Difference between revisions of "D4Y1"

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{{Specs-Card|code=d4y1}}
 
 
{{About
 
{{About
 
| about = Japanese dive bomber '''{{PAGENAME}}'''
 
| about = Japanese dive bomber '''{{PAGENAME}}'''
−
| and
 
 
| usage = other versions
 
| usage = other versions
−
| link-1 = D4Y2
+
| link = D4Y (Family)
−
| link-2 = D4Y3 Ko
+
}}
 +
{{Specs-Card
 +
|code=d4y1
 +
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg|ArtImage_{{PAGENAME}}.png}}
 
}}
 
}}
  
 
== Description ==
 
== Description ==
 
<!-- ''In the description, the first part should be about the history of and the creation and combat usage of the aircraft, as well as its key features. In the second part, tell the reader about the aircraft in the game. Insert a screenshot of the vehicle, so that if the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle the article is talking about.'' -->
 
<!-- ''In the description, the first part should be about the history of and the creation and combat usage of the aircraft, as well as its key features. In the second part, tell the reader about the aircraft in the game. Insert a screenshot of the vehicle, so that if the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle the article is talking about.'' -->
−
[[File:GarageImage_{{PAGENAME}}.jpg|420px|thumb|left]]
+
The '''{{Specs|name}} mod. 11''', designated as the '''Suisei 11 ({{Annotation|彗星一一型|Comet, Model 11}})''', was a dive bomber developed to replace the [[D3A1]] with the primary design criteria being able to out-speed pursuers and out-range American carriers. With Japanese engine development lacking behind, the chosen high-output engine for the Suisei was the Aichi Atsuta 21 engine, a license-produced DB 601 found on the [[Bf 109 (Family)]] and many other German planes. While the engine outperformed its Japanese counterparts, the lack of industrial power, rare resources for parts and overall maintenance complexity strained its reliability and production numbers.
−
{{break}}
+
 
−
The '''{{Specs|name}}''' is a rank {{Specs|rank}} Japanese dive bomber {{Battle-rating}}. This aircraft was introduced in [[Update 1.75 "La Résistance"]].
+
It was introduced in [[Update 1.75 "La Résistance"]]. The pursuit for a long-range high-speed dive-bomber hampers the other capabilities of D4Y1, with relatively weak survivability, limited to only one bomb of maximum 500 kg which leaves the Suisei as a hit-and-run dive-bomber.
 +
 
 +
;Nicknames:
 +
* [[Abbreviations#.28IJN.29_Official_name_designation|Official Designation]]: ''彗星 (Suisei, "Comet")''
 +
* Allied reporting name: Judy
  
 
== General info ==
 
== General info ==
−
=== Flight Performance ===
+
=== Flight performance ===
−
''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.''
+
{{Specs-Avia-Flight}}
 +
<!-- ''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.'' -->
 +
[[File:D4Y1wikihard1.png|thumb|The D4Y1 going into a dive to destroy a small boat]]
 +
The D4Y1 is a highly agile and speedy aircraft, it can turn fight anything it wishes, even [[Spitfire (Family)|Spitfires]]. It gets a bomber airspawn, which allows the D4Y1 to outclimb all the fighters, but '''be sure to select the right airspawn''', because it gets a carrier spawn by default on pacific maps. The only issue with the performance of this aircraft arises at high altitudes, where it is left without a supercharger.
  
−
{| class="wikitable" style="text-align:center"
+
{| class="wikitable" style="text-align:center" width="70%"
−
|-
+
! rowspan="2" | Characteristics
−
! colspan="8" | Characteristics
 
−
|-
 
−
! colspan="8" | ''Stock''
 
−
|-
 
 
! colspan="2" | Max Speed<br>(km/h at 4,750 m)
 
! colspan="2" | Max Speed<br>(km/h at 4,750 m)
−
! rowspan="2" | Max altitude<br>(meters)
+
! rowspan="2" | Max altitude<br>(metres)
 
! colspan="2" | Turn time<br>(seconds)
 
! colspan="2" | Turn time<br>(seconds)
−
! colspan="2" | Rate of climb<br>(meters/second)
+
! colspan="2" | Rate of climb<br>(metres/second)
−
! rowspan="2" | Take-off run<br>(meters)
+
! rowspan="2" | Take-off run<br>(metres)
−
|-
 
−
! AB
 
−
! RB
 
−
! AB
 
−
! RB
 
−
! AB
 
−
! RB
 
−
|-
 
−
| 520 || 509 || {{Specs|ceiling}} || 23.9 || 24.5 || 5.6 || 5.6 || 300
 
−
|-
 
−
! colspan="8" | ''Upgraded''
 
 
|-
 
|-
−
! colspan="2" | Max Speed<br>(km/h at 4,750 m)
+
! AB !! RB !! AB !! RB !! AB !! RB
−
! rowspan="2" | Max altitude<br>(meters)
 
