Difference between revisions of "20F2 (20 mm)"
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== Description == | == Description == | ||
| − | <!-- | + | <!-- ''Write an introduction to the article in 2-3 small paragraphs. Briefly tell us about the history of the development and combat using the weaponry and also about its features. Compile a list of air, ground, or naval vehicles that feature this weapon system in the game.'' --> |
| − | |||
The '''GIAT Industries 20 mm F2''' (otherwise known as '''M693''') is a dual feed autocannon which fires the standard 20x139 mm munitions. It is a gas operated autocannon that has three firing modes, those being single shot, burst and safe. The gas system of the weapon operates via two vents on either side of the barrel, through which the gases push against the two pistons. While firing, the two pistons are pushed back, moving the struts backwards so that the breech block can move to the rear. In this way, all the firing forces are developed along the barrel centerline which maximizes accuracy. | The '''GIAT Industries 20 mm F2''' (otherwise known as '''M693''') is a dual feed autocannon which fires the standard 20x139 mm munitions. It is a gas operated autocannon that has three firing modes, those being single shot, burst and safe. The gas system of the weapon operates via two vents on either side of the barrel, through which the gases push against the two pistons. While firing, the two pistons are pushed back, moving the struts backwards so that the breech block can move to the rear. In this way, all the firing forces are developed along the barrel centerline which maximizes accuracy. | ||
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== General info == | == General info == | ||
| − | <!-- | + | <!-- ''Tell us about the tactical and technical characteristics of the cannon or machine gun.'' --> |
| − | Main | + | |
| + | Main calibre of the weapon is the 20x139 mm bullet. The length of the autocannon is 2,600 mm, while the barrel itself is 90 calibres (1,800 mm). The height of the autocannon was 260 mm and the weight was 71 kg. Rate of fire can be up to 900 rounds per minute, with the penetration force of up to 57 mm. | ||
=== Available ammunition === | === Available ammunition === | ||
| − | <!-- | + | <!-- ''Describe the shells that are available for the weapon and their features and purpose. If it concerns autocannons or machine guns, write about different ammo belts and what is inside (which types of shells).'' --> |
* '''Default:''' {{Annotation|HEFI-T|High Explosive Fragmentation Incendiary Tracer}}{{-}}{{Annotation|HVAP-T|High Velocity Armour Piercing Tracer}} | * '''Default:''' {{Annotation|HEFI-T|High Explosive Fragmentation Incendiary Tracer}}{{-}}{{Annotation|HVAP-T|High Velocity Armour Piercing Tracer}} | ||
=== Comparison with analogues === | === Comparison with analogues === | ||
| − | <!-- | + | <!-- ''Give a comparative description of cannons/machine guns that have firepower equal to this weapon.'' --> |
| − | {| class="wikitable" | + | {| class="wikitable" style="text-align:center" |
! colspan="7" |Comparable cannons to 20F2 | ! colspan="7" |Comparable cannons to 20F2 | ||
|- | |- | ||
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|▀ | |▀ | ||
|20 mm MG 151/20 | |20 mm MG 151/20 | ||
| − | + | | 1941 | |
| − | + | | 42 kg | |
| − | + | | 600 - 750 RPM | |
| − | + | | 20 x 82 mm | |
| − | + | | 26 mm | |
|- | |- | ||
|▄ | |▄ | ||
|[[Hispano HS.9 (20 mm)|Hispano HS.9]] | |[[Hispano HS.9 (20 mm)|Hispano HS.9]] | ||
| − | + | | 1933 | |
| − | + | | 48 kg | |
| − | + | | 360 - 420 RPM | |
| − | + | | 20 х 110 mm | |
|____________________ | |____________________ | ||
|- | |- | ||
|▄ | |▄ | ||
|[[Hispano 404 (20 mm)|Hispano 404]] | |[[Hispano 404 (20 mm)|Hispano 404]] | ||
| − | + | | 1932 | |
| − | + | | 49 kg | |
| − | + | | 700 - 750 RPM | |
| − | + | | 20 x 110 mm | |
| − | + | | 26 mm | |
|- | |- | ||
|▄ | |▄ | ||
