Difference between revisions of "IL-4"

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(Update 1.89: Flight model has been updated. Propeller performance updated.)
(→‎Suspended armament: Updated)
 
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{{Specs-Card|code=il-4}}
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{{Specs-Card
 +
|code=il-4
 +
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
 +
}}
  
 
== 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}}''' was a Soviet twin-engined bomber designed with the intent of being deployed as a medium bomber. It was developed in the 1930s by the Ilyushin Design Bureau and entered service in 1941. It was operated by both the Soviet Air Force, which mostly utilized it for frontline bombing, and the Navy, which made extensive use of it for torpedo bombing missions throughout World War II, incorporating 45-36AN torpedoes into their variant. With a top speed of 400 km/h and a range of over 2,000 kilometres, the {{Specs|name}} was also sporadically used as a strategic bomber. It had a crew of four and could carry a remarkable payload of up to 2,000 kg of bombs. Subsequent efforts to enhance its capabilities led to the development of the IL-6. Despite the promising advances, the project was eventually canceled, leaving the {{Specs|name}} as the final bomber in its [[DB-3 (Family)|family]]. By 1949, it had been entirely phased out.
−
{{break}}
+
 
−
The '''{{Specs|name}}''' is a rank {{Specs|rank}} Russian bomber {{Battle-rating}}. It has been in the game since the start of the Open Beta Test prior to Update 1.27.
+
The {{Specs|name}} has been in the game since the start of the Open Beta Test prior to Update 1.27. It mostly plays like its predecessor, the [[DB-3B]], with differences in engines and defensive armament. Due to its flexible payload options, it can be used in ground, air, and even naval battles. It should be noted, however, that compared to dedicated fighters or light bombers, its top speed and manoeuvrability are constrained.
  
 
== 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.'' -->
 +
The IL-4, being a development of the previous DB-3B, has similar flight characteristics as its predecessor. The aircraft has decidedly mediocre manoeuvrability and overall flight performance, which is to be expected considering its bomber role. The aircraft has a low top speed of ~400 km/h at higher altitudes, and absolutely horrible acceleration to go with it. The aircraft's climb rate is also mediocre, and will suffer greatly when carrying larger loads. On the plus side, the aircraft's engines don't have major overheating issues, and can use WEP power continuously for long periods of time.
 +
 
 +
The aircraft's manoeuvrability on a whole is rather undesirable. The control surfaces are sluggish, which is to be expected due to the aircraft's role. As well, note that the aircraft's control surfaces experience severe lock-up at high speeds - above ~500 km/h (a speed you will only ever obtain in dives), the elevator loses most of its deflection ability which could prevent you from pulling out of a dive. One plus is that the aircraft's wings break at a relatively high speed of 600 km/h IAS - this is a speed you'll never obtain unless you're in a steep dive, and in that case your elevator lock-up will prevent you from getting out of it anyways.
  
−
{| 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 6,250 m)
 
! colspan="2" | Max Speed<br>(km/h at 6,250 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
 
−
|-
 
−
| 389 || 375 || {{Specs|ceiling}} || 35.0 || 35.9 || 7 || 7 || 326
 
 
|-
 
|-
−
! colspan="8" | ''Upgraded''
+
! AB !! RB !! AB !! RB !! AB !! RB
 
|-
 
|-
−
! colspan="2" | Max Speed<br>(km/h at 6,250 m)
+
! Stock
−
! rowspan="2" | Max altitude<br>(meters)
+
| 389 || 375 || rowspan="2" | {{Specs|ceiling}} || 35.0 || 35.9 || 7.0 || 7.0 || rowspan="2" | 326
−
! colspan="2" | Turn time<br>(seconds)
 
−
! colspan="2" | Rate of climb<br>(meters/second)
 
−
! rowspan="2" | Take-off run<br>(meters)
 
 
|-
 
|-
−
! AB
+
! Upgraded
−
! RB
+
| 428 || 409 || 33.0 || 33.8 || 12.7 || 9.7
−
! AB
 