−
! colspan="2" | Turn time<br>(seconds)
 
−
! colspan="2" | Rate of climb<br>(meters/second)
 
−
! rowspan="2" | Take-off run<br>(meters)
 
 
|-
 
|-
−
! AB
+
! Stock
−
! RB
+
| 520 || 509 || rowspan="2" | {{Specs|ceiling}} || 23.9 || 24.5 || 5.6 || 5.6 || rowspan="2" | 300
−
! AB
 
−
! RB
 
−
! AB
 
−
! RB
 
 
|-
 
|-
−
| 589 || 552 || {{Specs|ceiling}} || 22.2 || 23.0 || 14.4 || 9.3 || 300
+
! Upgraded
 +
| 589 || 552 || 22.2 || 23.0 || 14.4 || 9.3
 
|-
 
|-
 
|}
 
|}
  
−
====Details====
+
==== Details ====
−
{| class="wikitable" style="text-align:center"
+
[[File:D4Y1wikihard3.png|thumb|The D4Y1 is useful in Naval Ralistic Battles, as it can destroy many lightly armoured boats at this BR with its 500 kg bomb]]
 +
{| class="wikitable" style="text-align:center" width="50%"
 
|-
 
|-
 
! colspan="5" | Features
 
! colspan="5" | Features
 
|-
 
|-
−
! Combat flaps
+
! Combat flaps !! Take-off flaps !! Landing flaps !! Air brakes !! Arrestor gear
−
! Take-off flaps
 
−
! Landing flaps
 
−
! Air brakes
 
−
! Arrestor gear
 
 
|-
 
|-
 
| ✓ || ✓ || ✓ || ✓ || ✓    <!-- ✓ -->
 
| ✓ || ✓ || ✓ || ✓ || ✓    <!-- ✓ -->
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|}
 
|}
  
−
{| class="wikitable" style="text-align:center"
+
{| class="wikitable" style="text-align:center" width="50%"
 
|-
 
|-
−
! colspan="5" | Limits
+
! colspan="7" | Limits
 
|-
 
|-
−
! rowspan="2" | Wing-break speed<br>(km/h)
+
! rowspan="2" | Wings (km/h)
−
! rowspan="2" | Gear limit<br>(km/h)
+
! rowspan="2" | Gear (km/h)
−
! rowspan="2" | Combat flaps<br>(km/h)
+
! colspan="3" | Flaps (km/h)
 
! colspan="2" | Max Static G
 
! colspan="2" | Max Static G
 
|-
 
|-
−
! +
+
! Combat !! Take-off !! Landing !! + !! -
−
! -
 
 
|-
 
|-
−
| {{Specs|destruction|constructions}} || {{Specs|destruction|chassis}} || 480 || ~15 || ~11
+
| {{Specs|destruction|body}} || {{Specs|destruction|gear}} || 457 || 428 || 280 || ~15 || ~11
 
|-
 
|-
 
|}
 
|}
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{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
−
! colspan="4" | Optimal velocities
+
! colspan="4" | Optimal velocities (km/h)
 
|-
 
|-
−
! Ailerons<br>(km/h)
+
! Ailerons !! Rudder !! Elevators !! Radiator
−
! Rudder<br>(km/h)
 
−
! Elevators<br>(km/h)
 
−
! Radiator<br>(km/h)
 
 
|-
 
|-
−
| < 350 || < 400 || < 430 || > 200
+
| < 350 || < 400 || < 400 || > 200
 
|-
 
|-
 
|}
 
|}
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=== Survivability and armour ===
 
=== Survivability and armour ===
−
The D4Y1 has no armor. Additionally, the fuel tanks are not self-sealing. There are 2 in each wing. The gunner is is not covered, making him vulnerable to attacks from the rear.
+
{{Specs-Avia-Armour}}
 +
<!-- ''Examine the survivability of the aircraft. Note how vulnerable the structure is and how secure the pilot is, whether the fuel tanks are armoured, etc. Describe the armour, if there is any, and also mention the vulnerability of other critical aircraft systems.'' -->
 +
The D4Y1 has no armour. Additionally, the fuel tanks are not self-sealing. There are 2 in each wing. The gunner is not covered, making him vulnerable to attacks from the rear.
 +
 
 +
=== Modifications and economy ===
 +
{{Specs-Economy}}
 +
 
 +
The payload option should be a top priority, so getting to tier three modifications is of utmost importance. Rush the new belts and MGs, or the radiator or compressor if you choose to have better performance. Then get the bomb modification. After that, research all engine modifications and then the survivability modifications. Save the turret upgrades for last.
  