|[[Hispano Mk.I (20 mm)|Hispano Mk.I]] | |[[Hispano Mk.I (20 mm)|Hispano Mk.I]] | ||
| − | + | | 1940 | |
| − | + | | 49 kg | |
| − | + | | 700 - 750 RPM | |
| − | + | | 20 x 110 mm | |
| − | + | | 26 mm | |
|- | |- | ||
|▄ | |▄ | ||
|[[Hispano Mk.II (20 mm)|Hispano Mk.II]] | |[[Hispano Mk.II (20 mm)|Hispano Mk.II]] | ||
| − | + | | 1941 | |
| − | + | | 50 kg | |
| − | + | | 600 - 850 RPM | |
| − | + | | 20 x 110 mm | |
| − | + | | 26 mm | |
|- | |- | ||
|▄ | |▄ | ||
|[[Hispano Mk.V (20 mm)|Hispano Mk.V]] | |[[Hispano Mk.V (20 mm)|Hispano Mk.V]] | ||
| − | + | | 1944 | |
| − | + | | 38 kg | |
| − | + | | 700 - 750 RPM | |
| − | + | | 20 × 110 mm | |
| − | + | | 26 mm | |
|- | |- | ||
|▃ | |▃ | ||
|[[AN/M2 (20 mm)|AN/M2]] | |[[AN/M2 (20 mm)|AN/M2]] | ||
| − | + | | 1942 | |
| − | + | | 49 kg | |
| − | + | | 600 RPM | |
| − | + | | 20 × 110 mm | |
| − | + | | 33 mm | |
|- | |- | ||
|▂ | |▂ | ||
|[[ShVAK (20 mm)|ShVAK]] | |[[ShVAK (20 mm)|ShVAK]] | ||
| − | + | | 1936 | |
| − | + | | 40 kg | |
| − | + | | 700 - 800 RPM | |
| − | + | | 20 × 99 mm | |
| − | + | | 27 mm | |
|} | |} | ||
== Usage in battles == | == Usage in battles == | ||
| − | <!-- | + | <!-- ''Describe the cannon/machine gun in the game - its distinctive features, tactics of usage against notable opponents. Please don't write a "guide" - do not impose a single point of view, but give the reader food for thought.'' --> |
The 20F2 shoots bullets that can pierce up to 57 mm of armour. This makes the 20F2 autocannons adequate enough to pierce trough most light vehicles with relative ease. However, if the angle is steep enough, the 20 mm bullets will just bounce and won't even scratch the enemy target, such as the [[BMP-2]]'s front armor. If one does not have a HEAT round loaded and fears that an APFSDS round might not cut it, they can resort to using their 20F2 to dispatch the light vehicle, as the 20 mm bullets have good spalling and will annihilate light vehicles within short bursts. | The 20F2 shoots bullets that can pierce up to 57 mm of armour. This makes the 20F2 autocannons adequate enough to pierce trough most light vehicles with relative ease. However, if the angle is steep enough, the 20 mm bullets will just bounce and won't even scratch the enemy target, such as the [[BMP-2]]'s front armor. If one does not have a HEAT round loaded and fears that an APFSDS round might not cut it, they can resort to using their 20F2 to dispatch the light vehicle, as the 20 mm bullets have good spalling and will annihilate light vehicles within short bursts. | ||
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=== Pros and cons === | === Pros and cons === | ||
| − | <!-- | + | <!-- ''Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.'' --> |
'''Pros:''' | '''Pros:''' | ||
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== History == | == History == | ||
| − | <!-- | + | <!-- ''Examine the history of the creation and combat usage of the weapon 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 weapon and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Weapon-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>.'' --> |
| + | The design of the '''M693''' is based on the earlier '''20 mm M621 autocannon'''. The main difference between the M693 and the M621 is, that the M693 differs in firing the more powerful 20 x 139 mm round and having a dual belt feed mechanism. The M621 main emphasis was lightness, while the M693 emphasis was just pure firepower. It entered service in the 1970's but the development began somewhere late 1960's. It was produced by the '''Groupement industriel des armements terrestres''' (otherwise known as '''GIAT'''). Thousands of these autocannons were produced. | ||
