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       #Post#: 11230--------------------------------------------------
       Plane of the Week: Dewoitine D.520
       By: vonofterdingen Date: May 11, 2020, 2:17 pm
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       [img width=1024
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       This is one of those “forgotten” planes in our game. The
       French Dewoitine D.520 was a very capable early war fighter that
       gets little notice due to the brevity of the Battle of France.
       Arguably France’s best fighter(votes too for the Arsenal VG-33
       and the American made P-36), the Dewoitine was not especially
       fast but was highly maneuverable and made effective use of a 20
       mm cannon as part of its armament. It saw service in the Battle
       of France, but also in the Vichy Air Force and Regia
       Aeronautica.
       From Wikipedia:
       The Dewoitine D.520 was a French fighter aircraft that
       entered service in early 1940, shortly after the beginning of
       the Second World War.
       The D.520 was designed in response to a 1936 requirement from
       the French Air Force for a fast, modern fighter with a good
       climbing speed and an armament centred on a 20 mm cannon. At the
       time the most powerful V 12 liquid-cooled engine available in
       France was the Hispano-Suiza 12Y, which was less powerful, but
       lighter than contemporary engines such as the Rolls-Royce Merlin
       and Daimler-Benz DB 601. Other fighters were designed to meet
       the specifications but none of them entered service, or entered
       service in small numbers, too late to play a significant role
       during the Battle of France.
       Unlike the Morane-Saulnier M.S.406, which was at that time
       the most numerous fighter in the French Air Force, the Dewoitine
       D.520 came close to being a match for the latest German types,
       such as the Messerschmitt Bf 109. It was slower than the Bf 109E
       but superior in manoeuvrability. Because of production delays,
       only a small number were available for combat against the
       Luftwaffe. The D.520 proved to be relatively capable as a
       dogfighter against the Luftwaffe's inventory, but lacked
       sufficient numbers to make a difference.
       Following the armistice, the D.520 continued to be used,
       being operated by both the Free French Air Force and the Vichy
       French Air Force. The type was also returned to production
       during 1942, although it was manufactured at a lower rate than
       it had been during 1940. Additional examples were operated by
       the Luftwaffe, Regia Aeronautica, and the Bulgarian Air Force.
       The D.520 saw combat service in North Africa, Bulgaria, and the
       Eastern Front, as well as use in France and Germany for training
       and defence purposes.
       The Groupe de Chasse I/3 was the first unit to get the D.520,
       receiving its first aircraft in January 1940. These initial
       examples were unarmed and used for pilot training. In April and
       May 1940, operational units received 34 'war-capable' production
       D.520s; the type quickly proved to be highly popular with pilots
       and ground crew. During comparative trials on 21 April 1940 at
       CEMA at Orleans-Bricy against a captured Bf 109E-3, the German
       aircraft had a 32 km/h (20 mph) speed advantage owing to its
       more powerful engine. However, the D.520 had superior
       maneuverability, matching its turning circle, although
       displaying nasty characteristics when departing and spinning out
       of the turn repeatedly during the tests. The Bf 109, owing to
       its slats, could easily sustain the turn on the edge of a stall.
       By 10 May 1940, when the Phoney War came to an end as Germany
       launched the invasion of France and the Low Countries, a total
       of 246 D.520s had been manufactured, but the French Air Force
       had accepted only 79 of these, as most others had been sent back
       to the factory to be retrofitted to the new standard. As a
       result, only GC I/3 was fully equipped, possessing a force of 36
       aircraft. These met the Luftwaffe on 13 May, shooting down three
       Henschel Hs 126s and one Heinkel He 111 without suffering any
       losses. The next day, two D.520s were lost while a total of ten
       Luftwaffe aircraft (4 Messerschmitt Bf 110s, 2 Bf 109Es, 2
       Dornier Do 17s, and 2 He 111s) were confirmed to be destroyed.
       Four more Groupes de Chasse and three naval Escadrilles
       rearmed with the type before France's surrender. GC II/3, GC
       III/3, GC III/6 and GC II/7 later completed conversion on the
       D.520. A naval unit, the 1er Flotille de Chasse, was also
       equipped with the Dewoitine. However, only GC I/3, II/7, II/6
       and the naval AC 1 saw any action in the Battle of France. GC
       III/7 converted to the D.520 too late to be involved in any
       action. In addition, several aircraft were flown by
       non-operational units, such as the special patrol of the École
       de l'air military school, as well as a handful flown by Polish
       and civilian pilots in defence of airstrips and production
       facilities in the vicinity of Toulouse.
