Difference between revisions of "Grant I"

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(Said the American Grant can't be purchased but as of Update 1.89 it currently is for golden eagles)
(Said the American Grant can't be purchased but as of Update 1.89 it currently is for golden eagles)
 
(No difference)

Latest revision as of 17:49, 7 June 2019

Cruiser Tank Grant I
us_mk1_grant.png
AB
RB
SB
General characteristics
Brief
Detailed
2.7/2.7/2.7BR
6 peopleCrew
Mobility
27.9 tWeight
5 forward
1 back
Gear box
Armament
75 mm M2 cannonWeapon 1
65 roundsAmmunition
-9° / 20°Vertical guidance
-15° / 15°Horizontal guidance
37 mm M5 cannonWeapon 2
128 roundsAmmunition
-7° / 60°Vertical guidance
4 000 roundsAmmunition
250 roundsBelt capacity
500 shots/minFire rate
Economy
1 000 Ge icon.pngPurchase
Sl icon.png890/870/680Repair
2 300 Sl icon.pngCrew training
15 000 Sl icon.pngExperts
110 Ge icon.pngAces
x 2.12 Rp icon.pngReward for battle
This page is about the American medium tank Grant I. For the version in the British tree, see Grant I (Great Britain).

Description

GarageImage GrantI.jpg


The Cruiser Tank Grant I is a gift rank II American medium tank with a battle rating of 2.7 (AB/RB/SB). It was introduced in Update 1.45 "Steel Generals" in the initial batch of US vehicles available at launch. It is a modified version of the M3 Lee in the American medium tree line with a redesigned turret made for the British Army. It is currently available for purchase with Golden Eagles in the American tech tree.

The Grant is most well recognized for its tall profile and two cannons. The suspension resembles that of the M4 Sherman, the only notable difference being the return rollers' positions. The hull front is also stepped into two plates, where the upper is closer to vertical. The large sponson on the right side carries the main 75 mm gun; note that with 2 crew, it is the operational gun. The 37 mm gun is in a turret, mounted with a leftward offset. Its main notable difference from the M3 Lee is a redesigned turret.

Due to the presence of two cannons, this tank is an excellent multi-role vehicle. The Grant can be played it as a brawler combining the agile 37 mm gun with the high damage of the 75 mm gun, but don't get too close, in fact, the turreted gun has a bad depression and, combined with the high profile, tends to make close tanks difficult to hit. Note that the different guns can be assigned different keys to be separately used, so it is possible to select the 75 mm as a primary weapon, allowing the optics to accommodate the 75 mm shells (and not from the point of view of the 37mm gun) and use the bullet drop indicator in arcade battles.

General info

Survivability and armour

Armour type:

  • Rolled homogeneous armour (Hull, Turret roof)
  • Cast homogeneous armour (Turret, Transmission area)
Armour Front (Slope angle) Sides Rear Roof
Hull 38.1 mm (54°) Front Glacis
50.8 mm (15-55°) Transmission area
50.8 mm (30°) Driver port
38.1 mm (0-57°) Hull gun mount
38.1 mm (0-22°) Top
38.1 mm Bottom
38.1 mm (1-14°) Top
38.1 mm (15-53°) Bottom
12.7 mm
Turret 76.2 mm (1-57°) Turret front
38.1 mm (1-69°) Gun mantlet
50.8 mm (7-45°) 50.8 mm (1-35°) 38.1 mm
Armour Sides Roof
Cupola 50.8 mm 38.1 mm

Notes:

  • Suspension wheels are 15 mm thick, bogies are 10 mm thick, and tracks are 20 mm thick.
  • Hull doors and vision ports are 38.1 mm thick.
  • Turret ring is 50.8 mm thick.

Mobility

Mobility characteristic
Weight (tons) Add-on Armor
weight (tons)
Max speed (km/h)
27.9 N/A 43 (AB)
39 (RB/SB)
Engine power (horsepower)
Mode Stock Upgraded
Arcade 620 763
Realistic/Simulator 354 400
Power-to-weight ratio (hp/ton)
Mode Stock Upgraded
Arcade 22.22 27.35
Realistic/Simulator 12.69 14.34

