Difference between revisions of "Akan m/70B (40 mm)"

Latest revision as of 19:39, 29 May 2024

Description

The 40 mm Akan m/70B is a Swedish autocannon based off the Bofors 40 mm L/70 used on Strf 9040 series of IFVs.

Vehicles equipped with this weapon

General info

The Akan m/70B is an upgraded variant of the Bofors 40 mm L/60 with a higher RPM and is fielded with modern ammunition.

Available ammunition

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
Ammunition	Type of warhead	10 m	100 m	500 m	1,000 m	1,500 m	2,000 m
slpprj m/90	APFSDS	143	142	137	130	123	116
slsgr m/90	HE	11	11	9	8	6	5
kulsgr m/90	HE-VT*	11	11	9	7	6	5
slpprj m/01	APFSDS	170	168	162	154	146	138

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (g)	Ricochet
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (g)	0%	50%	100%
slpprj m/90	APFSDS	1,465	0.5	-	-	-	78°	80°	81°
slsgr m/90	HE	988	0.96	0.1	0.1	174.4	79°	80°	81°
slpprj m/01	APFSDS	1,495	0.53	-	-	-	78°	80°	81°

Proximity-fused shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Arming distance (m)	Trigger radius (m)	Explosive mass (TNT equivalent) (g)	Ricochet
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Arming distance (m)	Trigger radius (m)	Explosive mass (TNT equivalent) (g)	0%	50%	100%
kulsgr m/90	HE-VT*	1,015	0.88	0.1	0.1	500	4	190.8	79°	80°	81°

Comparison with analogues

Give a comparative description of cannons/machine guns that have firepower equal to this weapon.

Usage in battles

The Akan m/70B is a multi-purpose autocannon. Using APFSDS means that you can eliminate a well protected MBT, even from the front if a weak spot is penetrated, although flanking manoeuvres are better suited as the post-penetration damage is poor with APFSDS. Lighter targets such as IFVs and SPAAs will stand no chance against this autocannon with its fast fire rate and its APFSDS. The Akan m/70B is also equipped with HE-VT, able to deal with helicopters and against jets. Best to use HE-VT against aircraft proceeding on their attack run, and catching them off guard.

Pros and cons

Pros:

Has access to APFSDS which can knock out any opponents it faces
Has access to HE-VT which can deal with any helicopters and aircraft
High rate of fire
Good penetration for an autocannon
High ammo count

Cons:

Easy to go through the 24 stage ready rack
Post-penetration damage with APFSDS is poor

History

By the end of World War II, the Bofors L/60 had proven itself to be an excellent design for an anti-aircraft autocannon. However, the post-war and early Cold War marked the dawn of the jet age. With aircraft achieving higher speeds, it became a challenge for the Bofors L/60 to take them down. In the late 1940s, the Bofors created the new Bofors L/70 which was adopted by the Swedish Army as the Lvakan m/48. However, Bofors would continue to work on improving the design, gradually increasing the rate of fire from 240 rounds per minute to 300 and later 330 rpm, and in the 1970s, they introduced proximity fuse ammunition which would be developed into the Akan m/70B. This specific variant of the Bofors L/70 was introduced for the CV90 series of infantry fighting vehicles which was mounted upside down to fit inside the turret and equipped with programmable shells capable of use with airburst, burrowing, impact or proximity fuses, as well as armour-piercing ammunition.

Media

Excellent additions to the article would be video guides, screenshots from the game, and photos.

External links

Paste links to sources and external resources, such as:

topic on the official game forum;
other literature.

Sweden tank cannons
20 mm	Akan m/47D · Pvlvkan m/40
37 mm	kan m/38
40 mm	akan m/70B
57 mm	Pvkan m/43
75 mm	kan m/02 · kan m/41 · kan Strv 74 · lvkan m/37 A · pvkan m/43
84 mm	kan Strv 81
90 mm	kan Ikv 91
105 mm	kan Bofors · kan Ikv · kan m/44 · kan Strv 101 · L74
120 mm	automatkanon · CTG · kan Strv 121 · kan Strv 122
150 mm	fsthaub m/02
155 mm	kan m/60
	Foreign:
35 mm	Bushmaster 3 ^(USA)
73 mm	2A28 ^(USSR)
75 mm	M3 ^(USA)
88 mm	KwK43 ^(Germany)
105 mm	L/50 ^(Belgium) · L7A3 ^(Germany)
125 mm	2A46M-1 ^(USSR)
155 mm	CN98 ^{(South Korea)}
	Finland
37 mm	Psv.K/36
114 mm	Psv.H/18
	Foreign:
30 mm	Bushmaster 2 Mk.44 ^(USA)
45 mm	20-K ^(USSR)
75 mm	KwK40 L48 ^(Germany)
76 mm	D-56TS ^(USSR) · F-34 ^(USSR) · L-10 ^(USSR)
77 mm	OQF Mk.II ^(Britain)
84 mm	20pdr OQF Mk.I ^(Britain)
85 mm	ZIS-S-53 ^(USSR)
100 mm	D-10T ^(USSR) · D-10T2S ^(USSR)
105 mm	L/50 ^(Belgium)
120 mm	Rh120 L/44 ^(Germany) · Rh120 L/55 ^(Germany)
125 mm	2A46 ^(USSR)