 
== Armaments ==
 
== Armaments ==
 +
{{Specs-Avia-Armaments}}
 
=== Offensive armament ===
 
=== Offensive armament ===
 +
{{Specs-Avia-Offensive}}
 
<!-- ''Describe the offensive armament of the aircraft, if any. Describe how effective the cannons and machine guns are in a battle, and also what belts or drums are better to use. If there is no offensive weaponry, delete this subsection.'' -->
 
<!-- ''Describe the offensive armament of the aircraft, if any. Describe how effective the cannons and machine guns are in a battle, and also what belts or drums are better to use. If there is no offensive weaponry, delete this subsection.'' -->
 +
[[File:D4Y1wikihard5.png|thumb|D4Y1 pulling out of a dive]]
 
{{main|Type 97 navy (7.7 mm)}}
 
{{main|Type 97 navy (7.7 mm)}}
  
Line 129: Line 118:
  
 
=== Suspended armament ===
 
=== Suspended armament ===
 +
{{Specs-Avia-Suspended}}
 
<!-- ''Describe the aircraft's suspended armament: additional cannons under the wings, bombs, rockets and torpedoes. This section is especially important for bombers and attackers. If there is no suspended weaponry remove this subsection.'' -->
 
<!-- ''Describe the aircraft's suspended armament: additional cannons under the wings, bombs, rockets and torpedoes. This section is especially important for bombers and attackers. If there is no suspended weaponry remove this subsection.'' -->
 
{{main|Navy Type Number 25 Model 2 (250 kg)|Number Type 2 50 Model 1 GP(SAP) (500 kg)}}
 
{{main|Navy Type Number 25 Model 2 (250 kg)|Number Type 2 50 Model 1 GP(SAP) (500 kg)}}
Line 134: Line 124:
 
The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance:
 
The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance:
  
 +
* Without load
 
* 1 x 250 kg Navy Type Number 25 Model 2 bomb (250 kg total)
 
* 1 x 250 kg Navy Type Number 25 Model 2 bomb (250 kg total)
 
* 1 x 500 kg Number Type 2 50 Model 1 GP(SAP) bomb (500 kg total)
 
* 1 x 500 kg Number Type 2 50 Model 1 GP(SAP) bomb (500 kg total)
  
 
=== Defensive armament ===
 
=== Defensive armament ===
 +
{{Specs-Avia-Defensive}}
 
<!-- ''Defensive armament with turret machine guns or cannons, crewed by gunners. Examine the number of gunners and what belts or drums are better to use. If defensive weaponry is not available, remove this subsection.'' -->
 
<!-- ''Defensive armament with turret machine guns or cannons, crewed by gunners. Examine the number of gunners and what belts or drums are better to use. If defensive weaponry is not available, remove this subsection.'' -->
−
{{main|Type 92 navy (7.7 mm)}}
+
{{main|Type 92 (7.7 mm)}}
  
 
The '''''{{PAGENAME}}''''' is defended by:
 
The '''''{{PAGENAME}}''''' is defended by:
  
−
* 1 x 7.7 mm Type 92 navy machine gun, dorsal turret (582 rpg)
+
* 1 x 7.7 mm Type 92 machine gun, dorsal turret (582 rpg)
  
 
== Usage in battles ==
 
== Usage in battles ==
−
''Describe the tactics of playing in an aircraft, the features of using vehicles in a team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view, but instead, give the reader food for thought. Examine the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).''
+
<!-- ''Describe the tactics of playing in the aircraft, the features of using aircraft in a team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view, but instead, give the reader food for thought. Examine the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).'' -->
 +
[[File:D4Y1wikihard6.png|thumb|The D4Y1 in Fiji]]
 +
The D4Y1 is an excellent example of a multirole aircraft, as it is an excellent ground attack aircraft, fighter, and bomber. Since you get a bomber airspawn, you can drop your bomb on a base and then start to engage the many fighters below you. You should have no problems engaging them, as long is you keep your speed up and your energy high. One key thing to note is that you don't need to use your defensive turret to shoo away enemy interceptors. You can easily out turn any interceptor at that BR. Besides the fighter role, ground attack is the D4Y1's natural method of play. The 500 kg bomb will be excellent for destroying Pillboxes, and you can use your rifle-calibre machine guns to destroy any soft target you please.Spec
  