       [img width=1024
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       In air combat, mostly against the Italians, the Dewoitine
       520s claimed 114 air victories, plus 39 probables. Eighty five
       D.520s were lost. By the armistice at the end of June 1940, 437
       D.520s had been constructed, 351 of these having been delivered.
       After the armistice, 165 D.520s were evacuated to North Africa.
       GC I/3, II/3, III/3, III/6 and II/7 flew their aircraft to
       Algeria to avoid capture.[35] Three more, from GC III/7, escaped
       to Britain and were delivered to the Free French. A total of 153
       D.520s remained in unoccupied mainland France.
       One of the most successful D.520 pilots was Pierre Le Gloan,
       who shot 18 aircraft down (four Germans, seven Italian and seven
       British), scoring all of his kills with the D.520, and ranked as
       the fourth-highest French ace of the war.
       Under Vichy, the German armistice commission authorized Vichy
       authorities to resume production of a batch of 1,000 military
       aircraft for their own use, under the condition that 2,000
       German-designed aircraft would later be manufactured in France
       and delivered to Germany. As part of this agreement, 550
       examples of the D.520 were ordered to replace all other
       single-seat fighters in service. However, no D.520 units were to
       be stationed on the French mainland, thus individual aircraft
       were instead stored or dispatched to units overseas, such as in
       North Africa.
       The plan was to have the Dewoitine eventually equip a total
       of 17 Groupes with 442 aircraft, three escadrilles of the
       Aéronautique navale with 37 aircraft each, plus three training
       units with 13 aircraft. The agreement stated that aircraft of
       this new batch were to be similar to the ones already in
       service. From serial number 543 on, however, D.520s used the
       12Y-49 engine that had a slightly higher rated performance than
       the 12Y-45, although the German Armistice Commission explicitly
       prohibited replacing the original power plants with the more
       powerful 12Y51 or 12Z engines.
       In 1941, D.520s of GC III/6, II/3 and naval escadrille 1AC
       fought the Allies during the Syria–Lebanon campaign. The Vichy
       French Air Force was already relatively strong, but several
       units were sent to reinforce it. D.520s were the only French
       single-seat fighters capable of making the trip to Syria. The GC
       III/6 was sent first. The ferry trip was very difficult for a
       1940 interceptor and the pilots pushed their planes as far as
       their fuel tanks would allow them to. They flew from France to
       Syria with intermediate stops at Rome, Brindisi or Catania.
       Another route was available through Germany and Greece (Athens),
       but it was seldom used. The trip always included a stopover in
       Rhodes (which had an Italian base at the time), before the final
       flight to Syria. This meant several thousand kilometers were
       flown over mountains and sea. The most demanding part was
       Catania-Rhodes, which entailed no less than 1,200 km flown over
       water.[39] Even the trip from Rhodes to Syria was 800 km. LeO
       451s and Martin 167F bombers had few problems, but D.520s were
       forced to fly a strenuous and dangerous mission, without any
       help or external assistance. Of the 168 French aircraft (of all
       types) sent to Syria, 155 accomplished their mission and arrived
       successfully. The Vichy Air force was numerically strong, but
       with very few ground crew and spare parts, which meant that the
       operational flying time for the D.520s was very limited. D.520s
       of GC III/6 first saw action against British aircraft on 8 June
       1941, when they shot down three Fairey Fulmars, losing one D.520
       (its pilot was taken prisoner). Over the following days several
       escort missions were flown to protect Martin, LeO and Bloch 200
       (3/39 Esc) bombers from British Royal Navy fighters. Two
       Hurricanes were shot down (with another D.520 lost) on 9 June.
       During the Syria campaign, a total of 266 missions were
       conducted by the Vichy French Air Force: 99 of them were carried
       out by D.520s, nine by MS.406s, 46 by Martin 167s and 31 by LeO
       451s. The D.520s were therefore the most active of the French
       aircraft in the campaign, where they claimed 31 kills over
       British and Australian units while losing 11 of their own in air
       combat and a further 24 to anti-aircraft fire, accidents and
       attacks on their airfields.[citation needed] On 10 July, five
       D.520s attacked Bristol Blenheim bombers from No. 45 Squadron
       RAF that were being escorted by seven Curtiss Tomahawks from No.