−
! RB
 
−
! AB
 
−
! RB
 
−
|-
 
−
| 428 || 409 || {{Specs|ceiling}} || 33.0 || 33.8 || 12.7 || 9.7 || 326
 
 
|-
 
|-
 
|}
 
|}
  
 
==== Details ====
 
==== Details ====
−
{| class="wikitable" style="text-align:center"
+
{| 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
 
 
|-
 
|-
 
| X || X || ✓ || X || X    <!-- ✓ -->
 
| X || X || ✓ || X || X    <!-- ✓ -->
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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 || ~5 || ~2
+
| {{Specs|destruction|body}} || {{Specs|destruction|gear}} || N/A || N/A || 280 || ~6 || ~3
 
|-
 
|-
 
|}
 
|}
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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)
 
 
|-
 
|-
 
| < 280 || < 240 || < 300 || > 270
 
| < 280 || < 240 || < 300 || > 270
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|}
 
|}
  
−
{| class="wikitable" style="text-align:center"
+
=== Survivability and armour ===
−
|-
+
{{Specs-Avia-Armour}}
−
! colspan="3" | Compressor (RB/SB)
+
<!-- ''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.'' -->
−
|-
+
 
−
! colspan="3" | Setting 1
+
* 6 mm steel behind pilot
−
|-
+
* 6 mm Steel plate in the tail
−
! Optimal altitude
+
* Self-sealing fuel tanks, with neutral gas pressurization system (3 in each wing)
−
! 100% Engine power
 
−
! WEP Engine power
 
−
|-
 
−
| 4,000 m || 1,100 hp || 1,274 hp
 
−
|-
 
−
! colspan="3" | Setting 2
 
−
|-
 
−
! Optimal altitude
 
−
! 100% Engine power
 
−
! WEP Engine power
 
−
|-
 
−
| 6,000 m || 1,000 hp || 1,158 hp
 
−
|-
 
−
|}
 
  
−
=== Survivability and armour ===
+
=== Modifications and economy ===
−
''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.''
+
{{Specs-Economy}}
  
 
== Armaments ==
 
== Armaments ==
 +
{{Specs-Avia-Armaments}}
 
=== 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|FAB-50 (50 kg)|FAB-100 (100 kg)|FAB-250M43 (250 kg)|FAB-500 (500 kg)|FAB-1000 (1,000 kg)}}
+
{{main|FAB-50sv (50 kg)|FAB-100sv (100 kg)|FAB-250sv (250 kg)|FAB-500sv (500 kg)|FAB-1000 (1,000 kg)}}
−
{{main|45-36AN}}
+
{{main|BRAB-250 (250 kg)|BRAB-500 (500 kg)|BRAB-1000 (1,000 kg)|45-36AN (450 mm)}}
  
 
The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance:
 
The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance:
−
* 10 x 50 kg FAB-50 bombs (500 kg total)
+
 
−
* 10 x 100 kg FAB-100 bombs (1,000 kg total)
+
* 10 x 50 kg FAB-50sv bombs (500 kg total)
−
* 2 x 250 kg FAB-250M43 bombs (500 kg total)
+
* 10 x 100 kg FAB-100sv bombs (1,000 kg total)
−
* 2 x 250 kg FAB-250M43 bombs + 10 x 100 kg FAB-100 bombs (1,500 kg total)
+
* 2 x 250 kg FAB-250sv bombs (500 kg total)
−
* 2 x 500 kg FAB-500 bombs (1,000 kg total)
+
* 2 x 250 kg FAB-250sv bombs + 10 x 100 kg FAB-100sv bombs (1,500 kg total)
 +
* 2 x 500 kg FAB-500sv bombs (1,000 kg total)
 
* 1 x 1,000 kg FAB-1000 bomb (1,000 kg total)
 
* 1 x 1,000 kg FAB-1000 bomb (1,000 kg total)
−
* 1 x 1,000 kg FAB-1000 bomb + 2 x 500 kg FAB-500 bombs (2,000 kg total)
+
* 1 x 1,000 kg FAB-1000 bomb + 2 x 500 kg FAB-500sv bombs (2,000 kg total)
−
* 1 x 45-36AN torpedo
+
* 1 x 450 mm 45-36AN torpedo
 +
* 2 x 250 kg BRAB-250 bombs (500 kg total)
 +
* 2 x 500 kg BRAB-500 bombs (1,000 kg total)
 +
* 1 x 1,000 kg BRAB-1000 bomb (1,000 kg total)
 +
* 1 x 1,000 kg BRAB-1000 bomb + 2 x 500 kg BRAB-500 bombs (2,000 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|Berezin UB (12.7 mm)|ShKAS (7.62 mm)}}
 
