Junkers Ju 87 STUKA
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This is the final mock model that Chauncy built |
Question: Dear Chauncy, Do you have any thoughts
on how to acheive acceptable wings on the stuka? sincerely, ethan
mcmillin
Answer: Ethan, I'll try to help: Start with
the center section. Once assembled and dry, attach the out wing
sections to it. Remember to leave the back edge of the gray center
area open (that will be inside the fuselage) if you need to get
fingers or tweezers in to help align the parts. Before cutting
out the parts, very lightly score the line between the wing part
and it's connecting tabs. Then when ready to assemble, pre-bend
the tab into the approximate angle that will give the necessary
"crook" to the wing(s). If you score these too deeply
you're wings will flex and this is not desirable. Be very careful
when gluing the wing assembly by paying special attention to the
alignments of one part to another. Apply glue to a set of tabs
and start by sliding the overlapping part onto them, slowing working
your way down the seam until it is complete. Pay VERY close attention
as you slide the parts together. Once a tab is covered and proper
alignment is achieved at that point, move on to the next, etc.
If the seams are all aligned correctly, the proper "crook"
will have been attained. Actually, this will happen to several
tabs at once as you move along. If, after completing the whole
wing assembly you find that you still need more crank in the wings,
grasp the wing assembly on either side of each outer joint and
ever-so-slightly bend upwards. Too much, and the wings will buckle,
so be very gentle and stop at the first sign of creasing. Do the
port side and then starboard. Again, if one observes part alignment
very carefully, this shouldn't be necessary. Chauncy Green
Engine: One 600hp Junkers Jumo 2 I0Ca
inverted-Vee type
Span : 45ft 31/2 in (13.80m)
Length: 35ft 6 1/2 in (10.83m)
Wing area: 343.4sq ft (31.90sq m)
Maximum take-off weight: 7,4961b
(3,400kg)
Maximum speed with 250kg bomb:
183mph (295km/hr) at 9,845ft (3,000m)
Service ceiling: 22,965h (7,000m)
Maximum range: 621 miles (1,000km)
In the mid-1940s the McDonnell Aircraft Company in the
USA built a carrier-based jet fighter which it named the Banshee.
It is a name that might with considerably greater aptness have
been bestowed upon a much less attractive warplane of a decade
earlier; but the Junkers Ju 87 gave rise to a name of its own
that was to have far more terrifying connotations to millions
of Europeans. For the Ju 87 was a Sturzkampfflugzeug, the German
word for dive-bomber, and with deadly effect it was to personify
the sterm 'Stuka' for the rest of its career. Development of the
dive-bomber in Germany was fostered by Ernst Udet, after seeing
a demonstration by the American Curtiss Helldiver in 1933.
The
Ju 87, designed by Dipl Ing Hans Pohlmann of Junkers, made its
first flight in the early pan of 1935. Even today it would still
be in any 'top ten' awards for ugliness, but beauty was hardly
its business. To put it as generously as possible, its design
was strictly functional, and there is no doubt that this objective
was achieved. The initial Ju 87A version, blooded in the Spanish
Civil War from December 1937, was soon superseded by the improved
Ju 87B with (though it may not have looked like it) aerodynamic
improvements and a substantially more powerful engine. Able to
carry up to 1,000kg of bombs, according to version, the Ju 87B
also was fitted with small sirens near the tops of the main undercamage
leg fairings, to add a devastating and demoralising scream to
the whine of its engine and the whistle of its falling bombs.
Hailed as the 'supreme weapon' by the German propaganda machine,
it did indeed appear to justify this title as it screamed and
bombed its way through Poland, Norway, France and the Low Countries
during World War 2, against little or no effective fighter opposition.
Then, at Dunkirk and in the Battle of Britain, it came up against
the Hurricane and Spitfire - and was quickly proved to be clumsy,
poorly an-ned and extremely vulnerable. Before the end of August
1940 it had been withdrawn from major operations against Britain,
though later, in conditions more favourable to it, it succeeded
again in Greece, in Crete and on the Russian Front. But the 'supreme
weapon' myth had by then been exploded, and even its quite successful
use as a tank-buster (Ju 87D) and anti-shipping aircraft (Ju 87R)
was not enough to restore fully its tarnished reputation.
The United States and Germany, in particular, were
enthusiastic proponents of the dive bomber during the later 1930s
and the early part of World War 2. This particular species of
warplane seemed to be typified in the Ju 87, whose ugly lines
and wailing engine struck an especial note of terror in the skies
above Poland, France and the Low Countries in 1939-40. Design
of the Ju 87, by Dipl-Ing Pohlmann, started in 1933, and the first
prototype flew early in 1935. This was powered by a Rolls-Royce
Kestrel engine and had rectangular twin fins and rudders, but
the Ju 87V2, flown in the following autumn, had a single tail
and a 6 1 Ohp Junkers Jurno 2 1 OA engine, and was more representative
of the production aircraft to follow. A pre-series batch of Ju
87A-Os was started in 1936, and in the spring of 1937 delivery
began of the Ju 87A- I initial production model, followed by the
generally similar A-2. About two hundred A series were built before,
in the autumn of 1938, there appeared the much-modified Ju 87B.