Armaments

Main armament

Main article: M5 (37 mm)
37 mm M5
Capacity Vertical
guidance
Horizontal
guidance
Stabilizer
128 -7°/+60° ±180° Vertical
Turret rotation speed (°/s)
Mode Stock Upgraded Prior + Full crew Prior + Expert qualif. Prior + Ace qualif.
Arcade 10.70 14.80 18.00 19.90 21.20
Realistic 10.70 12.60 15.30 16.92 18.0
Reloading rate (seconds)
Stock Prior + Full crew Prior + Expert qualif. Prior + Ace qualif.
3.77 3.33 3.07 2.90
Ammunition
Penetration statistics
Ammunition Type of
warhead
Penetration in mm @ 90°
10m 100m 500m 1000m 1500m 2000m
M74B1 AP 78 76 65 54 44 37
M51B1/B2 APC 78 76 65 54 44 37
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%
M74B1 AP 883 0.87 N/A N/A N/A -1° 47° 60° 65°
M51B1/B2 APC 883 0.87 N/A N/A N/A +4° 48° 63° 71°
Ammo racks
Ammo racks of the M3 Lee
Full
ammo
1st
rack empty
2nd
rack empty
3rd
rack empty
4th
rack empty
5th
rack empty
6th
rack empty
7th
rack empty
8th
rack empty
Visual
discrepancy
128 122 (+6) 104 (+24) 86 (+42) 69 (+59) 52 (+76) 35 (+93) 18 (+110) (+127) Yes

Additional armament

Main article: M2 (75 mm)
75 mm M2
Hull mount
Capacity Vertical
guidance
Horizontal
guidance
Stabilizer
65 -9°/+20° ±15° Vertical
Reloading rate (seconds)
Stock Prior + Full crew Prior + Expert Qualif. Prior + Ace Qualif.
6.50 5.75 5.30 5.00
Ammunition
Penetration statistics
Ammunition Type of
warhead
Penetration in mm @ 90°
10m 100m 500m 1000m 1500m 2000m
M72 shot AP 96 95 81 66 54 45
M48 shell HE 10 10 10 10 10 10
M62 shot APCBC 79 78 72 65 58 52
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%
M72 shot AP 588 6.3 N/A N/A N/A -1° 47° 60° 65°
M48 shell HE 448 6.3 0.4 0.5 666 +0° 79° 80° 81°
M62 shot APCBC 588 6.8 1.2 20 63.7 +4° 48° 63° 71°
Smoke characteristic
Ammunition Velocity
in m/s
Projectile
Mass in kg
Screen radius
in m
Screen time
in s
Screen hold time
in s:
Explosive Mass in g
(TNT equivalent):
M89 259 3 13 5 20 50
Ammo racks
Full
ammo
1st
rack empty
2nd
rack empty
Visual
discrepancy
65 XX (+64) Yes

Machine guns

Main article: Browning (7.62 mm)
7.62 mm M1919A4
3,000 (250) 500 -10°/+60° ±180°
Coaxial mount
Capacity (Belt capacity) Fire rate
(shots/minute)
Vertical
guidance
Horizontal
guidance
4,000 (250) 500 N/A N/A

Usage in the battles

The multiple cannons allow for different combinations of attack. The 75 mm gun possesses armour penetration on about the level of the 37mm gun; however, the damage upon penetration is extremely high with the M61 APCBC shell due to the HE filler. On the other hand, the 37mm gun allows for close quarters and longer-range fighting, where its high-velocity and effective shell make for good long range targeting while it is also the only cannon on the Grant that has a full 360-degree traverse.

Different guns mean different styles of play. The Grant can be played as a tank destroyer, using its sponson gun to take shots at medium range and its 37mm to cover the flanks and make longer range snipe shots. The Grant can also be used as an assault tank, quickly advancing on points while switching between the powerful 75mm gun and the faster-firing 37mm. In all game modes, the two gun profiles should be assigned to different keys, this will allow players to aim using the sights of the three guns separately, allowing the usage of the individual optics to actually hit things at range.

Being at BR 2.7, the Grant I has the possibility of facing long-barrelled Pz.Kpfw. III, and Pz.Kpfw. IV, as well as T-34s, and (rarely) the Chi-Nu II. The ZiS-30 is also very deadly, as its gun is competitive even at 5.7. The 75 mm gun can reliable penetrate all of these tanks at short range (save the T-34), whereas the 37 mm will require some particular shot placement.

Pros and cons

Pros:

  • Ability to use two guns: a 37 mm and a 75 mm - which is very powerful at this rank.
  • Fine frontal armour.
  • Side mounted 75 mm gives the ability for some unique tactics.
  • Despite the tall profile, the "wedding cake" design of the turret has thick sloped armour, providing extra protection to make up for its height.

