30 mm/54 AK-630 (30 mm)

Description

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Vehicles equipped with this weapon

• MPK Pr.12412

General info

The AK-630 is an up-calibered equivalent to the M61 (20 mm) Vulcan. With a similar performance to the AK-230 (30 mm), the AK-630 is doubtless the father of all low caliber AAA systems. As seen in the AK-230, the dual purpose of the gun leaves nothing to expect: a fast firing, multi-purpose weapon with devastating ammunition, strong against surface vessels and positively annihilating against airborne threats. The main downside of the AK-630 compared to the AK-230 or the M61 are the lack of changable ammo belts but still very capable of decimating enemies.

Available ammunition

The AK-630 has access to the same HEF-T* and HEF-I* rounds but not AP-T. Be aware as the ammunition carried in the AK-630 is the same as in the AK-230, 2000 rounds only. Compared to the AK-230, the AK-630 can monstrously eat through those 2000 rounds within seconds. Compared to other anti-air systems seen at the battle-rating, the AK-630 has nothing we have not seen before. It is actually inside the "underpowered" anti-air systems compared to other 30 mm and rotary cannons. However, it compensates the lack of ammo belts with an ROF of ~5000 RPM. Remember, compared to the M61 Vulcan, the AK-630 might lack penetration, but it is still a 30 mm, meaning a heavier round which flies much faster causing much more damage per round compared to the 20 mm. However, due to both systems ROF, the damage done by them is nearly exactly the same as it is a matter of "how many rounds can I put into the enemy" instead of "how much damage can I do per round".

Penetration statistics
Ammunition	Penetration @ 0° Angle of Attack (mm)
	100 m	1,000 m	2,000 m	3,000 m	4,000 m	5,000 m
HEF-T*/HEF-I*	3	3	3	3	3	3

Comparison with analogues

Compared to AK-230:

The main difference between both systems is the fact one is a six barrel rotary cannon and the other, two individual cannons. There is not much significant difference between them use wise (with the exception of the AK-630 having the ability to be used as a CIWS). However, the increased ROF but the lack of AP-T make this system have a different approach when fighting. While yes, it is able to turn into Swiss cheese lightly armored vessels in two seconds, the lack of penetration and post-penetration effects make this system not very reliable against heavier targets. The ROF and use of tracers make this gun much easier to use in the anti-air role compared to the AK-230, however, the tracers also provide a really clear warning for the pilots who are being engaged.

Compared to the M61 Vulcan:

While both being rotary cannons, the increase in caliber gives the AK-630 the upper hand despite the lack of AP-T and AP-I belts, belts the M61 has access to. The ROF and fast targetting capabilities make the AK-630 a much more effective AAA but gives the winning stand to the M61 when it comes to penetrating medium armor.

Usage in battles

The AK-630 has very similar handling to the AK-230 mixed with the M61, a quick firing multi-purpose gun capable of destroying surface targets and annihilating airborne targets. The gun has two different engagement modes which will be described further:

 "Long range" engagements

The fact the gun has a low dispersion and high muzzle velocity, meaning it has a high accuracy, makes it very good at long range engagements. However, remember the gun has only 3 mm of penetration, meaning you will do absolutely nothing that has a thicker armor. The "long range" engagements of this system for surface targets should not exceed ~4km (and that is stretching the numbers really high) unless it is a very lightly armored surface target (sub-chaser, MTB, PT boat, etc etc). Make sure to not hold down the trigger for long, not only because the low amount of ammunition make engagements much complicated but also becasue the gun overheats really fast.

Airborne engagements:

It is pretty straight forward, detect-designate-track-engage. However, again try to avoid trigger happiness. The amount of rounds the AK-630 can put in the air is nowhere near comparable to other AAA systems, but be aware of the overheating and how the enemy plane reacts. A recommended tactic to use while while engaging enemy airborne threats (including bombs and missiles) is fire for seconds in a range of 2-4 seconds. Example: enemy bomber spotted at 8km - tracking radar locks - engagement begins - trigger is pressed for 1 second - rounds miss and enemy starts to manuver - reaims - trigger is pressed for 2 seconds - aircraft is destroyed. The use of tracking radar makes plane hunting easier, but it should be noted that sometimes tracking radars tend to display a somewhat awkward lead indicator. Use it as a guide but do not solely rely on it. It is really not recommended to utilize the AK-630 in ranges past 5km, specially cuz other higher caliber AAA systems will perform much better at long range engagements (specially those with proxyimity fuze) than a simple 30 mm HE.

