Ordnance BL Tk. L11A5 (120 mm)

The Ordnance BL Tk. L11 (120 mm) on the Chieftain Mk 10 gun mantlet.

Description

The Ordnance BL Tk. L11 is a British 120 mm rifled cannon derived from the Conqueror's L1A2 120 mm main gun. This powerful gun was meant to be used in the Chieftain series Main Battle Tank, in-game this cannon is present on the Mk 3, Mk 5 and Mk 10 variants of this vehicle. At time of production, the L11, firing armour-piercing discarding sabot rounds (APDS), was one of the most fearsome anti-tank solutions present in an Armoured Fighting Vehicle and thus, fulfilled its purpose to defeat the 60s Soviet armour.

Vehicles equipped with this weapon

• Chieftain Mk 3
• Chieftain Mk 5
• Chieftain Mk 10
• Khalid

General info

Tell us about the tactical and technical characteristics of the cannon or machine gun.

Available ammunition

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
		10 m	100 m	500 m	1,000 m	1,500 m	2,000 m
Shot L15A3	APDS	298	296	288	277	268	258
Shell L31A7	HESH	152	152	152	152	152	152
Shot L23	APFSDS	410	408	405	400	390	380

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (m)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (kg)	Ricochet
							0%	50%	100%
Shot L15A3	APDS	1,372	7.48	-	-	-	75°	78°	80°
Shell L31A7	HESH	670	17.34	0.1	4	6.53	73°	77°	80°
Shot L23	APFSDS	1,535	3.89	-	-	-	78°	80°	81°

Smoke shell characteristics
Ammunition	Velocity (m/s)	Projectile mass (kg)	Screen radius (m)	Screen deploy time (s)	Screen hold time (s)	Explosive mass (TNT equivalent) (g)
L34	670	17.1	20	5	25	50

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.

Pros and cons

Pros:

• APDS round has high penetrating power, able to defeat all but the most heavily armoured MBTs it encounters.
• Has access to HESH ammunition, being capable to hull-break lightly armoured vehicles
• The L21A1 12.7 mm Heavy Machine Gun can be used alongside with the main gun to accurately rangefind targets due to the similar ballistic performance of both rounds.
• Late vehicles (namely the Chieftain Mk 10) have access to APFSDS ammunition

Cons:

• Slightly less accurate than smoothbore counterparts
• HESH shells produce little spalling, making them impracticable to fight heavy vehicles

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: https://wiki.warthunder.com/(Weapon-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref></ref>, as well as adding them at the end of the article with <references />.

Media

Images

• 

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.

External links

Paste links to sources and external resources, such as:

• topic on the official game forum;
• other literature.

Britain tank cannons
30 mm	L21A1
40 mm	QF 2-pounder
47 mm	Ordnance QF 3-pounder
57 mm	6pdr OQF Mk.III · 6pdr OQF Mk.V
75 mm	OQF Mk.V
76 mm	OQF 3-inch Howitzer Mk I · OQF 3in 20cwt · QF 17-pounder
77 mm	OQF Mk.II
84 mm	20pdr OQF Mk.I
94 mm	28pdr OQF · 32pdr OQF · OQF Mk.II
95 mm	Howitzer, Tank No.1, Mk.I
105 mm	LRF · Royal Ordnance L7A1
120 mm	Ordnance QF Tk. L1A2 · Ordnance BL Tk. L11 · L11A5 · L30A1
165 mm	ORD BL 6.5in L9A1
183 mm	QF L4A1
	Foreign:
25 mm	M242 (USA)
37 mm	M5 (USA) · M6 (USA)
75 mm	M2 (USA) · M3 (USA)
84 mm	kan Strv 81 (Sweden)
105 mm	Sharir (Israel)
120 mm	Rh120 L/55 A1 (Germany)
125 mm	2A46M-5 (Russia)
155 mm	M185 (USA)
	South Africa
20 mm	GI-2
76 mm	GT-4
90 mm	GT-2
105 mm	GT-3 · GT-7 · GT-8
155 mm	G6 L/45