Cons:

  • Tall profile, big target
  • Side mounted gun - as much it is an advantage, it is a disadvantage too
  • Slow traverse speeds make it easy for a light or a particularly speedy medium tank to sneak around the sides.

History

Development

After the development of the M2 medium tank, the Battle of France showed that such a tank was not going to be capable to go against the German Panzer IIIs and Panzer IVs. With the Western Allies now embroiled in the North African campaign against the Germans and Italians, the Allies needed a good tank capable of going against the Panzer tanks, and they needed it quickly.

The M3 Lee tank started from the basis of the M2 Medium Tank, using the chassis and the VVSS suspension system. It was to mount the 75 mm cannon, however, it was discovered that the United States does not have a turret design that can mount the 75 mm gun. So as development on the turret proceeded, the 75 mm on the M3 Lee would be a sponson mounted. This design was tested on the M2 medium tank as the T5E2, which was approved for the M3 Lee design. The M3 Lee featured a medium tank with two guns, the 75 mm on the hull sponson mount, and a 37 mm with a coaxial machine gun on a turret, a cupola on the turret had its own machine gun. The use of two gun mounts on a tank was similar to the German Neubaufahrzeug and Soviet T-35 tanks. The M3 Lee's 75 mm gun, however, presented a huge advantage over contemporary tank armaments, the 75 mm could fire high-explosive rounds for against infantry, yet could fire a shell with a high enough velocity for anti-tank purposes.

The M3 Lee's faults were the high profile and the sponson mount for its armament. The M3 Lee was 10 ft. 3 in. tall, a foot taller than the M2 medium tank. The 75 mm on a sponson mount meant that the main armament of the tank had a limited traverse compared to a rotatable turret and forced the tank to reveal much of its body in order to aim the gun at the enemy. The M3 Lee was also constructed out of rivets (which increased spalling) and had a smooth track design which reduced ground traction. Despite these disadvantages, the Allies happily accepted them as they were critically low on tanks, and German Colonel Hans von Luck considered them superior to the Panzer IVs.

The initial batch of M3 Lees was given to the British for their campaign at North Africa. The British experience with the M3 Lee pointed out most of the M3 Lee's flaws, but they were concerned with the lack of radio in the turret and a lacking in armour, with which they modified the M3 Lee to accommodate. The new design had a new cast turret with room for radio, the hull had thicker armour, and the turret cupola's machine gun was removed for a simple hatch. The modified M3 Lee also required one less crew member due to the radio now being in the turret for the commander rather than for a radio operator. The British ordered 1,250 of these modified M3 medium tanks.

On August 1941, production started on the M3 Lee, though the armour was thicker than initials batches of the tank due to its combat experiences. A majority of these were completed at Baldwin Locomotive Works in Philadelphia, Pennsylvania. Of the total 6,258 M3s built between startup to the end of production in December 1942, 2,855 units went to the British and 1,386 went to the Soviet Union. Other users of the M3 Lee were the Australians and Indians in the Pacific Theater. The M3 Lee arriving in British arsenal caused confusion as the same "M3" designation was given to the M3 Light Tank. This set off the tradition of naming American tanks after generals, where the M3 medium tank earned the Lee for the Americans (Grant for the British variant) and the M3 light tank earned the Stuart.

Combat usage

Combat experience with the M3 Lee was complicated but favourable. In Africa, the Lees and Grants in British and American service surprised the German forces when they could withstand the 50 mm KwK 38 L/42 gun and 75 mm KwK 37 L/24 howitzer armament on the Panzer IIIs and Panzer IVs. The M3 Lee proved reliable and adequate in armour protection. The Soviet's experience with the M3 Lee was less favourable, as their T-34 tanks were much better in combat performance. The Soviets euphemistically called it a "grave for six men" and the Lee tanks were relegated to the secondary fronts or repurposed as armoured personnel carriers. In the Pacific, the M3 Lees were lent to the Australians and Indians, which proved vastly superior to the Japanese tanks in service. The only American use of the M3 Lee at the Pacific Theater was during the Battle of Makin Island.

The M3 Lee served fine as a stop-gap solution for the American tank development. They performed very well on the combat field and proved very reliable. However, once a 75 mm turret was finally designed, the M3 Lee was redesigned to use it, and the resulting tank was the M4 Sherman, which will go on to replace the M3 tanks in the Allies as they are withdrawn from service. Even if it wasn't, the M3 was becoming obsolete due to newer German tanks being deployed, such as the Panther, Tiger I, or improvement of old chassis like Panzer IV Ausf. G and StuG III Ausf. F. Its obsolescence was a consequence of its own rather unique development and anachronistic design, limiting this medium tank's service life to a mere two years in Allied hands. However, it lived on until the end of WW2 in some modifications such as tractor and recovery vehicle. The chassis and running gear were adapted by the Canadians to develop their Ram medium tank.