Sometime in the 1980s, the companies '''Direction des Constructions Navales''' (otherwise known as '''DCN''') and GIAT were contracted to design the F2 20 mm cannon, which was basically the navalised version of the M693 that the French Army used and sold to export. | Sometime in the 1980s, the companies '''Direction des Constructions Navales''' (otherwise known as '''DCN''') and GIAT were contracted to design the F2 20 mm cannon, which was basically the navalised version of the M693 that the French Army used and sold to export. | ||
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== Media == | == Media == | ||
| − | <!-- | + | <!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' --> |
| + | [[File:AMX30.jpg|none|thumb|AMX-30 with its 20F2 attached in the mantlet]] | ||
== See also == | == See also == | ||
| − | <!-- | + | <!-- ''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:'' |
| − | + | * ''reference to the article about the variant of the cannon/machine gun;'' | |
| − | * | + | * ''references to approximate analogues by other nations and research trees.'' --> |
| − | |||
| − | * | ||
* [[AMX-50 Surblinde]] - uses a different 20 mm autocannon, the MG151/20. | * [[AMX-50 Surblinde]] - uses a different 20 mm autocannon, the MG151/20. | ||
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== External links == | == External links == | ||
| − | <!-- | + | <!-- ''Paste links to sources and external resources, such as:'' |
| − | + | * ''topic on the official game forum;'' | |
| − | * | + | * ''encyclopedia page on the weapon;'' |
| − | * | + | * ''other literature.'' --> |
| − | * | ||
* [http://www.army-guide.com/eng/product3589.html <nowiki>[Army Guide] The M693</nowiki>] | * [http://www.army-guide.com/eng/product3589.html <nowiki>[Army Guide] The M693</nowiki>] | ||
Revision as of 19:37, 29 January 2021
Contents
Description
The GIAT Industries 20 mm F2 (otherwise known as M693) is a dual feed autocannon which fires the standard 20x139 mm munitions. It is a gas operated autocannon that has three firing modes, those being single shot, burst and safe. The gas system of the weapon operates via two vents on either side of the barrel, through which the gases push against the two pistons. While firing, the two pistons are pushed back, moving the struts backwards so that the breech block can move to the rear. In this way, all the firing forces are developed along the barrel centerline which maximizes accuracy.
Vehicles equipped with this weapon
General info
Main calibre of the weapon is the 20x139 mm bullet. The length of the autocannon is 2,600 mm, while the barrel itself is 90 calibres (1,800 mm). The height of the autocannon was 260 mm and the weight was 71 kg. Rate of fire can be up to 900 rounds per minute, with the penetration force of up to 57 mm.
Available ammunition
- Default: HEFI-T · HVAP-T
Comparison with analogues
| Comparable cannons to 20F2 | ||||||
|---|---|---|---|---|---|---|
| Name | Year of Creation | Mass | Rounds Per Minute | Ammunition | Maximum Penetration | |
| ▀ | 20 mm MG 151/20 | 1941 | 42 kg | 600 - 750 RPM | 20 x 82 mm | 26 mm |
| ▄ | Hispano HS.9 | 1933 | 48 kg | 360 - 420 RPM | 20 х 110 mm | ____________________ |
| ▄ | Hispano 404 | 1932 | 49 kg | 700 - 750 RPM | 20 x 110 mm | 26 mm |
| ▄ | Hispano Mk.I | 1940 | 49 kg | 700 - 750 RPM | 20 x 110 mm | 26 mm |
| ▄ | Hispano Mk.II | 1941 | 50 kg | 600 - 850 RPM | 20 x 110 mm | 26 mm |
| ▄ | Hispano Mk.V | 1944 | 38 kg | 700 - 750 RPM | 20 × 110 mm | 26 mm |
| ▃ | AN/M2 | 1942 | 49 kg | 600 RPM | 20 × 110 mm | 33 mm |
| ▂ | ShVAK | 1936 | 40 kg | 700 - 800 RPM | 20 × 99 mm | 27 mm |
Usage in battles
The 20F2 shoots bullets that can pierce up to 57 mm of armour. This makes the 20F2 autocannons adequate enough to pierce trough most light vehicles with relative ease. However, if the angle is steep enough, the 20 mm bullets will just bounce and won't even scratch the enemy target, such as the BMP-2's front armor. If one does not have a HEAT round loaded and fears that an APFSDS round might not cut it, they can resort to using their 20F2 to dispatch the light vehicle, as the 20 mm bullets have good spalling and will annihilate light vehicles within short bursts.