−
===Manual Engine Control===
+
=== Specific enemies worth noting ===
 +
 
 +
* [[CW-21]] - The CW-21 poses a significant threat to the D4Y1, as it can out-turn, out-climb, and outclass the D4Y1 in every conceivable way. Its armament will shred through the D4Y1, and your plane would be a sitting duck. Now, your gunner can be of some use. Since the CW-21 is a very fragile aircraft, your gunner can set it afire, thus giving you the upper hand. But never under any circumstance attempt to go near this plane, as your gunner is only a last resort.
 +
* [[He 100 D-1]] - Much like the CW-21, this aircraft will outclass you in every way. Your turret will once again come in handy, as it will surely damage its cooling system.
 +
 
 +
=== Manual Engine Control ===
 
{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
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! rowspan="2" | Turbocharger
 
! rowspan="2" | Turbocharger
 
|-
 
|-
−
! Oil
+
! Oil !! Water !! Type
−
! Water
 
−
! Type
 
 
|-
 
|-
−
| Controllable || rowspan="2" | Controllable<br>Not auto controlled || rowspan="2" | Controllable<br>Not auto controlled || rowspan="2" | Controllable<br>Not auto controlled || rowspan="2" | Separate || rowspan="2" | Not controllable<br>1 gear || rowspan="2" | Not controllable
+
| Controllable || Controllable<br>Not auto controlled || Controllable<br>Not auto controlled || Controllable<br>Not auto controlled || Separate || Not controllable<br>1 gear || Not controllable
−
|-
 
−
|}
 
−
 
 
−
===Modules===
 
−
{| class="wikitable"
 
−
! colspan="1" | Tier
 
−
! colspan="2" | Flight performance
 
−
! colspan="1" | Survivability
 
−
! colspan="2" | Weaponry
 
−
|-
 
−
| I
 
−
| Fuselage repair
 
−
| Radiator
 
−
|
 
−
| Offensive 7 mm
 
−
|
 
−
|-
 
−
| II
 
−
|
 
−
| Compressor
 
−
| Airframe
 
−
| New 7 mm MGs
 
−
|
 
−
|-
 
−
| III
 
−
| Wings repair
 
−
| Engine
 
−
|
 
−
| Turret 7 mm
 
−
| 13 in (mod35)
 
−
|-
 
−
| IV
 
−
|
 
−
| Engine injection
 
−
| Cover
 
−
| New 7 mm MGs (turret)
 
−
|
 
 
|-
 
|-
 
|}
 
|}
  
 
=== Pros and cons ===
 
=== Pros and cons ===
−
<!--Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".-->
+
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' -->
 +
[[File:D4Y1wikihard8.png|thumb|The D4Y1's defensive gunner, which can help pick seagulls off of your six]]
  
 
'''Pros:'''
 
'''Pros:'''
  
−
* Nimble, can outturn certain enemy fighters
+
* '''D'''4Y for Carrier-based dive bomber:
 +
** Choice between a 250 kg and a 500 kg bomb
 +
** Bomber airspawn, outclimbs anything and can intercept
 +
** Airbrakes
 +
* Common Navy plane construction:
 +
** Nose-mounted armament
 +
** Small radiator drag
 +
** Excellent manoeuvrability, can outrun early Corsairs, Wildcats, and Spitfires
 +
* '''D4Y''' Specific:
 +
** Fast, can outrun almost anything, save the [[CW-21]] and [[He 100 D-1|He 100]]
 +
*** Its speed forces the enemy to tail behind your gunner, giving you a chance to shoot at the approaching fighter with your turret
 +
* '''{{PAGENAME}}''' Specific:
 +
** Has 400 more rounds in the offensive machine guns than the [[D4Y2]] and [[D4Y3 Ko]], making ammo count less of an issue
  
 +
[[File:D4Y1wikihard10.png|thumb|The D4Y1 has great turret coverage, it covers a high angle of attack from boom and zoomers.]]
 
'''Cons:'''
 
'''Cons:'''
  
−
* Very weak offensive armament
+
* '''D'''4Y for Carrier-based dive bomber:
−
* Exposed gunner
+
** Has bomb cradle, significant delay in fuselage bomb drop
−
* Defensive armament is largely useless at its BR
+
** Bomb load is not good enough for bombing bases
 +
* Common Navy plane construction:
 +
** Poor offensive armament: [[Type 97 navy (7.7 mm)|7.7 mm Type 97 MG]]
 +
** Poor defensive armament: [[Type 92 (7.7 mm)|7.7 mm Type 92 MG]]
 +
** Fragile, little armour, and no self-sealing fuel tanks
 +
** Exposed tail gunner
 +
* '''D4Y (early)''' Specific:
 +
** Engine overheats easily, it isn't a traditional Japanese radial engine
  
 
== History ==
 
== History ==
−
<!--''Describe the history of the creation and combat usage of the aircraft in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/ History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== Encyclopedia Info ===</nowiki></code>, also if applicable).''-->
+
<!-- ''Describe the history of the creation and combat usage of the aircraft in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' -->
−
Nicknamed the the "Judy" by allied pilots, the D4Y1 at the beginning of the war was one the fastest planes in all of the Pacific.
+
{{main|D4Y (Family)#History|l1=D4Y History}}
 +
[[File:D4Y1wikihard9.png|thumb|D4Y1 in flight]]
 +
Nicknamed the "Judy" by allied pilots, the D4Y1 at the beginning of the war was one the fastest planes in all of the Pacific.
  
