M247

M247

M163

Imp.Chaparral

M247

M163

Imp.Chaparral

USA

VI Rank

Battle rating:

AB	RB	SB
9.0	9.0	9.0

Class:

SPAA

Research:190 000

Purchase:520 000

Description

The Gun, Air Defence Artillery, Self-Propelled, 40-mm, M247 is a Rank VI American self-propelled anti-aircraft gun with a battle rating of 9.0 (AB/RB/SB). It was introduced in Update 1.81 "The Valkyries".

General info

Survivability and armour

Armour type:

• Cast homogeneous armour (Hull)
• Rolled homogeneous armour (Rear (low), Roof, Turret)

Armour	Front (Slope angle)	Sides	Rear	Roof
Hull	85-200 mm (59-74°) Front glacis 63-200 mm (13-60°) Lower glacis	76 mm (8-43°) Front 51 mm (0-43°) Rear	35 mm (26-32°) Top 25 mm (61-62°) Bottom	57 mm
Turret	25.4 mm (15-76°) Turret front (Upper) 12.7 mm (40-69°) Turret front (Lower) 25.4 mm (0-87°) Gun mantlet	12.7-25.4 mm (0-19°) Upper 12.7 mm (40-69°) Lower	12.7 mm (18°)	12.7 mm

Notes:

• Suspension wheels and tracks are 20 mm thick.
• Belly armour is 38 mm in the front and 25 mm in the rear.

Mobility

The M247 turret is installed on a hull of an M60, because of this they have roughly the same mobility. The M247 is about 3 tons heavier than the M60 so it has been given a more powerful engine (750 hp) while the M60 has a max engine power of 716hp. For a vehicle this heavy, it has fairly good mobility. When spaded, it can comfortably hit a top speed of 45km/h on flat terrain, while in cross-country you will have a top speed of around 25 kph. While going backwards, the top speed is somewhat less impressive, about -9 kph.

Armaments

40 mm M266 Automatic Cannon (x2)
Capacity (Belt capacity each)			Fire rate (shots/minute)	Vertical guidance	Horizontal guidance
560 (280)			300	-5°/+85°	±180°
Turret rotation speed (°/s)
Mode	Stock	Upgraded	Prior + Full crew	Prior + Expert qualif.	Prior + Ace qualif.
Arcade	52.8	?	?	?	?
Realistic	35.7	?	?	?	?
Reloading rate (seconds)
Stock	Prior + Full crew	Prior + Expert qualif.	Prior + Ace qualif.
6.5	?	?	?

Ammunition

Penetration statistics
Ammunition	Type of warhead	Penetration in mm @ 90°
		10m	100m	500m	1000m	1500m	2000m
M811	HEFI-T*	5	5	5	5	5	5
M822	HEFI-T*	5	5	5	5	5	5
40 mm AP-T	AP-T	93	90	77	62	51	41

Shell details
Ammunition	Type of warhead	Velocity in m/s	Projectile Mass in kg	Fuse delay in m:	Fuse sensitivity in mm:	Explosive Mass in g (TNT equivalent):	Normalization At 30° from horizontal:	Ricochet:
								0%	50%	100%
M811	HEFI-T*	1100	0.87	0.2	0.1	255	+0°	79°	80°	81°
M822	HEFI-T*	1100	0.87	0.2	0.1	185	+0°	79°	80°	81°
40 mm AP-T	AP-T	1030	0.88	N/A	N/A	N/A	-1°	48°	69°	79°

Belt types

Belts	Shell composition	Combat usage
Default	HEFI-T* / AP-T	These work fine, a hit on an aircraft means instant disassembly for it and still is able to hurt ground vehicles, especially if it is side into the side of a enemy tank. These seem like a good I don't know what i will run into belt.
40 mm AP-T	AP-T / AP-T / AP-T / HEFI-T*	Very powerful ammunition against ground targets with significantly more penetration than other 35-40 mm AP-T projectiles. Will easily destroy any target with side shots even outside point blank range, and can destroy lighter targets and weak spots from the front even against MBTs.
M811	HEFI-T* / HEFI-T* / HEFI-T* / AP-T	"Poor man's anti-air ammunition." Unlike the M822 shells these require direct hits to do damage, but if you experience problems with M822 detonating too early this belt may be your best choice.
M822	HEFI-T* / HEFI-T* / AP-T	Proximity-fused shells that absolutely obliterate anything flying, when they work. Somewhat unreliable in if they detonate within range of the target, but when they do the target will be quickly torn apart. The only ammunition for self-propelled anti-aircraft guns that lets you kill planes and helicopters with near misses. Should be your go-to anti-air ammunition, if it works reliably for you.

Usage in battles

Pros and cons

Pros:

• Twin 40mm M266 cannon (L/70 40mm Bofors) have a better rate of fire compared to the M42 Duster.
• The M822 ammunition is proximity fused, and will detonate if the projectile passes close enough to the target.
• The 40mm's pose a serious threat to lightly-armored vehicles.
• Uses the M48 Patton's hull (armor included) = one of the best-protected SPAA in the game.
• Benefits in RB from aim assist thanks to the radar.

Cons:

• As with all high-rank SPAA, very thin turret armor; a shell strike could instantly end the vehicle.
  • Turret is also vulnerable to strafing aircraft + rockets.
• Armor advantages are nullified due to the inclusion of the Hull Break mechanic

History

Describe the history of the creation and combat usage of the ground vehicle in more detail than in the introduction. If the historical reference turns out to be too big, take it to a separate article, taking a link to an article about the vehicle and adding a block "/ History" (example: https://wiki.warthunder.com/(Vehicle-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref>, as well as adding them at the end of the article.

Media

Skins and camouflages for the M247 Sergeant York from live.warthunder.com.

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 series of the vehicles;
• links to approximate analogues of other nations and research trees.

External links

• [Devblog] TAM and M247 Sergeant York

USA anti-aircraft vehicles
M3 Half-track derivatives	M13 MGMC · M15 CGMC · M16 MGMC
M24 derivative	M19A1
M41 derivative	M42
Radar SPAAG	M163 · M247
Missile SPAA	ADATS · Imp.Chaparral · LAV-AD · XM975