{{main|Berezin UB (12.7 mm)|ShKAS (7.62 mm)}}
  
 
The '''''{{PAGENAME}}''''' is defended by:
 
The '''''{{PAGENAME}}''''' is defended by:
−
* 1 x 12.7 mm Berezin UB machine gun, dorsal turret (200 rpg)
+
 
−
* 1 x 7.62 mm ShKAS machine gun, nose turret (1,000 rpg)
+
* 1 x 12.7 mm Berezin UB machine gun, dorsal turret (230 rpg)
 +
* 1 x 7.62 mm ShKAS machine gun, nose turret (550 rpg)
 
* 1 x 7.62 mm ShKAS machine gun, ventral turret (500 rpg)
 
* 1 x 7.62 mm ShKAS machine gun, ventral turret (500 rpg)
  
 
== Usage in battles ==
 
== Usage in battles ==
−
''Describe the tactics of playing in an 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).''
+
<!-- ''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).'' -->
 +
The IL-4 should be played similarly to its predecessor, the [[DB-3B]]. The aircraft's main advantage is its large collection of suspended armaments, meaning that it can be used quite effectively in multiple roles. In Air Battles, the IL-4 should be used as a fast bomber, delivering its payload to bases then retreating to avoid interception. The aircraft could also be used, in a niche role, as a torpedo bomber - as one of the few Soviet aircraft capable of carrying torpedoes, the IL-4 can easily destroy naval vessels in both Air and Naval battles.
 +
 
 +
The IL-4 can be used as an effective bomber in Air battles. In this role, the most effective load is the 1,000 kg + 2 x 500 kg bomb load. This load will allow you to take out at least one base, and potentially damage another. At the start of each battle, simply fly straight towards the enemy bases - you could side climb too, but it isn't advised as the bomb load will make the IL-4's climb rate almost completely nonexistent. After dropping bombs, immediately fly back towards friendly airspace, potentially in a slight dive. This ensures that the IL-4 won't be intercepted by pursuing fighters, most of which can tear its airframe to bits.
 +
 
 +
The IL-4 is unique in that it is one of very few USSR tech-tree aircraft that is capable of carrying a torpedo - that is, the Soviet 450 mm [[45-36AN (450 mm)|45-36AN]] torpedo. However useful the load may be, the Torpedo's effectiveness is severely limited by its slow drop speed. In naval battles, this torpedo is best used against early destroyers, which are large, bulky and (for the most part) lack effective anti-aircraft armament. Make sure to slow to the torpedo drop speed of 248 km/h, lead the target and drop the torpedo. Keep in mind that the IL-4 is a large bulky target; it may be wise to drop the torpedo early, to ensure survival.
 +
 
 +
If being pursued by enemy fighters, the best strategy is to simply run towards friendly airspace. The IL-4 lacks an effective defensive armament suite, and also cannot outspeed most fighters at its BR. If an engagement cannot be avoided, bait the fighters to your tail, and slightly above; this is where the aircraft's only 12.7 mm Berezin UB machine gun is located. Despite being of a lower calibre, the machine gun is accurate and highly effective, capable of setting enemy aircraft's engines on fire. You may even get some pilot-snipes, with enough accuracy.
  
 
=== Manual Engine Control ===
 
=== Manual Engine Control ===
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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" | Controllable<br>2 gears || rowspan="2" | Not controllable
 
−
|-
 
−
|}
 
−
 
 
−
=== Modules ===
 
−
{| class="wikitable"
 
−
! colspan="1" | Tier
 
−
! colspan="2" | Flight performance
 
−
! colspan="1" | Survivability
 
−
! colspan="2" | Weaponry
 
−
|-
 
−
| I
 
−
| Fuselage repair
 
−
| Radiator
 
−
|
 
−
| Turret 7 mm
 
−
|
 
 
|-
 
|-
−
| II
+
| Controllable || Controllable<br>Not auto controlled || Controllable<br>Not auto controlled || Controllable<br>Not auto controlled || Separate || Controllable<br>2 gears || Not controllable
−
|
 