An anecdote

"The 75 (mm gun) is firing. The 37 (mm gun) is firing, but it is traversed around the wrong way. The Browning (machine gun) is jammed. I am saying ‘Driver advance’ on the A set and the driver, who can’t hear me, is reversing. And as I look over the top of the turret and see twelve enemy tanks fifty yards away, someone hands me a cheese sandwich.” —British Lieutenant Ken Giles, tank commander of a M3 Grant[1]

In-game description

The bitter taste left in the mouth of British builders after battles in Greece and France forced them to take a hard look at the future of their armor. They did not have a single powerful artillery system of their own, though the US at the time had just begun producing their new M3 Lee and its sponson-mounted 75 mm cannon.

After evaluating the American-made M3, the British decided that it would primarily be used in North Africa. A major invasion was planned for 1941, and so the Americans were asked to develop a new and elongated cast turret with a bustle at the back for a British Wireless Set No. 19. Periscopes were added on each side closer to the back in addition to slots from which to fire personal weapons. The cupola was unneeded and removed, being replaced by a short addition with a folding hatch in front of an antenna output. In total, the turret became 30 mm shorter, reducing the tank's profile. The M3 modification for the British was designated the Grant Mk I.

The first contracts with Baldwin, Lima, and Pullman were signed at the end of 1940, with deliveries totaling 1,685 units beginning six months later.

The Grant Mk I saw action in North Africa from 1942 to 1943 with varying success. Crew members reported that the German Pz.II and Pz.III tanks shot their armor-piercing shells from a distance of 1,100 meters. The Mk I was not as maneuverable as its German counterparts, and its side armor could not sustain hits from 50 mm tank cannons. Further, 88 mm anti-tank guns easily pierced its armor, while the high silhouette made long-range targeting easier.

The British Grant Mk Is saw limited action in the 1943 invasion of Sicily.

Media

The M3 Lee (right) and M3 Grant (left) in the North Africa Theater.
Bovington Tank Museum Tank Chats: M3 Grant

References

  1. Bell, Chris. "Fury: All You Need to Know about Life in a Tank." The Telegraph. Telegraph Media Group, 24 Oct. 2014. Web. 12 Jan. 2017. <http://www.telegraph.co.uk/culture/film/film-news/11167575/Fury-all-you-need-to-know-about-life-in-a-tank.html>

Read 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.

ETC.

Sources

Paste links to sources and external resources, such as:

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


USA medium tanks
Early projects  Medium Tank M2
M3  M3 Lee · Grant I · M4A5
M4  M4 · Calliope · M4A1 · M4A1 (76) W · M4A2 · M4A2 (76) W · M4A3 (105) · M4A3 (76) W
M26  T20 · T25 · M26 · M26 T99 · M26E1
Post-war  M46 · M46 "Tiger" · M47 · M48A1 · T95E1 · ADATS
MBT  M60 · M60A1 (AOS) · M60A1 RISE (P) · M60A2 · MBT-70 · XM-803 · XM-1 (GM) · XM-1 (Chrysler) · M1 Abrams · IPM1
Israeli  Magach 3 · Merkava Mk.1

USA premium ground vehicles
Light tanks  Light Tank M2A4 (1st Arm.Div.) · Light Tank M3A1 Stuart (USMC) · Light Armored Car M8 · M5A1 Stuart (5th Canadian Armored Division) · T18E2 "Boarhound"
Medium tanks  Cruiser Tank Grant I · M4A5 Ram II · Rocket Launcher T34 Calliope · T20 · Medium Tank M26 T99 · Medium Tank M26E1 · Medium Tank M46 Patton (73 Tank Batalion) · Magach 3 · Tank, Combat, Full-Tracked, 105-mm Gun XM-1 (GM) · Tank, Combat, Full-Tracked, 105-mm Gun XM-1 (Chrysler) · T54E1
Heavy tanks  Assault Tank T14 · Assault Tank M4A3E2 Jumbo "Cobra King" · Heavy Tank T29 · Heavy Tank T30
Tank destroyers  75 mm Gun Motor Carriage M8 · M18 Gun Motor Carriage "Black Cat" · M18 90-mm Gun Motor Carriage · Super Heavy Tank T28 · T114