−
The D4Y1 was a carrier based dive bomber. Powered by a 1,200 hp  "Aichi AE1A Atsuta V12" engine. The D4Y1 was modeled after the German He 118 with the engine being modeled after the DB 601 which was used in the BF110. Due to the Japanese Navy requiring an extreme range for the aircraft, it was designed without any armor or self sealing fuel tanks to lighten the plane so it would use less fuel. The lack of armor and protection decreased the weight, making them extremely quick and nimble but fragile if taking enemy fire. Combined with the unreliable engine the D4Y1 would see many upgrades in the following models adjusting many of the flaws.
+
The D4Y1 was a carrier based dive bomber, powered by a 1,200 hp "Aichi AE1A Atsuta V12" engine. The D4Y1 was modeled after the German He 118 with the engine being modeled after the DB 601 which was used in the Bf 110. Due to the Japanese Navy requiring an extreme range for the aircraft, it was designed without any armour or self-sealing fuel tanks to lighten the plane so it would use less fuel. The lack of armour and protection decreased the weight, making them extremely quick and nimble but fragile if taking enemy fire. Combined with the unreliable engine, the D4Y1 would see many upgrades in the following models adjusting many of the flaws.
  
−
In 1943 with the introduction of the F6F Hellcat, the D4Y's became a sitting duck. Where as with the F4F Wildcat, the D4Y's could just outrun them, the F6F would catch them with ease. During the "Great Marianas Turkey Shoot" a single F6F pilot Alexander Vraciu would shoot down 6 D4Y's within minutes. 400 Japanses planes would be shot down that day, but a D4Y did land a direct hit on the battleship USS South Dakota.
+
In 1943 with the introduction of the F6F Hellcat, the D4Y's became a sitting duck. Whereas with the F4F Wildcat, the D4Y's could just outrun them, the F6F would catch them with ease. During the "Great Marianas Turkey Shoot" a single F6F pilot Alexander Vraciu would shoot down 6 D4Y's within minutes. 400 Japanese planes would be shot down that day, but a D4Y did land a direct hit on the battleship USS South Dakota.
  
 
The D4Y's would become one of the most iconic planes the Japanese Military would use during World War 2.
 
The D4Y's would become one of the most iconic planes the Japanese Military would use during World War 2.
  
−
Only a single complete D4Y1 survives today, located at the "Yasukuni Jinja Yūshūkan shrine" in Tokyo it can be seen completely restored.
+
Only a single complete D4Y1 survives today, located at the "Yasukuni Jinja Yūshūkan shrine" in Tokyo it can be seen completely restored.
  
 
== Media ==
 
== Media ==
−
''Excellent additions to the article would be video guides, screenshots from the game, and photos.''
+
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
 +
 
 +
;Skins
 +
* [https://live.warthunder.com/feed/camouflages/?vehicle=d4y1 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
 +
 
 +
;Videos
 +
{{Youtube-gallery|ViBJLbbWcI8|'''Update 1.75 - D4Y1''' - ''TheEuropeanCanadian''}}
  
 
== See also ==
 
== See also ==
−
''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
+
<!-- ''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
 +
* ''reference to the series of the aircraft;''
 +
* ''links to approximate analogues of other nations and research trees.'' -->
  
−
* ''reference to the series of the aircraft;''
+
;[[D4Y (Family)|Related development]]
−
* ''links to approximate analogues of other nations and research trees.''
+
* [[D4Y2]] - Improved engine (Atsuta 31) and rocket payload
 +
* [[D4Y3 Ko]] - Radial engine (Kinsei 62) and better tail-gun
  
 
== External links ==
 
== External links ==
−
''Paste links to sources and external resources, such as:''
+
<!--''Paste links to sources and external resources, such as:''
 +
* ''topic on the official game forum;''
 +
* ''other literature.''-->
  
−
* ''topic on the official game forum;''
+
* [https://forum.warthunder.com/index.php?/topic/392577-d4y1/ Official data sheet - more details about the performance]
−
* ''encyclopedia page on the aircraft;''
 
−
* ''other literature.''
 
