraction of
the design committee's title) was put into series production, the
contracts having already been awarded. One hundred vehicles were
ordered, of which only twenty were finally completed as tanks, the
first of these being ready in October 1917.
The
first action in which the A7Vs took part was at St Quentin on 21
March 1918; the first tank versus tank action on 24 April. This
encounter showed one fundamental advantage of the German tanks in
that all were equipped with a gun, the British Tanks Mark IV, Female
version, equipped with machine-guns only, being helpless against the
57mm gun of the A7V. The central placing of the A7V's main gun was
also a better feature than the sponson mountings of the British
tanks. The design of the A7V was better than that of the British
vehicles in some of the details - sprung tracks for example and in
some of the wider conceptions, such as thicker armour and a higher
power/weight ratio.
It's engine was also
relatively powerful, making it almost twice as fast as corresponding British
tanks (9 km/h), if moving on dry, flat and hard ground. And it's armour was
thick: in places it was triple the
maximum thickness found in tanks like the Schneider CA 1.
Overall,
however, the A7V was far less successful as a battle vehicle. The
most serious fault was in cross-country performance and
trench-crossing ability which were poor because of the high centre
of gravity and low tracks with the hull overhanging at front and
rear. Also, due to the large transmission
housing, the
vehicle had a ground clearance of only 20cm (!), which meant that it could get
stuck almost anywhere. And technically there were
many weak points in the vehicle, and it broke down often.
The Nordenfelt guns
had a lower rate of fire than the British 6-pdrs. Early tanks had
mechanical faults and the armour plate was badly fitted and in some
cases of inferior quality. These faults were corrected later (some
tanks had single large side plates instead of several sections, for
example) but the basic design could not be altered. The Germans made
as much use as possible of captured tanks and the A7V's successor
was modelled on the layout of the British machines.
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As mentioned elsewhere, there are actually quite a lot of A7V-kits
around, and now the modellers are blessed with, not one, not two, but three new variants of this strange German WW1 tank. It is the Czech manufacturer Kora
Models, of K-Wagen fame, that has produced these three new kits of the A7V. The kit comes packed in a small
illustrated cardboard box.
The kit itself is done in
light-yellow, hard resin. The moulding is good and pretty sharp, with many of the surface details being
true-to-scale, especially the rivets, that are well-defined, and comes in several
sizes. There are some annoying moulding plugs to be removed. The kit consists of many more parts that we are used to, when it comes to resin A7V:s in this
scale. First of all, the hull is not a single, solid moulding, but instead consists of
side, front, back, top and bottom sides, which means that the hull will be
hollow. Some details, like the two top grilles, and the cupola, are also separate parts. The running gear is also made up from separate parts, including
tracks, driving sprockets and wheel springs. This is of course a bonus om both parts, as it gives the modeler greater flexibility in presenting his A7V. The only snag is - and this is just a
possibility, as I have not yet built the kit - is that the alignment of the different hull plate parts can of course be a bit
difficult. The kit also comes with a set of
Photo-Etched details.
The PE set is NOT, as in the K-Wagen
kit, mainly used to supply surface detail, but supplies you with parts ideally suited for this kind of material: running gear
flaps, towing hooks, handles etc. Excellent!
The accuracy is quite good, but then again the modeler will still have to check his
references, as there was not two A7V:s that were completely alike, especially when it comes to exhaust pipes, mud flaps etc. (The actual kit reviewed here portrays the early variant, with Röchling side plates and buck mount for the
gun.) Note however, that the kit seems to be rather tricky to build.
The instructions are first rate, and up to the high standard typical of Kora. The include both comprehensive building instructions and some helpful notes regarding camouflage and
markings. The only thing that intrigues me, is that the instructions mentions
decals, but none are found in the kits I have seen. Is this an over-sight or a change in plan?
(Decals would of course be most welcome.) All in all, I think that this is without doubt THE BEST Braille Scale A7V that you can get today! Well done Robert Koraba of Kora
Models! (I for one can't wait to see what you will produce next.) The kit can be bought from Panzershop in the Czech
republic.
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