−
| Compressor
 
−
| Airframe
 
−
| New 7 mm MGs (turret)
 
−
| Der-19
 
−
|-
 
−
| III
 
−
| Wings repair
 
−
| Engine
 
−
|
 
−
| Turret 12 mm
 
−
| Der-20
 
−
|-
 
−
| IV
 
−
| 95 octane fuel usage
 
−
| Engine injection
 
−
| Cover
 
−
| New 12 mm MGs (turret)
 
−
| T-18
 
 
|-
 
|-
 
|}
 
|}
  
 
=== 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".'' -->
  
 
'''Pros:'''
 
'''Pros:'''
−
*
+
 
 +
* The only researchable propeller torpedo bomber in the USSR tech tree
 +
* Decent payload options, including bombs of up to 1,000 kg
 +
* Gets a bomber airspawn allowing it to reach the battlefield faster
 +
* Engines are reliable and don't overheat much in RB
  
 
'''Cons:'''
 
'''Cons:'''
−
*
+
 
 +
* The torpedo's drop requirements and performance is poor compared to other nations' torpedoes
 +
* Defensive armament is lacklustre when compared to contemporaries such as the [[B-34]] (which actually gets twice as many guns!)
 +
* Lacklustre top speed and acceleration, will be outsped and outmanoeuvred by most fighter at its BR
  
 
== 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>=== In-game description ===</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).'' -->
  
−
=== In-game description ===
+
Although the IL-4 was designed as a medium bomber, its range allowed it to serve sporadically as a strategic bomber.
 +
 
 +
On June 23, 1941, namely the second day of Operation Barbarossa, the Red  and Soviet naval aviation used the IL-4 series to perform night raids on key strategic targets close to the border. However, early bombing raids had poor results, as the lack of centralised air command meant that bombers often flew without fighter cover and were easily shot down.
 +
 
 +
The IL-4 is most well known for a series of long-range bombing raids on Berlin in 1941. On August 27, August 30, and September 10, IL-4s bombed Berlin in 212 sorties, dropping 51 tons of bombs; bombed Budapest on September 5 and 10; bombed Bucharest on September 14. In addition, military targets were bombed in Warsaw, Königsberg, Veczin, Ployeshti, and other places. These attacks had little military effect, but they did a great deal to boost the morale of Soviet troops and civilians.
 +
 
 +
During most of the war, the IL-4 was used for medium-range bombing missions, so it became standard to have 1,000 kg bombs suspended under the wings, in addition to the internal 2,500 kg bombs.
 +
 
 +
In addition to its primary role, the IL-4 was used for transport, towing gliders, and strategic reconnaissance (the bomb bay could be equipped with a camera). About 5,000 were produced by the time it was discontinued in 1944. It served in the Navy until 1949.
 +
 
 +
{{break}}
 +
{{Navigation-Start|{{Annotation|Archive of the in-game description|An archive of the historical description of the vehicle that was presented in-game prior to Update 1.55 'Royal Armour'}}}}
 +
{{Navigation-First-Simple-Line}}
 
The IL-4 long-range bomber was one of the most famous Soviet bombers of WWII. With thousands of IL-4s built, the aircraft took part in all the important battles of the Eastern Front, including long-range bombing raids of Axis industrial targets. A large number of books, including both memoirs and technical publications, focus on the IL-4.
 
The IL-4 long-range bomber was one of the most famous Soviet bombers of WWII. With thousands of IL-4s built, the aircraft took part in all the important battles of the Eastern Front, including long-range bombing raids of Axis industrial targets. A large number of books, including both memoirs and technical publications, focus on the IL-4.
  
 
It was a twin-engine long-range bomber, a further development of the Ilyushin DB-3 bomber, with a redesigned cockpit, redesigned wings, pneumatic landing gear and a new fuselage designed for faster mass production, based on DC-3 / Li-2 production methods. The aircraft was designated IL-4 in March 1942. Combined with the DB-3, over 6,800 bombers of the DB-3/IL-4 family were built, 5,256 of them the IL-4. One of the most celebrated accomplishments for the type was a long-range bombing raid on Berlin in 1941.
 