  
 +
{{AirManufacturer Yokosuka}}
 
{{Japan bombers}}
 
{{Japan bombers}}

Latest revision as of 09:48, 12 April 2024

Rank VI USA | Premium | Golden Eagles
A-10A Thunderbolt (Early)
This page is about the Japanese dive bomber D4Y1. For other versions, see D4Y (Family).
D4Y1
d4y1.png
GarageImage D4Y1.jpg
ArtImage D4Y1.png
D4Y1
Japan flag.png Japan
II Rank
Battle rating:
AB RB SB
2.0 2.0 2.3
Class:
Research:9 200 Specs-Card-Exp.png
Purchase:16 000 Specs-Card-Lion.png
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Description

The D4Y1 mod. 11, designated as the Suisei 11 (彗星一一型), was a dive bomber developed to replace the D3A1 with the primary design criteria being able to out-speed pursuers and out-range American carriers. With Japanese engine development lacking behind, the chosen high-output engine for the Suisei was the Aichi Atsuta 21 engine, a license-produced DB 601 found on the Bf 109 (Family) and many other German planes. While the engine outperformed its Japanese counterparts, the lack of industrial power, rare resources for parts and overall maintenance complexity strained its reliability and production numbers.

It was introduced in Update 1.75 "La Résistance". The pursuit for a long-range high-speed dive-bomber hampers the other capabilities of D4Y1, with relatively weak survivability, limited to only one bomb of maximum 500 kg which leaves the Suisei as a hit-and-run dive-bomber.

Nicknames

General info

Flight performance

Arrestor gear
Accelerates braking by grabbing the brake cable on the deck of the aircraft carrier
Air brakes
Allows you to dramatically reduce the flight speed by releasing special flaps
Max speed
at 4 750 m552 km/h
Turn time23 s
Max altitude9 800 m
EngineAtsuta Atsuta 21
TypeInline
Cooling systemWater
Take-off weight4 t
The D4Y1 going into a dive to destroy a small boat

The D4Y1 is a highly agile and speedy aircraft, it can turn fight anything it wishes, even Spitfires. It gets a bomber airspawn, which allows the D4Y1 to outclimb all the fighters, but be sure to select the right airspawn, because it gets a carrier spawn by default on pacific maps. The only issue with the performance of this aircraft arises at high altitudes, where it is left without a supercharger.

Characteristics Max Speed
(km/h at 4,750 m) 		Max altitude
(metres) 		Turn time
(seconds) 		Rate of climb
(metres/second) 		Take-off run
(metres)
AB RB AB RB AB RB
Stock 520 509 9800 23.9 24.5 5.6 5.6 300
Upgraded 589 552 22.2 23.0 14.4 9.3

Details

The D4Y1 is useful in Naval Ralistic Battles, as it can destroy many lightly armoured boats at this BR with its 500 kg bomb
Features
Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear
✓ ✓ ✓ ✓ ✓
Limits
Wings (km/h) Gear (km/h) Flaps (km/h) Max Static G
Combat Take-off Landing + -
750 350 457 428 280 ~15 ~11
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 350 < 400 < 400 > 200
Compressor (RB/SB)
Setting 1
Optimal altitude 100% Engine power WEP Engine power
4,500 m 970 hp 1,218 hp

Survivability and armour

Crew2 people
Speed of destruction
Structural750 km/h
Gear350 km/h

The D4Y1 has no armour. Additionally, the fuel tanks are not self-sealing. There are 2 in each wing. The gunner is not covered, making him vulnerable to attacks from the rear.