If one is dueling an MBT, the 20F2 can make short work of the hostile's cannon or tracks, rendering them unable to fight. If you are in a close quarters scenario or your main cannon is disabled, you can also try to penetrate the back armour, which in most cases leads to setting them ablaze if a fuel tank or the engine is struck, such as the Leopard 1.
Pros and cons
Pros:
- High fire rate
- Shreds trough light vehicles and in some cases even MBTs, thanks to its 57 mm of penetration
- It is attached to the mantlet, allowing the user to still use their main cannon with ease
- Can damage or destroy modules relatively quickly
Cons:
- Overheats fairly quick
- Limited ammunition pool, ranging from 480 to 1000 in some tanks
- Gives away the position of the user easily, as every round is also a tracer
- It is fairly inaccurate at longer ranges
History
The design of the M693 is based on the earlier 20 mm M621 autocannon. The main difference between the M693 and the M621 is, that the M693 differs in firing the more powerful 20 x 139 mm round and having a dual belt feed mechanism. The M621 main emphasis was lightness, while the M693 emphasis was just pure firepower. It entered service in the 1970's but the development began somewhere late 1960's. It was produced by the Groupement industriel des armements terrestres (otherwise known as GIAT). Thousands of these autocannons were produced.
Sometime in the 1980s, the companies Direction des Constructions Navales (otherwise known as DCN) and GIAT were contracted to design the F2 20 mm cannon, which was basically the navalised version of the M693 that the French Army used and sold to export.
The navalised F2 20 mm cannons are used to this day by the French Navy.
Media
See also
- AMX-50 Surblinde - uses a different 20 mm autocannon, the MG151/20.
- R3 T20 FA-HS - Uses a 20 mm Oerlikon KAD autocannon
External links
- [Army Guide] The M693
- [Weapon Systems] Parameters of the M693
- [Spitfire Site] Information about Hispanos
| France tank cannons | |
|---|---|
| 20 mm | 20F2 |
| 25 mm | SA35 L/72 |
| 37 mm | SA18 L/21 · SA38 L/33 |
| 47 mm | SA34 L/30 · SA35 L/32 · SA37 |
| 75 mm | APX · APX Canon de 75 mm modèle 1897 · SA35 L/17 · SA44 · SA49 · SA50 L/57 |
| 90 mm | D.911 APX · CN90 F2 · CN90 F3 · CN90 F4 · D915 · DEFA F1 · SA45 · SA47 |
| 100 mm | SA47 L/58 |
| 105 mm | CN-105-F1 · Giat 105 G2 · Modele F2 · PzK M57 |
| 120 mm | GIAT CN120-25 G1 · GIAT CN120-26 F1 · SA46 |
| 142 mm | ACRA |
| 155 mm | GCT F1 · Schneider 155 C · L'Obusier de 155 Modèle 1950 |
| Foreign: | |
| 15 mm | MG 151 (Germany) |
| 20 mm | MG 151 (Germany) |
| 30 mm | Bushmaster 2 Mk.44 (USA) |
| 37 mm | M6 (USA) |
| 40 mm | Bofors L/60 · QF 2-pounder (Britain) |
| 75 mm | KwK42 (Germany) · M3 (USA) · M6 (USA) |
| 76 mm | M7 (USA) |
| 90 mm | M3 (USA) |
| 105 mm | M4 (USA) |