Sweden anti-aircraft guns
7.62 mm	Ksp 58
20 mm	Akan m/45B · Lvakan m/40B
40 mm	Akan m/70B · Lvakan m/36 · Lvakan m/48
	Foreign
20 mm	Oerlikon 204 GK ^{(Switzerland)}
35 mm	Oerlikon KDA ^{(Switzerland)}
57 mm	S-68 ^(USSR)

@@ Line 1: / Line 1: @@
+{{DISPLAYTITLE:akan m/70B (40 mm)}}
 == 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.''
+<!-- ''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 '''40 mm Akan m/70B''' is a Swedish autocannon based off the Bofors 40 mm L/70 used on Strf 9040 series of IFVs.
 === Vehicles equipped with this weapon ===
 <!-- ''List out vehicles that are equipped with the weapon.'' -->
 * {{Specs-Link|sw_lvkv_90c}}
+* {{Specs-Link|sw_strf_9056}}
+* {{Specs-Link|sw_strf_90b}}
 * {{Specs-Link|sw_strf_90c}}
 == General info ==
-''Tell us about the tactical and technical characteristics of the cannon or machine gun.''
+<!-- ''Tell us about the tactical and technical characteristics of the cannon or machine gun.'' -->
+The Akan m/70B is an upgraded variant of the Bofors 40 mm L/60 with a higher RPM and is fielded with modern 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).''
+<!-- ''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).'' -->
+{{:{{PAGENAME}}/Ammunition|slpprj m/90, slsgr m/90, kulsgr m/90, slpprj m/01}}
 === Comparison with analogues ===
 ''Give a comparative description of cannons/machine guns that have firepower equal to this weapon.''
 == 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.''
+<!-- ''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 Akan m/70B is a multi-purpose autocannon. Using APFSDS means that you can eliminate a well protected MBT, even from the front if a weak spot is penetrated, although flanking manoeuvres are better suited as the post-penetration damage is poor with APFSDS. Lighter targets such as IFVs and SPAAs will stand no chance against this autocannon with its fast fire rate and its APFSDS. The Akan m/70B is also equipped with HE-VT, able to deal with helicopters and against jets. Best to use HE-VT against aircraft proceeding on their attack run, and catching them off guard.
 === Pros and cons ===
-''Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.''
+<!-- ''Summarise and briefly evaluate the weaponry in terms of its characteristics and combat effectiveness. Mark pros and cons as a list.'' -->
+'''Pros:'''
-'''Pros:'''
+* Has access to APFSDS which can knock out any opponents it faces
-*
+* Has access to HE-VT which can deal with any helicopters and aircraft
+* High rate of fire
+* Good penetration for an autocannon
+* High ammo count
 '''Cons:'''
-*
+* Easy to go through the 24 stage ready rack
+* Post-penetration damage with APFSDS is poor
 == 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>.''
+<!-- ''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>.'' -->
+By the end of World War II, the [[Bofors L/60 (40 mm)|Bofors L/60]] had proven itself to be an excellent design for an anti-aircraft autocannon. However, the post-war and early Cold War marked the dawn of the jet age. With aircraft achieving higher speeds, it became a challenge for the Bofors L/60 to take them down. In the late 1940s, the Bofors created the new Bofors L/70 which was adopted by the Swedish Army as the [[Lvakan m/48 (40 mm)|Lvakan m/48]]. However, Bofors would continue to work on improving the design, gradually increasing the rate of fire from 240 rounds per minute to 300 and later 330 rpm, and in the 1970s, they introduced proximity fuse ammunition which would be developed into the Akan m/70B. This specific variant of the Bofors L/70 was introduced for the [[CV90 (Family)|CV90]] series of infantry fighting vehicles which was mounted upside down to fit inside the turret and equipped with programmable shells capable of use with airburst, burrowing, impact or proximity fuses, as well as armour-piercing ammunition.
 == Media ==
-''An excellent addition to the article would be a video guide, as well as screenshots from the game and photos.''
+''Excellent additions to the article would be video guides, screenshots from the game, and photos.''
 == 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 article about the variant of the cannon/machine gun;''
-* ''references to approximate analogues by other nations and research trees.''
+* ''references to approximate analogues by other nations and research trees.'' -->
+* [[Bofors (40 mm) (Family)]]
+* [[Bofors L/70 Mk.1 (57 mm)]]: An upscaled 57 mm variant with more firepower found on the [[Begleitpanzer 57]].
 == External links ==
 ''Paste links to sources and external resources, such as:''
 * ''topic on the official game forum;''
-* ''encyclopedia page on the weapon;''
 * ''other literature.''

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