Modifications and economy

Repair costBasic → Reference
AB624 → 843 Sl icon.png
RB952 → 1 286 Sl icon.png
SB1 567 → 2 117 Sl icon.png
Total cost of modifications8 400 Rp icon.png
9 370 Sl icon.png
Talisman cost640 Ge icon.png
Crew training4 500 Sl icon.png
Experts16 000 Sl icon.png
Aces180 Ge icon.png
Research Aces190 000 Rp icon.png
Reward for battleAB / RB / SB
50 / 100 / 200 % Sl icon.png
118 / 118 / 118 % Rp icon.png
Modifications
Flight performance Survivability Weaponry
Mods aerodinamic fuse.png
Fuselage repair
Research:
560 Rp icon.png
Cost:
630 Sl icon.png
100 Ge icon.png
Mods radiator.png
Radiator
Research:
560 Rp icon.png
Cost:
630 Sl icon.png
100 Ge icon.png
Mods compressor.png
Compressor
Research:
630 Rp icon.png
Cost:
710 Sl icon.png
110 Ge icon.png
Mods aerodinamic wing.png
Wings repair
Research:
420 Rp icon.png
Cost:
470 Sl icon.png
75 Ge icon.png
Mods new engine.png
Engine
Research:
420 Rp icon.png
Cost:
470 Sl icon.png
75 Ge icon.png
Mods metanol.png
Engine injection
Research:
910 Rp icon.png
Cost:
1 000 Sl icon.png
160 Ge icon.png
Mods armor frame.png
Airframe
Research:
630 Rp icon.png
Cost:
710 Sl icon.png
110 Ge icon.png
Mods engine extinguisher.png
EFS
Research:
420 Rp icon.png
Cost:
470 Sl icon.png
75 Ge icon.png
Mods armor cover.png
Cover
Research:
910 Rp icon.png
Cost:
1 000 Sl icon.png
160 Ge icon.png
Mods ammo.png
type89_belt_pack
Research:
560 Rp icon.png
Cost:
630 Sl icon.png
100 Ge icon.png
Mod arrow 0.png
Mods weapon.png
type97_new_gun
Research:
630 Rp icon.png
Cost:
710 Sl icon.png
110 Ge icon.png
Mods ammo.png
type92_turret_belt_pack
Research:
420 Rp icon.png
Cost:
470 Sl icon.png
75 Ge icon.png
Mod arrow 0.png
Mods pilon bomb.png
13 in (mod35)
Research:
420 Rp icon.png
Cost:
470 Sl icon.png
75 Ge icon.png
Mods turret gun.png
type92_turret_new_gun
Research:
910 Rp icon.png
Cost:
1 000 Sl icon.png
160 Ge icon.png

The payload option should be a top priority, so getting to tier three modifications is of utmost importance. Rush the new belts and MGs, or the radiator or compressor if you choose to have better performance. Then get the bomb modification. After that, research all engine modifications and then the survivability modifications. Save the turret upgrades for last.

Armaments

Offensive armament

Weapon 12 x 7.7 mm Type 97 machine gun
Ammunition1 200 rounds
Fire rate900 shots/min
D4Y1 pulling out of a dive
Main article: Type 97 navy (7.7 mm)

The D4Y1 is armed with:

  • 2 x 7.7 mm Type 97 navy machine guns, nose-mounted (600 rpg = 1,200 total)

Suspended armament

List of setups (2)
Setup 11 x 250 kg Navy Type Number 25 Model 2 bomb
Setup 21 x 500 kg Number Type 2 50 Model 1 GP(SAP) bomb
Main articles: Navy Type Number 25 Model 2 (250 kg), Number Type 2 50 Model 1 GP(SAP) (500 kg)

The D4Y1 can be outfitted with the following ordnance:

  • Without load
  • 1 x 250 kg Navy Type Number 25 Model 2 bomb (250 kg total)
  • 1 x 500 kg Number Type 2 50 Model 1 GP(SAP) bomb (500 kg total)

Defensive armament

Turret7.7 mm Type 92 machine gun
Ammunition582 rounds
Fire rate600 shots/min
Main article: Type 92 (7.7 mm)

The D4Y1 is defended by:

  • 1 x 7.7 mm Type 92 machine gun, dorsal turret (582 rpg)

Usage in battles

The D4Y1 in Fiji

The D4Y1 is an excellent example of a multirole aircraft, as it is an excellent ground attack aircraft, fighter, and bomber. Since you get a bomber airspawn, you can drop your bomb on a base and then start to engage the many fighters below you. You should have no problems engaging them, as long is you keep your speed up and your energy high. One key thing to note is that you don't need to use your defensive turret to shoo away enemy interceptors. You can easily out turn any interceptor at that BR. Besides the fighter role, ground attack is the D4Y1's natural method of play. The 500 kg bomb will be excellent for destroying Pillboxes, and you can use your rifle-calibre machine guns to destroy any soft target you please.Spec

Specific enemies worth noting

  • CW-21 - The CW-21 poses a significant threat to the D4Y1, as it can out-turn, out-climb, and outclass the D4Y1 in every conceivable way. Its armament will shred through the D4Y1, and your plane would be a sitting duck. Now, your gunner can be of some use. Since the CW-21 is a very fragile aircraft, your gunner can set it afire, thus giving you the upper hand. But never under any circumstance attempt to go near this plane, as your gunner is only a last resort.
  • He 100 D-1 - Much like the CW-21, this aircraft will outclass you in every way. Your turret will once again come in handy, as it will surely damage its cooling system.