       3 Squadron RAAF (3 Sqn). The French pilots claimed three
       Blenheims, but at least four of the D.520s were destroyed by the
       Australian escorts, including two by flying officer Peter
       Turnbull.[41][42] The following day, a Dewoitine pilot shot a
       P-40 down from 3 Sqn, the only Tomahawk lost during the
       campaign.[41] This Dewoitine was in turn shot down by F/O Bobby
       Gibbes. The initial advantage that the Vichy French Air Force
       enjoyed did not last long, and they lost most of their aircraft
       during the campaign. The majority of them were destroyed on the
       ground where the flat terrain, absence of infrastructure and
       absence of modern anti-aircraft (AA) artillery made them
       vulnerable to air attacks. On 26 June, a strafing run by
       Tomahawks of 3 Sqn, on Homs airfield, destroyed five D.520s of
       Fighter Squadron II/3 (Groupe de Chasse II/3) and damaged six
       more.
       By the end of the campaign, Vichy forces had lost 179
       aircraft from the approximately 289 committed to the Levant. The
       remaining aircraft with the range to do so, evacuated to Rhodes.
       The known French losses of fighter aircraft were 26 in air
       combat and 45 in strafing and bombing actions. The Allies lost
       41 planes, 27 of those shot down by French fighters. During
       Operation Torch (the invasion of North Africa), GC III/3
       (previously known as GC I/3), was engaged in combat with the
       Allies over Oran. Flotille 1F saw action against the United
       States Navy Grumman F4F Wildcat squadron VF-41 (from the carrier
       USS Ranger), over Casablanca. One D.520 was among fourteen US
       victory claims; the only Allied losses were due to ground and
       friendly fire.[43] Other Dewoitine-equipped units in North
       Africa such as GC II/7 or GC II/3 did not take part in the
       fighting. Overall, the known D.520 air strength in North Africa
       was 173 D.520s (143 combat ready) of GC II/3, III/3, III/6, II/7
       and II/5; another 30 were in Senegal with GC II/6. The Navy had
       Esc 1AC and 2AC. Many D.520s were destroyed on the ground by
       Allied bombing. The French Air Force lost 56 aircraft, among
       them 13 D.520s. The Navy lost 19 D.520s. Among the 44 kills that
       the French scored overall, there were five losses from fighters
       and flak out of a squadron of eight Fairey Albacores from HMS
       Furious, some of which were shot down by D.520s of GC III/3.
       About 60 D.520s were acquired by the Regia Aeronautica (the
       Italian Air Force or RA). Italian pilots appreciated the
       aircraft's capabilities and Hispano-Suiza HS.404 cannon, at
       least by 1940–1941 standards. The first three D.520s were
       assigned to 2° Stormo based at the Torino-Caselle airfield,
       where they were used for the defence of Torino's industrial
       area. Other D.520s were captured in Montélimar, Orange, Istres
       and Aix-en-Provence.
       At the beginning of 1943, the Italian ace Luigi Gorrini
       ferried D.520s taken as prizes of war to Italy to be used for
       defence. "I have collected several dozen Dewoitines from various
       French airfields and the Toulouse factory", he recalled
       later.[49] "At the time, when we were still flying the Macchi
       C.200, it was a good, if not very good, machine. Compared to the
       Macchi 200, it was superior only in one point: its armament of
       the Hispano-Suiza HS 404 20 mm cannon."[49] Italian pilots liked
       the 20 mm gun, the modern cockpit, the excellent radio set and
       the easy recovery from a spin but they also complained about the
       weak undercarriage and the small [cannon] ammunition drum
       capability; the ammunition was not available in quantities (the
       HS.404 was not compatible with Breda and Scotti 20 mm guns, so
       everything depended on France's depots). At the end of February
       the 359a Squadriglia (22° Gruppo), led by Major Vittorio
       Minguzzi, received eight Dewoitine D.520. At that time, American
       B-24s frequently bombed Naples, so an effective interceptor was
       badly needed, and D.520s were all that were available in early
       1943. The 359a Squadriglia pilots used Dewoitines with some
       success.
       On 1 March 1943, Maggiore Minguzzi claimed a B-24 while
       flying a D.520. This claim was initially only claimed as a
       probable but was later upgraded to a confirmed. This was
       probably the first Italian claim using this aircraft. On 21 May
       1943, the Regia Aeronautica and the Luftwaffe agreed to exchange
       39 Lioré et Olivier LeO 451s, captured by the Italians at the
       SNCASE factory in Ambérieu-en-Bugey (Lyon), with a stock of 30
       D.520s. Subsequently, in the spring and summer of 1943, the
       Dewoitines were used by 161° Gruppo Autonomo, based in southern
       Italy with 163a Squadriglia in Grottaglie, 162a Squadriglia in
       Crotone and 164a Squadriglia in Reggio Calabria. On 31 July
       1943, the Regia Aeronautica still had 47 Dewoitines in service.