Powered by the Jumo 211, this had an enlarged vertical tail, redesigned
crew canopy and new-style cantilever fairings over the main legs
of the landing gear.
Both the A and B models were sent for service with the Condor
Legion in Spain in 1938, but by the outbreak of World War 2 the
A series had been relegated to the training role, and the three
hundred and thirty-six aircraft in front-line service were all
Ju 87B- Is. The fighter superiority of the Luftwaffe ensured the
Ju 87 a comparatively uninterrupted passage in 1939-40, but opposition
during the Battle of Britain was much sterner, and losses of the
Ju 87 were considerably heavier. Nevertheless, production of the
B seiies continued into 1941, and substantial numbers were supplied
to the Regia Aeronautica, and to the air forces of Bulgaria, Hungary
and Romania. In production
alongside the B series was the long-range
Ju 87R, which from 1940 was used for antishipping and other missions.
Before the war small numbers were also completed of the Ju 87C,
a version of the B with arrester hook, folding wings and other
'navalised' attributes. This was planned for service aboard the
carrier Graf Zeppe1in, but the ship was never completed, and the
few Ju 87C-Os built served with a land-based unit. Others laid
down as C-Is were completed as B-2s. After the setbacks in the
Battle of Britain the Ju 87B continued to serve in the Mediterranean
and North Africa.
Its subsequent development and employment was mainly in the
close-support role or as a trainer. Next major variant was the
Ju 87D, whose evolution had begun in 1940. Several sub-types of
this model were built, their chief characteristics being the use
of a more powerful jumo engine, increased fuel tankage similar
to that of the ju 87R, and a considerably refined airframe with
reinforced armament and extra armour protection for the crew.
Most D variants were evolved for a ground-attack role, and could
carry a variety of different weapon loads ranging from a single
3,9681b (1,800kg) bomb beneath the fuselage to a pair of underwing
pods each containing six 7 - 9mm machineguns. The dive brakes
fitted to the earlier ju 87s were usually omitted.
The ju 87D-5 introduced an extended wing of 49ft 21, in (15
.00m) span, and the D-7 was a specialised night-attack version.
Variants of the Ju 87D served in the Mediterranean, North Africa
and on the Eastern Front, equipping units of the Hungarian and
Romanian air forces as well as those of the Luftwaffe. Proposals
to replace the D model by developments of it designated ju 87F
and ju 187 were abandoned in 1943, but one other variant was encountered
operationally. This was the ju 87G, which entered service in 1943
as an anti-tank aeroplane with a 37mm BK 3.7 cannon mounted in
a streamlined fairing attached beneath each wing. These could
be replaced by bombs for more general ground-attack missions.

The Ju 87G was essentially a conversion of the long-span D-5,
and aircraft of this type were quite successful in knocking out
Soviet tanks along the Eastern Front until the appearance of better-class
Soviet fighter opposition in the autumn of 1944. Operational trainers
for pilots engaged in ground-attack work were produced, under
the designation ju 87H, by converting various D sub-series to
have dual controls and modified cockpit hoods. When production
of the Ju 87 series finally ended in September 1944, more than
five thousand seven hundred of these aircraft had been built.
The Ju 87G-1 anti-tank aircraft ..
..was the last variant of the Ju 87 to become operational, apart
from the Ju 87H trainer. The G-11 was not a new-build variant,
but was converted from Ju 87113-5 airframes. The basic Ju 87D-5
was adapted to carry a pair of massive Flak 18 (BK 3,7) 37-mm
cannon pods under its outer wing panels. It could carry bombs
instead of guns, but had no dive-brakes. The removal of divebombing
equipment made ~the G-11 most unrepresentative among Stuka variants.
The concept was the brainchild of the extraordinary Hans-Ulrich
Rudel who, despite being shot down 30 times, flew no fewer than
2,530 combat sorties and destroyed 519 Russian tanks. 10 (Pz)./SG3
formed in MarGh 1944 through the redesignation of 4./StG2, and
was based at Jakobstadt in Latvia as part of Luftflotte I between
April and July 1944. The unit helped cover the retreat westwards,
becoming incorporated in I/SG 9 as 2. Staffell on 7 January 1945,
and ending the war in the Courliand pocket.
Where the Stuka Units served: Unit Ju 87s took
part in the Polish campaign, the attacks on the Low Countries
and the Battle of France. The Stukas then faced the fighters of
the RAF in the Battle of Britain, and suffered accordingly. Another
successful campaign in Greece and the Balkans followed, before
the Stukegeschwader turned their attentions to the Eastern Front,
where they fought until late 1943, when the units were redesignated
as Schlachtgeschwader, most later transitioning to the more potent
Fw 190. The Ju 87G-I s served only with l I I/SG 2 and with 10.
(Pz)/SG 1, 10.(Pz)/SG 2, 10.(Pz)/SG 3, and 10 (Pz)/SG 77. Luftwaffe
tactical aircraft carried four-digit/letter codes on the rear
f uselage. The first pair denoted the major unit (Geschwader or
Gruppe), the third identified the individual aircraft and was
presented in differing colours depending on whether the unit was
the staff f light, first, second or third Staffel of each group,
and the fourth identified the Staffel itself.


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