Manual Engine Control

MEC elements
Mixer Pitch Radiator Supercharger Turbocharger
Oil Water Type
Controllable Controllable
Not auto controlled 		Controllable
Not auto controlled 		Controllable
Not auto controlled 		Separate Not controllable
1 gear 		Not controllable

Pros and cons

The D4Y1's defensive gunner, which can help pick seagulls off of your six

Pros:

  • D4Y for Carrier-based dive bomber:
    • Choice between a 250 kg and a 500 kg bomb
    • Bomber airspawn, outclimbs anything and can intercept
    • Airbrakes
  • Common Navy plane construction:
    • Nose-mounted armament
    • Small radiator drag
    • Excellent manoeuvrability, can outrun early Corsairs, Wildcats, and Spitfires
  • D4Y Specific:
    • Fast, can outrun almost anything, save the CW-21 and He 100
      • Its speed forces the enemy to tail behind your gunner, giving you a chance to shoot at the approaching fighter with your turret
  • D4Y1 Specific:
    • Has 400 more rounds in the offensive machine guns than the D4Y2 and D4Y3 Ko, making ammo count less of an issue
The D4Y1 has great turret coverage, it covers a high angle of attack from boom and zoomers.

Cons:

  • D4Y for Carrier-based dive bomber:
    • Has bomb cradle, significant delay in fuselage bomb drop
    • Bomb load is not good enough for bombing bases
  • Common Navy plane construction:
  • D4Y (early) Specific:
    • Engine overheats easily, it isn't a traditional Japanese radial engine

History

Main article: D4Y History
D4Y1 in flight

Nicknamed the "Judy" by allied pilots, the D4Y1 at the beginning of the war was one the fastest planes in all of the Pacific.

The D4Y1 was a carrier based dive bomber, powered by a 1,200 hp "Aichi AE1A Atsuta V12" engine. The D4Y1 was modeled after the German He 118 with the engine being modeled after the DB 601 which was used in the Bf 110. Due to the Japanese Navy requiring an extreme range for the aircraft, it was designed without any armour or self-sealing fuel tanks to lighten the plane so it would use less fuel. The lack of armour and protection decreased the weight, making them extremely quick and nimble but fragile if taking enemy fire. Combined with the unreliable engine, the D4Y1 would see many upgrades in the following models adjusting many of the flaws.

In 1943 with the introduction of the F6F Hellcat, the D4Y's became a sitting duck. Whereas with the F4F Wildcat, the D4Y's could just outrun them, the F6F would catch them with ease. During the "Great Marianas Turkey Shoot" a single F6F pilot Alexander Vraciu would shoot down 6 D4Y's within minutes. 400 Japanese planes would be shot down that day, but a D4Y did land a direct hit on the battleship USS South Dakota.

The D4Y's would become one of the most iconic planes the Japanese Military would use during World War 2.

Only a single complete D4Y1 survives today, located at the "Yasukuni Jinja Yūshūkan shrine" in Tokyo it can be seen completely restored.

Media

Skins
Videos
Update 1.75 - D4Y1 - TheEuropeanCanadian

See also

Related development
  • D4Y2 - Improved engine (Atsuta 31) and rocket payload
  • D4Y3 Ko - Radial engine (Kinsei 62) and better tail-gun

External links


Yokosuka Naval Air Technical Arsenal (海軍航空技術廠)
Bombers  D4Y1 · D4Y2 · D4Y3 Ko
  P1Y1 mod. 11
Jet fighters  R2Y2 Kai V1 · R2Y2 Kai V2 · R2Y2 Kai V3
Captured  ␗P1Y1 mod. 11
  While the arsenal was simply known as the Naval Air Technical Arsenal and usually referred to as Kūgi-shō (Kaigun Kōkū Gijutsu-shō).
  The name Yokosuka prevailed however, even though it referred to the Arsenal's location.
See also  Yokosuka Naval Arsenal (Shipyard)

Japan bombers
Navy 
Carrier-based attack bomber 
B5N  B5N2
B6N  B6N1 · B6N2 · B6N2a
B7A  B7A2 · B7A2 (Homare 23)
Carrier-based dive bomber 
D3A  D3A1
D4Y  D4Y1 · D4Y2 · D4Y3 Ko
Shipboard Observation seaplane 
F1M  F1M2
Land-based Attack bomber 
G4M  G4M1
G5N  G5N1
G8N  G8N1
Flying boat 
H6K  H6K4
H8K  H8K2 · H8K3
Land-based Bomber 
P1Y  P1Y1
Army 
Light  Ki-32
  Ki-48-II otsu
Heavy  Ki-21-Ia · Ki-21-I hei
  Ki-49-I · Ki-49-IIa · Ki-49-IIb · Ki-49-IIb/L
  Ki-67-I Ko · Ki-67-I otsu
Other countries  ▅B-17E

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