       After the armistice of 8 September 1943, three D.520s,
       previously in service with 24° Gruppo, were used by the
       Aeronautica Nazionale Repubblicana of the Italian Social
       Republic for training.
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       In game…
       This is another one of those planes that I think deserves a
       little more attention in our game. Though hampered some by a
       rather underpowered engine, its armament and maneuverability
       make it fun and capable to fly in game. I’m not sure why this
       matters to me, but I also appreciate a plane that I find
       good-looking and that is the case for the Dewoitine. It has very
       attractive lines. Also, the modder know as Freddy made one of
       the most beautiful cockpits I have ever seen in IL-2 for this
       airplane.
       You will seldom be overmatched flying the D.520 in game in
       early war scenarios. Unfortunately there just aren’t’ a lot of
       campaigns for the plane.
       #Post#: 11236--------------------------------------------------
       Re: Plane of the Week: Dewoitine D.520
       By: Beowolff Date: May 12, 2020, 7:02 am
       ---------------------------------------------------------
       Very cool plane, Von … and really nice review of it.  Though I
       like the look of this old warbird, I must admit to rarely flying
       it, and since I'm totally raw meat to her, every time I do I get
       my arse handed to me by the enemy!  G'ah!
       ??? :(
       Sadly, I don't think I've ever scored a kill in it.
       (wha-whaaaa! sound!)  But my unfamiliarity with it has bred my
       incompetence so I can't say for sure that it's the plane or just
       ME.  Likely, just ME.  (wha-whaaaa! sound again!)
       The stats show clearly that the plane 'could' perform.  Perhaps
       it is just a mental block on my part and really I get that
       because I've been conditioned from years of reading bad things
       about French WW2 planes (some true, others obviously not true),
       so perhaps that is my REAL underlying trouble.
       Yes, some French birds weren't so hot... and clearly the French
       Air Force was a somewhat confused mess as all of their military
       was at the time, but they really did have some good warbirds and
       clearly this baby could fight.
       I just need to buckle down and fly her and learn her ways.
       You've included some great info here about this old warhorse...a
       nice job.  Thank you for your work.
       S!   :D
       Beo
       #Post#: 11240--------------------------------------------------
       Re: Plane of the Week: Dewoitine D.520
       By: cafs Date: May 12, 2020, 7:49 am
       ---------------------------------------------------------
       The best French-build fighter, and one of the most beautiful
       early war planes, together with the Spitfire, LaGG-3, Zero/Oscar
       ( two almost identical looking fighters, together with Ki-27
       Nate, this is the cause of AVG's pilots identifying all Japanese
       fighters as Zeros ) and the Curtiss P-40b Tomahawk. Not too far
       behind came the Macchi MC.200 Saetta and Polikarpov I-16, all
       very clean looking planes, with beautiful curved lines.
       The Messerchmitt bf-109 was a "too German" design, straight
       lines, without a single curve. Beauty= 2, Efficiency= 10.
       The Me-109Fand G were far more beautiful, keeping the
       efficiency.
       Beo, you need to fly the De.520 like the Spitfire, keep the
       fight on the horizontal plane, do not follow a Me-109 on the
       vertical fight, unless it was damaged. You can follow it in a
       dive, but carefully. In the BoF and the BoB that was the great
       problem for the allied pilots, they were frequently jumped when
       still on a climb to the incoming German bomber/fighter height
       raid.
       Thanks Von.
       #Post#: 11242--------------------------------------------------
       Re: Plane of the Week: Dewoitine D.520
       By: larsresult Date: May 12, 2020, 7:59 am
       ---------------------------------------------------------
       Great choice Von. I have always liked the D520. I even got to
       sit in one in the La Ferte Alais airshow, south of Paris France,
       before it was ground looped. The cockpit was very compact or was
       I that big. lol.
       There seem to be at least two versions in the sim. One just kept
       ground looping and never got off the ground. Never did get an
       answer to that. Pity as it implied it was the more accurate
       model. Used an air start and took out a Bf110 and a Bf109 before
       ammo ran out. The HS404 cannon equipped the early Spitfire 1b
       but was prone to jamming alot.
       This would make an interesting career, flying for the Armee De
       L'air, Regia Aeronautica, Vichy AF, Free French AF, and
       Bulgarian AF.
       It is thought that if things had gone differently the D520 would
       have had a development along the lines of the Spitfire and
       Bf109. There was already a D551 being built when they
       surrendered.
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