It was a twin-engine long-range bomber, a further development of the Ilyushin DB-3 bomber, with a redesigned cockpit, redesigned wings, pneumatic landing gear and a new fuselage designed for faster mass production, based on DC-3 / Li-2 production methods. The aircraft was designated IL-4 in March 1942. Combined with the DB-3, over 6,800 bombers of the DB-3/IL-4 family were built, 5,256 of them the IL-4. One of the most celebrated accomplishments for the type was a long-range bombing raid on Berlin in 1941.
 +
{{Navigation-End}}
  
 
== 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=il-4 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
  
 
== 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;''
 
* ''reference to the series of the aircraft;''
−
* ''links to approximate analogues of other nations and research trees.''
+
* ''links to approximate analogues of other nations and research trees.'' -->
 +
 
 +
;[[DB-3 (Family)|Related development]]
 +
 
 +
* [[DB-3B]]
 +
* [[DB-3A (China)]]
 +
 
 +
;Aircraft of a similar role, configuration or era
 +
 
 +
* [[B-34]]
 +
* [[Ju 88 A-4]]
 +
* [[Wellington (Family)|Wellington]]
  
 
== 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;''
 
* ''topic on the official game forum;''
−
* ''encyclopedia page on the aircraft;''
+
* ''other literature.'' -->
−
* ''other literature.''
+
 
 +
* [https://forum.warthunder.com/index.php?/topic/356610-il-4/ Official data sheet - more details about the performance]
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* [[wikipedia:Ilyushin_Il-4|[Wikipedia] Ilyushin Il-4]]
  
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{{AirManufacturer Ilyushin}}
 
{{USSR bombers}}
 
{{USSR bombers}}

Latest revision as of 10:30, 4 November 2023

Rank VI USA | Premium | Golden Eagles
A-10A Thunderbolt (Early)
IL-4
il-4.png
GarageImage IL-4.jpg
IL-4
USSR flag.png USSR
II Rank
Battle rating:
AB RB SB
3.0 2.7 3.0
Class:
Research:4 600 Specs-Card-Exp.png
Purchase:16 000 Specs-Card-Lion.png
Show in game

Description

The IL-4 was a Soviet twin-engined bomber designed with the intent of being deployed as a medium bomber. It was developed in the 1930s by the Ilyushin Design Bureau and entered service in 1941. It was operated by both the Soviet Air Force, which mostly utilized it for frontline bombing, and the Navy, which made extensive use of it for torpedo bombing missions throughout World War II, incorporating 45-36AN torpedoes into their variant. With a top speed of 400 km/h and a range of over 2,000 kilometres, the IL-4 was also sporadically used as a strategic bomber. It had a crew of four and could carry a remarkable payload of up to 2,000 kg of bombs. Subsequent efforts to enhance its capabilities led to the development of the IL-6. Despite the promising advances, the project was eventually canceled, leaving the IL-4 as the final bomber in its family. By 1949, it had been entirely phased out.

The IL-4 has been in the game since the start of the Open Beta Test prior to Update 1.27. It mostly plays like its predecessor, the DB-3B, with differences in engines and defensive armament. Due to its flexible payload options, it can be used in ground, air, and even naval battles. It should be noted, however, that compared to dedicated fighters or light bombers, its top speed and manoeuvrability are constrained.

General info

Flight performance

Max speed
at 6 250 m406 km/h
Turn time34 s
Max altitude9 400 m
Engine2 х Tumansky M-88
TypeRadial
Cooling systemAir
Take-off weight15 t

The IL-4, being a development of the previous DB-3B, has similar flight characteristics as its predecessor. The aircraft has decidedly mediocre manoeuvrability and overall flight performance, which is to be expected considering its bomber role. The aircraft has a low top speed of ~400 km/h at higher altitudes, and absolutely horrible acceleration to go with it. The aircraft's climb rate is also mediocre, and will suffer greatly when carrying larger loads. On the plus side, the aircraft's engines don't have major overheating issues, and can use WEP power continuously for long periods of time.