 Close range engagements

The story completely changes in this matter! The "happy trigger" here is, while important to consider, close range is exactly where this weapon excels at. The fact it has a high ROF, a tremendous guidance speed (60°/s for horizontal drive) make this gun fool-proof. Detect-designate-track-engage. As long as these steps are followed the AK-630 will have absolutely no problems in turning Swiss cheese anything you fight as long as it is not heavily armroed. Fire at discretion. Be aware! If the gun keeps firing for long, it will overheat!

Airborne engagements:

This is where the AK-630 shines! The fact it has CIWS use make this a very capable and potent weapon system compared to other systems. Be aware, it is not as simple as it seems to be used as a CIWS, radar must be used (or cannot be used but then it turns things much harder) if accuarcy is to be achieved with ease. While search radars can detect all sorts of flying objects (including ship shells), the tracking radars can only track aircraft, bombs, missiles and rockets. This must be considered as the AK-630 is unable to destroy incoming enemy shells, but is capable of destroying incomming rockets, missiles and rockets (and obviously aircraft). The ease of destroying the airborne threats varies on a lot of factors: the distance between you and the threat, the speed of the threat, clutter between you and the threat (when more than one radio signals are detected, the tracking radar will have issues locking into one, the distance between the object and the surface, etc) and the reaction time of the user. While the AI will automatically engage enemy aircraft (as long as that option is active), it will not engage bombs, rockets or missiles, this is something the user must do. The smaller the object is, the harder it is to hit; a 100kg bomb will be harder to hit than a 5000kg bomb, same goes for rockets and the Nettuno AShM which is the only surface launched missile seen in naval combat as of now. Guided munitions like PC 1400 X (1,400 kg) Fritz-X bomb are the closest we have to air launched modern guided munitions. However, they are still deadly for the user and it must be careful when one is dropped. Thanks to the AK-630 having an elevation of -12°/+88°, there are no blind spots for the AK-630 (rotation angles effectiveness depend on mount, the MPK Pr.12412 has a full 360° rotation) but the elevation is blocked by the bridge and it is not able to counter threats comming in a ~90° frontal arc (45° per side).

Pros and cons

Pros:

• Extremely high ROF
• Powerful ammunition due to caliber
• Extremely accurate and fast guidance speed

Cons:

• Low ammunition count
• Easy to overheat
• Can eat through ammunition within seconds

History

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Media

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See also

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• reference to the article about the variant of the cannon/machine gun;
• references to approximate analogues by other nations and research trees.

External links

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USSR naval cannons
20 mm	ShVAK
25 mm	2M-3
30 mm	AK-230 · 30 mm/54 AK-630 · 30 mm/54 AK-630M · BP "Plamya"
37 mm	37 mm/67 70-K · V-11
45 mm	45 mm/46 21-K · 45 mm/68 21-KM · 45 mm/89 SM-20-ZIF · 45 mm/89 SM-21-ZIF
57 mm	AK-725
75 mm	75 mm/50 Canet patt.1892
76 mm	34-K · 39-K · 76 mm/60 AK-176M · AK-726 · D-56TS · F-34 · Lender AA gun, pattern 1914/15
85 mm	85 mm/52 92-K · 85 mm/54.6 ZIS-C-53 · 90-K
100 mm	100 mm/56 B-34 · 100 mm/70 SM-5-1 · Minizini
102 mm	Pattern 1911
120 mm	120 mm/50 pattern 1905
130 mm	130 mm/55 pattern 1913 · 130 mm/58 SM-2-1 · B-13
152 mm	152 mm/57 B-38
180 mm	180 mm/57 B-1-P · 180 mm/60 B-1-K
305 mm	12-inch/52 pattern 1907 · 305 mm/54 B-50
356 mm	14-inch/52 pattern 1913 (356 mm)
	Foreign:
40 mm	2pdr QF Mk.IIc (Britain) · Skoda (Czechoslovakia)
47 mm	3 pdr QF Hotchkiss (Britain)
76 mm	76 mm/40 Ansaldo mod.1917 (Italy)
88 mm	SK C/30 (Germany)
120 mm	120 mm/50 Mk.4 Bofors M1924 (Sweden) · 120 mm/50 O.T.O. Mod.1933 (Italy)
152 mm	152/53 mm O.T.O. Mod.1929 (Italy)
320 mm	320 mm/44 Ansaldo model 1934 (Italy)