The aircraft's manoeuvrability on a whole is rather undesirable. The control surfaces are sluggish, which is to be expected due to the aircraft's role. As well, note that the aircraft's control surfaces experience severe lock-up at high speeds - above ~500 km/h (a speed you will only ever obtain in dives), the elevator loses most of its deflection ability which could prevent you from pulling out of a dive. One plus is that the aircraft's wings break at a relatively high speed of 600 km/h IAS - this is a speed you'll never obtain unless you're in a steep dive, and in that case your elevator lock-up will prevent you from getting out of it anyways.

Characteristics Max Speed
(km/h at 6,250 m) 		Max altitude
(metres) 		Turn time
(seconds) 		Rate of climb
(metres/second) 		Take-off run
(metres)
AB RB AB RB AB RB
Stock 389 375 9400 35.0 35.9 7.0 7.0 326
Upgraded 428 409 33.0 33.8 12.7 9.7

Details

Features
Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear
X X ✓ X X
Limits
Wings (km/h) Gear (km/h) Flaps (km/h) Max Static G
Combat Take-off Landing + -
600 320 N/A N/A 280 ~6 ~3
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 280 < 240 < 300 > 270

Survivability and armour

Crew4 people
Speed of destruction
Structural600 km/h
Gear320 km/h
  • 6 mm steel behind pilot
  • 6 mm Steel plate in the tail
  • Self-sealing fuel tanks, with neutral gas pressurization system (3 in each wing)

Modifications and economy

Repair costBasic → Reference
AB639 → 1 044 Sl icon.png
RB1 027 → 1 678 Sl icon.png
SB1 692 → 2 764 Sl icon.png
Total cost of modifications8 440 Rp icon.png
9 530 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
40 / 90 / 160 % 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
120 Ge icon.png
Mods radiator.png
Radiator
Research:
560 Rp icon.png
Cost:
630 Sl icon.png
120 Ge icon.png
Mods armor frame.png
Airframe
Research:
470 Rp icon.png
Cost:
530 Sl icon.png
100 Ge icon.png
Mods compressor.png
Compressor
Research:
470 Rp icon.png
Cost:
530 Sl icon.png
100 Ge icon.png
Mods aerodinamic wing.png
Wings repair
Research:
530 Rp icon.png
Cost:
600 Sl icon.png
115 Ge icon.png
Mods new engine.png
Engine
Research:
530 Rp icon.png
Cost:
600 Sl icon.png
115 Ge icon.png
Mods armor cover.png
Cover
Research:
460 Rp icon.png
Cost:
520 Sl icon.png
100 Ge icon.png
Mods oil.png
95 octane fuel usage
Research:
460 Rp icon.png
Cost:
520 Sl icon.png
100 Ge icon.png
Mods metanol.png
Engine injection
Research:
460 Rp icon.png
Cost:
520 Sl icon.png
100 Ge icon.png
Mods engine extinguisher.png
EFS
Research:
460 Rp icon.png
Cost:
520 Sl icon.png
100 Ge icon.png
Mods ammo.png
shkas_turret_belt_pack
Research:
560 Rp icon.png
Cost:
630 Sl icon.png
120 Ge icon.png
Mod arrow 0.png
Mods turret gun.png
shkas_turret_new_gun
Research:
470 Rp icon.png
Cost:
530 Sl icon.png
100 Ge icon.png
Mods pilon bomb.png
Der-19
Research:
470 Rp icon.png
Cost:
530 Sl icon.png
100 Ge icon.png
Mods ammo.png
ub_turret_belt_pack
Research:
530 Rp icon.png
Cost:
600 Sl icon.png
115 Ge icon.png
Mod arrow 0.png
Mods pilon bomb.png
Der-20
Research:
530 Rp icon.png
Cost:
600 Sl icon.png
115 Ge icon.png
Mods turret gun.png
ub_turret_new_gun
Research:
460 Rp icon.png
Cost:
520 Sl icon.png
100 Ge icon.png
Mods pilon torpedo.png
T-18
Research:
460 Rp icon.png
Cost:
520 Sl icon.png
100 Ge icon.png

Armaments

Suspended armament

Main articles: FAB-50sv (50 kg), FAB-100sv (100 kg), FAB-250sv (250 kg), FAB-500sv (500 kg), FAB-1000 (1,000 kg)
Main articles: BRAB-250 (250 kg), BRAB-500 (500 kg), BRAB-1000 (1,000 kg), 45-36AN (450 mm)

The IL-4 can be outfitted with the following ordnance:

  • 10 x 50 kg FAB-50sv bombs (500 kg total)
  • 10 x 100 kg FAB-100sv bombs (1,000 kg total)
  • 2 x 250 kg FAB-250sv bombs (500 kg total)
  • 2 x 250 kg FAB-250sv bombs + 10 x 100 kg FAB-100sv bombs (1,500 kg total)
  • 2 x 500 kg FAB-500sv bombs (1,000 kg total)
  • 1 x 1,000 kg FAB-1000 bomb (1,000 kg total)
  • 1 x 1,000 kg FAB-1000 bomb + 2 x 500 kg FAB-500sv bombs (2,000 kg total)
  • 1 x 450 mm 45-36AN torpedo
  • 2 x 250 kg BRAB-250 bombs (500 kg total)
  • 2 x 500 kg BRAB-500 bombs (1,000 kg total)
  • 1 x 1,000 kg BRAB-1000 bomb (1,000 kg total)
  • 1 x 1,000 kg BRAB-1000 bomb + 2 x 500 kg BRAB-500 bombs (2,000 kg total)

Defensive armament

Main articles: Berezin UB (12.7 mm), ShKAS (7.62 mm)

The IL-4 is defended by:

  • 1 x 12.7 mm Berezin UB machine gun, dorsal turret (230 rpg)
  • 1 x 7.62 mm ShKAS machine gun, nose turret (550 rpg)
  • 1 x 7.62 mm ShKAS machine gun, ventral turret (500 rpg)

Usage in battles

The IL-4 should be played similarly to its predecessor, the DB-3B. The aircraft's main advantage is its large collection of suspended armaments, meaning that it can be used quite effectively in multiple roles. In Air Battles, the IL-4 should be used as a fast bomber, delivering its payload to bases then retreating to avoid interception. The aircraft could also be used, in a niche role, as a torpedo bomber - as one of the few Soviet aircraft capable of carrying torpedoes, the IL-4 can easily destroy naval vessels in both Air and Naval battles.

The IL-4 can be used as an effective bomber in Air battles. In this role, the most effective load is the 1,000 kg + 2 x 500 kg bomb load. This load will allow you to take out at least one base, and potentially damage another. At the start of each battle, simply fly straight towards the enemy bases - you could side climb too, but it isn't advised as the bomb load will make the IL-4's climb rate almost completely nonexistent. After dropping bombs, immediately fly back towards friendly airspace, potentially in a slight dive. This ensures that the IL-4 won't be intercepted by pursuing fighters, most of which can tear its airframe to bits.

The IL-4 is unique in that it is one of very few USSR tech-tree aircraft that is capable of carrying a torpedo - that is, the Soviet 450 mm 45-36AN torpedo. However useful the load may be, the Torpedo's effectiveness is severely limited by its slow drop speed. In naval battles, this torpedo is best used against early destroyers, which are large, bulky and (for the most part) lack effective anti-aircraft armament. Make sure to slow to the torpedo drop speed of 248 km/h, lead the target and drop the torpedo. Keep in mind that the IL-4 is a large bulky target; it may be wise to drop the torpedo early, to ensure survival.

If being pursued by enemy fighters, the best strategy is to simply run towards friendly airspace. The IL-4 lacks an effective defensive armament suite, and also cannot outspeed most fighters at its BR. If an engagement cannot be avoided, bait the fighters to your tail, and slightly above; this is where the aircraft's only 12.7 mm Berezin UB machine gun is located. Despite being of a lower calibre, the machine gun is accurate and highly effective, capable of setting enemy aircraft's engines on fire. You may even get some pilot-snipes, with enough accuracy.

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 Controllable
2 gears 		Not controllable

Pros and cons

Pros:

  • The only researchable propeller torpedo bomber in the USSR tech tree
  • Decent payload options, including bombs of up to 1,000 kg
  • Gets a bomber airspawn allowing it to reach the battlefield faster
  • Engines are reliable and don't overheat much in RB

Cons:

  • The torpedo's drop requirements and performance is poor compared to other nations' torpedoes
  • Defensive armament is lacklustre when compared to contemporaries such as the B-34 (which actually gets twice as many guns!)
  • Lacklustre top speed and acceleration, will be outsped and outmanoeuvred by most fighter at its BR

History

Although the IL-4 was designed as a medium bomber, its range allowed it to serve sporadically as a strategic bomber.

On June 23, 1941, namely the second day of Operation Barbarossa, the Red and Soviet naval aviation used the IL-4 series to perform night raids on key strategic targets close to the border. However, early bombing raids had poor results, as the lack of centralised air command meant that bombers often flew without fighter cover and were easily shot down.

The IL-4 is most well known for a series of long-range bombing raids on Berlin in 1941. On August 27, August 30, and September 10, IL-4s bombed Berlin in 212 sorties, dropping 51 tons of bombs; bombed Budapest on September 5 and 10; bombed Bucharest on September 14. In addition, military targets were bombed in Warsaw, Königsberg, Veczin, Ployeshti, and other places. These attacks had little military effect, but they did a great deal to boost the morale of Soviet troops and civilians.

During most of the war, the IL-4 was used for medium-range bombing missions, so it became standard to have 1,000 kg bombs suspended under the wings, in addition to the internal 2,500 kg bombs.

In addition to its primary role, the IL-4 was used for transport, towing gliders, and strategic reconnaissance (the bomb bay could be equipped with a camera). About 5,000 were produced by the time it was discontinued in 1944. It served in the Navy until 1949.


Archive of the in-game description

The IL-4 long-range bomber was one of the most famous Soviet bombers of WWII. With thousands of IL-4s built, the aircraft took part in all the important battles of the Eastern Front, including long-range bombing raids of Axis industrial targets. A large number of books, including both memoirs and technical publications, focus on the IL-4.

It was a twin-engine long-range bomber, a further development of the Ilyushin DB-3 bomber, with a redesigned cockpit, redesigned wings, pneumatic landing gear and a new fuselage designed for faster mass production, based on DC-3 / Li-2 production methods. The aircraft was designated IL-4 in March 1942. Combined with the DB-3, over 6,800 bombers of the DB-3/IL-4 family were built, 5,256 of them the IL-4. One of the most celebrated accomplishments for the type was a long-range bombing raid on Berlin in 1941.


Media

Skins

See also

Related development
Aircraft of a similar role, configuration or era

External links


Ilyushin Design Bureau (Илью́шинa Опытное конструкторское бюро)
Bombers  DB-3B · IL-4
Jet Bombers  IL-28* · IL-28Sh
Strike Aircraft  IL-8 (1944)
Il-2  IL-2 (1941) · IL-2 (1942) · IL-2M type 3 · IL-2M "Avenger" · IL-2M (1943) · IL-2-37 · IL-2 M-82
Il-10  IL-10 · IL-10 (1946)
Export/Captured 
Bombers  ␗DB-3A · ◊IL-28 · ◔IL-28
Strike Aircraft  ▀IL-2 (1942) · ␗IL-10 (1946) · ◔IL-10
  * The Chinese Harbin Aircraft Manufacturing Corporation built unlicensed copies of the Il-28 known as the H-5.

USSR bombers
SB and Ar  SB 2M-100 · SB 2M-103 · SB 2M-103 MV-3 · SB 2M-103U · SB 2M-103U MV-3 · SB 2M-105 · Ar-2
Yer-2 (petrol)  Yer-2 (M-105) · Yer-2 (M-105) TAT · Yer-2 (M-105R) TAT · Yer-2 (M-105R) LU
Yer-2 (diesel)  Yer-2 (ACh-30B) (e) · Yer-2 (ACh-30B) (l)
Tu  Tu-2 · Tu-2S · Tu-2S-44 · Tu-2S-59 · Tu-4
Pe  Pe-2-1 · Pe-2-31 · Pe-2-83 · Pe-2-110 · Pe-2-205 · Pe-2-359 · Pe-8
IL  DB-3B · IL-4
Po  Po-2 · Po-2M
Other  MBR-2-M-34 · TB-3M-17-32 · Yak-4 · Be-6
Lend-Lease  ▂PBY-5A Catalina · ▂Hampden TB Mk I · ▂A-20G-30 · ▂B-25J-30

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